What a beautiful use of technology to uphold someone's personhood, and let them know they are loved, despite (and with regard to) a profound injury.
This reminds me of a desire I've had for a long time: a simple, wall-mountable eInk device that could be configured with a URL (+wifi creds) and render a markdown file, refreshing once every hour or so. It would be so useful for so many applications – I'm a parish priest and so I could use it to let people know what events are on, if a service is cancelled, the current prayer list, ... the applications would be endless. I'd definitely pay a couple of hundred dollars per device for a solid version of such a thing, if it could be mounted and then recharged every month or two.
For anyone else that followed the "buy a device" link on the docs page, and found yourself on the (ended) Kickstarter page, editing the URL to https://usetrmnl.com/ works :)
(This is fantastic. Thank you for sharing about it!)
> Most IoT products support SSH-ing directly into peripheral devices. We've heard too many horror stories about how this can go wrong, and decided to invert the paradigm.
> Your TRMNL device pings our server, never the other way around.
> Each request made to our /api/display endpoint includes only the minimum details needed to support customers -- an API key, device mac address, firmware version, battery voltage, and wifi signal strength.
Super hackable but it pings their hosted server and nothing else?! Is there a way to run your own server?
we're adding more docs on running your own server soon, which will include 1-click deploy starter projects that Just Work.
if you think about it, we are incentivized to do this. no subscription fees means the more you ping our server, the lower our margin. but for now we're wrapping up fulfilling all pre-orders, scaling, etc typical new product issues.
even without BYOS (bring your own server) docs however, it's already possible to point TRMNL to your own stack if you 1) fork our OSS firmware + b) have some experience with e-ink.
Can you clarify what the difference between the Developer Edition and normal edition are? It's not clear from the checkout flow if this is required in order to create plugins, and is not mentioned anywhere in the docs.
They seem to have the api base url hardcoded in their firmware[1]. The repo seems to have pretty clear instructions for compiling and flashing modified firmware. From there, it's just a matter of writing a decent server to implement the calls documented in BYOD/S[2] and Private API.[3]
Seems very nice buuuut why did they put the USB-C on the back if it is supposed to be wall mounted and needs to be charged every couple of months? Why not on one side??
assuming your eink display would be on the same LAN as some always-on PC...
1. install python
2. make a file named `index.html` somewhere.
2a. put this in the "head" tag, so it'll refresh hourly: `<meta http-equiv="refresh" content="3600">`.
3. run `python -m http.server` from the same folder
This will start a single-threaded web server on 8000
4. On another machine on your network verify you can pull up http://firstmachine:8000/.
5. having proven it works, go buy an e-ink display and point it to http://firstmachine:8000/, make it the default homepage.
Voila.
Any time you have anything to say, just edit the `index.html` file and the eink display will update.
No need for fancy subscription services or kickstarter projects or crowdfunding... just... batteries included python.
I'm developing something so that everyone can do this easily[0]. It's a plugin based presentation software. Real time connection through websocket.
So all you need to do is create a project and use a plugin(existing or your own) to generate your view. The plugin is flexible, so it could be a custom UI or uploading a HTML file for example.
Then, you can open a link on any machine like the e-ink display.
Open-source and self-hostable. But you can also use the online version I'm hosting.
It's still very new so things will break but I'm already using it in church and other meetings.
Having done this, you will also most likely want to setup a javascript timer that also triggers a refresh in case the meta refresh fails. And a weekly reboot of the machine in case there is a memory leak or some other issue.
The primary issue I would imagine, would be not that a meta refresh fails to happen, rather, that any type of full refresh is attempted during a momentary 'blip' of the local network, leaving it showing a "cannot find server" type of error. To achieve the safest persistence of the refresh loop, it would probably make more sense to have the refresh function via
1. AJAX request for itself, with a timed retry in the case of any failure (optional: During this time, add a visible indicator that you're having connectivity issue)
2. Extract the contents of the <body> tag of the fetched HTML
3. Set the innerHTML of the <body> tag of the DOM to the fetched body.
To avoid memory leaks I'd still be tempted to also try to implement a "safe-ish refresh" that checks for a successful response and quickly fires off a location.reload() on like a daily basis.
That sounds like defensive programming; what makes you think meta refresh will not trigger always? If you can demonstrate it, it'd be worth filing a bug report with the respective browser(s). Same with the reboot, although the user does not control every software in the e-reader. That said, e-readers and tablets are designed to be always-on, so memory leaks should be rare nowadays.
I have setup a raspberry PI dashboard before and run into these exact issues. They are not defensive or pre-emptive. An e-reader will probably not have the same issues, just sharing my experience.
* Browser runs out of memory or has other issue and stops refreshing.
* Wifi connection drops and browser displays an error page and stops executing your refreshes. The power-saving options on the RPIs wifi caused me quite a bit of grief before I disabled them.
* Raspberry Pi crashes with kernel errors due to cheap SD card, underpowered USB power supply, or something else.
I ran into these issues one by one over a few months and fixed each one as I ran into it. What I ended up with was:
* Browser set to run at OS startup displaying my page.
* That page having a meta refresh tag, and javascript code to reload the page periodically.
* A browser extension to automatically reload the page as well if both of those failed.
* A watchdog daemon that detects when the RPI has frozen and reboots it.
* A cron job that reboots periodically.
With all of those my dashboard would run for months without any issues or interruptions. Just sharing so others can be aware of potential issues.
There's nothing wrong with defensive programming, especially if it is supposed to run on a device where you don't have easy and/or immidiate access in case something stops working.
We had to configure a daily reboot for a raspberry PI that just displayed a web page with the current status of emergency calls for local first responders on a mounted TV screen.
Purpose: if you come into the building to fetch the car with the medical equipment, you could see at a glance how many people acknowledged the alert and would arrive shortly etc. Sadly, the system tended to loose its WIFI connection and then the reloaded web page would display a network error. And since the web page was a 3rd party product, we could not hack the Javascript.
It sounds like there’s a lot more edge case complexity to this than the GP originally thought.
Like most DIY tinkerer solutions, unfortunately, which is why people like paying money for productised solutions - the time it takes to debug and troubleshoot home made solutions is often prohibitive for a lot of people who aren’t techheads.
This is both fair and obvious... but at the same time, the nits folk are bringing up are not fleshed out.
"I had to reboot my raspberry pi"
and
"whoops rando eInk display doesn't do javascript"
are both super weird and frankly unfair to consider as criticisms of the original solution.
... In short - if our parish priest above sees the original post, I'd suggest he give it a go. It's an hour to set up and won't cost him or his parish anything (aside from buying the eink display ofc).
If it turns out that the DIY solution is insufficient, or his parish is wealthy enough to spend money on a thing like this, great, then upgrade to that.
Kobo readers are fairly non-rando, they're the second most popular eInk readers after the Kindle I think. I agree that lack of Javascript support is not a blocking issue on the use case though (although it does make it a little more annoying).
Would an old rooted Nook Simple Touch suffice for your use case? They're very cheap these days and you've direct access to some early version of Android on them
If you're comfortable with microcontrollers (esp32/arduino), I can definitely recommend Inkplate. I found them when I was making a similar setup for my parents, and they have various sizes up to 10" and up to 6 colors they can display.
You can either just get the module, or buy with a battery and mountable case already attached. I think all of the models are also available via Digikey and Mouser if people don't trust random websites.
Seconded. I matted and framed one InkPlate 10 and hung it on our wall, then wrote a simple "show the next three days from everyone in the family's Google Calendars" image creation script and it's been wonderful.
The principal of my son’s former school was a Sister of St Joseph, and a huge HN fan.
More amazing was how creative the sisters were in managing themselves with technology. Many decisions are made by votes, done in real time globally! Religious people get short shrift.
You may be interested in https://github.com/aceinnolab/Inkycal, it looks like it's out of stock at the moment but they have pre-made devices or you can make your own with a list of parts.
My fridge isn't magnetic. A lot of modern fridges aren't.
Might be a neat idea to offer a magnetic mount for it, like a flexible flat magnetic board shaped to fit the TRMNL with a sticky backing so you can attach it somewhere and then use that to attach the TRMNL (your site doesn't seem to say anything about being magnetic so I'm guessing you have to attach magnets to the TRMNL too though?).
For that matter, the site doesn't offer any information about mounting it at all. Looking at the disassembly animation I see what looks like a hole to hang it on a nail, but it might be nice to put this info at least in the FAQ section if nowhere else (that does say it can be "hung on a wall" but no details).
thanks for the feedback, will add more detail to our website specs + docs.
we included magnets for VIP backers on our crowdfunding campaign and may start selling them again. device has a mounting hole on the back for nails / hooks, we’ll probably release mechanical specs so people can 3D print or otherwise fabricate their own mounts. for example some people want to mash up an array of them. but until then, adhesive magnets work great for the fridge use case.
You can buy sheets of rubbery material with sticky backing and metal powder embedded in the rubber. One supplier is WarMag - people use them as a surface for putting magnetic-based figures on.
I came into possession of several sheafs of the A4-sized ones, which now serve as "generic surprisingly heavy objects".
Nothing spectacular, I just want to have a display by the door that shows various things I'd like to check on before leaving, like: which windows are open, outside temperatures, etc.
I don't want a battery because:
- although every X months is quite ok, I don't want the hassle of remembering to charge it (first world problems, I know)
- but I also have a fear of leaving devices with a battery plugged in for a long time / having to monitor for battery swelling or other abnormalities
I already have a classic battery-powered display which shows temperature info from some sensors and it's really convenient, but annoying when the battery is dead right when you need the info. Even if that only happens every X months.
If you have a hacker’s soul, an old Kindle, a jailbreak, and a Python installation, anything becomes possible. I’m working on something like that (though I hadn’t thought about markdown!). The Kindle is a particularly fun device once it’s hacked!
I looked into this a while back, but can you post some notes on jailbreak kindles? Aren't there certain models of Kindle that can be had very cheaply. That are possibly locked or have some dead component, but the screen can be used with a jailbreak? They were like only ~$10 on ebay.
I've seen these in a few restaurants as menus listing the special of the day. They were mounted elegantly in some stone mounting so didn't give the ipad mcdonalds touchscreen feel. They just looked printed but on closer inspection were e-ink
Not super relevant but your site is super janky for me (chrome, ubuntu). I get a scrollbar for the second part of your site, which then captures scrolling so if my cursor is in the middle of the page and I go down then up I am stuck.
ah really?? feel free to email us (team@usetrmnl.com). we've been granted a bunch of EC licenses lately but maybe missed a few country check boxes on our store.
I wish this had come up on HN (or I had had that idea myself) some years ago when my mother suffered from that same cruel condition, for the last four years of her life. With her body, all her older memories and her considerable intelligence largely intact, she had multiple moments of clarity every single day, in which she fully realized the terrible and hopeless situation she was in. But of course, within seconds this thought and any decisions she might have derived from it dissolved in the black hole of her defective short-term memory. So she would not even have had the ability to take her own life to end this if she wished so.
My brother and I tried many things to improve her life somewhat, only very few of those were actually a bit succesful. Two of them were digital gadgets, which we selected to provide some benefit without or at least with just very simple interactions: The best one was an LCD "picture frame" the only feature of which was to show an infinite loop of family photos stored on its SD card - she came to really like it and have it switched on quite consistently. The second one was an MP3 speaker which had a few hours of her favorite music on an SD card as well, and which could be used largely like a radio, just by pressing its play/stop button and volume buttons. This latter one she managed to enjoy at least from time to time.
Best wishes to the author and his mom, and everyone in a similar situation.
My wife acquired anterograde amnesia after a car accident. This device may or may not have worked for her: she would probably have discovered the device anew every time (as in, every 10 minutes or so), although she would probably be pleased each time.
Thankfully she fully recovered after a few weeks. It takes a lot of patience to deal with someone like that, and you could tell it frequently caused a lot of frustration on her part. Every 10 minutes or so in fact.
That illustrates the difference between anterograde amnesia and dementia. Dementia is a general degradation of the brain that includes memory but you can have amnesia with an otherwise perfectly functional brain. A patient with dementia would never text her kids as in OP's case.
My grandpa had dementia. Last time me and my mom flew over to visit he didn't recognize either of us the first day. He didn't even remember having a daughter. Second day he vaguely recognized my mom but not me.
Third and last day of our stay, as soon as I entered the living room he lit up and exclaimed my name. We sat and talked for hours, reminiscing past events with great details, until we had to leave for the plane home.
There's no single cause. Forming memories requires many parts of the brain. Injury to or illness in any one of them can cause anteretrograde amnesia.
It's like asking "what makes a person unable to walk?" Arthritis, paralysis, muscle wasting, MS, Parkinson's, a broken bone, an amputated foot... some are temporary, some are permanent.
Walking is hard, even though most of us can do it. Forming memories is similarly hard.
This is one of the few HN articles that have profoundly moved me. Such a beautiful and simple use of technology to make a clear and big improvement in someone's life.
As a side note on his mother remembering that the tablet exists, it sounds like she has amnesia quite like Henry Molaison, a famous case study in neuropathology. He had very specific brain damage that seemingly stopped him forming new memories in the same way as OP's mother, but studies showed that he could remember some things, just not consciously. So for example he would have warm feelings towards people who'd been caring for him despite not remembering them, and would also pick up card games more and more quickly as he played them repeatedly despite saying he didn't remember the game. OP's mother remembering the tablet sounds very similar, particularly when paired with the feeling of being remembered and loved by her children.
> but studies showed that he could remember some things, just not consciously.
This reminds me of muscle memory. I can play pieces on the piano even though I don't actively remember the sheet music of them. My hands just "know" what to do. Funnily enough the moment I start actively thinking about certain passages that ability worsens by a lot.
At the start it's all about carrying around notes full of picking the relevant condition depending on the current permutation/state of the cube then following the step by step algorithms on which sequence of steps to perform for that condition.
Then you'll naturally realise that certain conditions happen a lot more than others and you'll start to remember the sequence of letters for each series of steps to perform.
Over time you'll forget the letters and your fingers will just know the sequence to perform when you perceive that condition, kind of like typing a password without thinking about it.
Eventually you'll be able to fit each condition and algorithm into your muscle memory and completely forget the series of letters that you used to memorise.
Now I can barely explain how to solve a rubik's cube in-person. I just do it.
You'll also notice this if you try to significantly slow down performing an algorithm, or try to solve a digital Rubik's cube where you have to click and drag to rotate sides.
Yes same for me on guitar. If I try to play something too slowly or if I really start thinking about what I'm doing it all falls apart.
I think that's when you really know a piece, when you can play it incredibly slowly. Paradoxically it's easy to play quickly and just let your fingers play out their muscle memory, playing something really slowly is the challenge.
I ran into this when teaching my son to tie his shoes. He now ties his shoes “upside down” from me, because I tied it from my perspective. It’s surprisingly hard to tie shoes in slow motion, it took some practice by paying attention to myself tying shoes quickly.
Now I’m wondering if you can tell a kid is from an “even” or “odd” generation by which way they tie shoes…
This Ian guy's shoe-tying tip you've linked is one of the most universally useful life-improving pieces of knowledge I have, which I try to evangelize to anyone I know who will listen. The only facts whose impact comes close are mostly household tips:
- cheap liquid dishwasher detergent including in the prewash cup instead of costly pods that deprive the prewash cycle of soap
- Put bleach in the washer's bleach dispenser and use hot water for any light sheets, no, it doesn't hurt prints or fade light colors
- cook anything you can fit in the air fryer to decrease total time ~70% vs an oven
Yes. This is the big reason why muscle memory is the worst possible memory for music. The slightest glitch leaves you completely lost if you don't have conscious knowledge of where to go next.
In psychology memory is divided up into various groupings depending on what people are interested in, e.g. explicit (remembering that Paris is the capital of France) and implicit (remembering how to ride a bike). You can further subdivide explicit into semantic (Paris is the capital of France) and episodic (events that you have experienced), and implicit into procedural (how to ride a bike) and emotional conditioning (memories of feelings). Those categories aren't related to neurophysiology though, which is where I think it gets really interesting because I doubt matches those rather Platonic categories.
I remember a lecturer in undergrad psychology talking about this in the context of walking, and my walking felt really messy for a week, like when you start to become conscious of your breathing.
Yes it is strange to practice a song one day and then come back to it again the next day. It's like meeting a new person who plays better than I did yesterday, and practice involves finding out more about this new person.
My choir director does this with new rehearsal pieces on purpose. We go through them once at the beginning and then let them "percolate" while we practice some other songs. Then we go back to them in "stabilization" before the end of the same rehearsal and they suddenly feel familiar, so we can pay better attention to things like dynamics. It's wild.
Further than just muscle memory, every cell in our bodies actually has "memories". That's why heart transplant patients can experience personality changes from the donor:
Excuse my ignorance in asking, but is this trustworthy? I'm a layperson regarding biology and I was always assumed that organs outside of the brain don't contribute to memory. At the end of the article is the statement "Data not available / No data was used for the research described in the article." Is it possible to see the data?
We know there are lots of biological mechanisms that retain state at the cellular level to put it in CS-ish terms. A fraction of these mechanisms could plausibly be transmitted outside the cell (e.g., miRNA).
These mechanisms may or may not encode memories as we typically understand them, i.e., the ability to remember an event or fact, but could very plausibly shift personality, preferences, etc.
Not to mention that most neurotransmitters are produced / collected from the gut. Many seem to be produced / used as signalling molecules by gut microbiota.
>> can experience personality changes from the donor
> organs outside of the brain don't contribute to memory
Interesting question. To start, personality typically refers to the totality of a person's behaviors, not the memories they may be able to bring forth. Behavior, esp automatic, is informed by cognitive states informed by the body.
Affect is the general sense of feeling that you experience throughout each day. It is not emotion but a much simpler feeling with two features. The first is how pleasant or unpleasant you feel, which scientists call valence. . . . The second feature of affect is how calm or agitated you feel, which is called arousal. [0]
Simple pleasant and unpleasant feelings come from an ongoing process inside you called interoception. Interoception is your brain’s representation of all sensations from your internal organs and tissues, the hormones in your blood, and your immune system.
...[M]oment-to-moment interoception infuses us with affect, which we then use as evidence about the world. People like to say that seeing is believing, but affective realism demonstrates that believing is seeing.
0. Barrett, Lisa Feldman. How Emotions Are Made: The Secret Life of the Brain (p. 72). HarperCollins. Kindle Edition.
I remember seeing a docmentary about this. There was a man who received a transplant arm from someone who died and started to exhibit the donor's manners and ended up planning an elaborate scheme to get revenge on the donor's twin brother.
> but studies showed that he could remember some things, just not consciously
I expect it is very hard to overestimate how incorrect our mental model memory and learning is. If literally everything was forgotten, then you could set up a reverse groundhog day or groundhog hour for someone, just optimize for them having a wonderful day every day. (Would still be horrible for the loved ones to be effectively disconnected from their still-living relative.) Probably there have been movies made about this.
I have no experience with this but I am sure it is nothing, nothing, nothing like that. The article says you wouldn't wish it on your worst enemy.
> Because she cannot remember things, she goes through each day in a state of low-grade anxiety about where her grown children are and whether they are all right. She feels she hasn’t heard from any of us in a long time.
To me this is not a description of someone frozen in time. To me this is a description of some horrific combination of some amount of learning or "remembering" happening, some sense of passage of time, and no episodic memories to draw on to explain any of it.
> If literally everything was forgotten, then you could set up a reverse groundhog day or groundhog hour for someone, just optimize for them having a wonderful day every day. (Would still be horrible for the loved ones to be effectively disconnected from their still-living relative.) Probably there have been movies made about this.
There is a Drew Barrymore movie Fifty first dates. And yes, it is horrible for the relatives.
Perhaps if we approach technology more from the perspective of elders, and those in need, we are going to produce much better technology application for everyone else.
There was a study that suggested that the motor cortex can remember even if short term memory conversion was destroyed.
If nothing else, myelinization counts as a form of memory. Strengthened by reuse.
I would love to know if those warm feelings are stronger with individuals who remind you of someone you used to know. “This nurse reminds me of Aunt Sarah, who was nice to me when my dog died.” And so forth.
That study is an interesting suggestion that there might be a physiological basis for the explicit / implicit distinction in terms of memory. Makes sense in many ways that some kind of memory might be embedded in the motor cortex. I wonder if the same is true for emotional memories and midbrain structures, as hinted at in your last paragraph.
I always find those non-obvious connections fascinating, like the disorders where e.g. someone can't say the word "fork" when they're looking at one despite being to describe what you use it for etc, but can immediately name it when they touch it.
I have this weird issue where about a third of people I meet for the first time swear they know me from somewhere, and it's somewhere specific that I know I've never been. My dad and brother have the same issue, and we strongly resemble each other, so I think I just have a congenitally familiar face.
I have no idea if feelings would automatically transfer to me from people with amnesia, but they certainly do for people without it, even though I don't remind them of anyone they know well enough to name.
> One small challenge was maximizing the size of the message text. Sometimes a message is just a word or two; other times it might be several sentences. A single font size can’t accommodate such a wide range of text content. I couldn’t find a pure CSS way to automatically maximize font size so that a text element with word wrapping would display without clipping.
> I ended up writing a small JavaScript function to maximize font size: it makes the text invisible (via CSS visibility: hidden), tries displaying the text at a very large size, and then tries successively smaller font sizes until it finds a size that lets all the text fit. It then makes the text visible again.
Wow -- not just for accessibility but this seems like a very useful feature to have in native CSS.
Nice find.
Overall such a heartwarming use of technology. Love.
I've been watching the evolution of the web since 1995, and I remember when css got popular in the late 90s thinking that it didn't match real-world use cases. Somehow design-by-committee took us from drawing our sites with tables in the browser's WYSIWYG editor, to not being able to center text no matter how much frontend experience we have.
Css jumped the shark and today I'd vote to scrap it entirely, which I know is a strong and controversial statement. But I grew up with Microsoft Word and Aldus PageMaker, and desktop publishing was arguably better in the 1980s than it is today. Because everyone could use it to get real work done at their family-owned small businesses, long before we had the web or tech support. Why are we writing today's interfaces in what amounts to assembly language?
Anyway, I just discovered how float is really supposed to work with shape-outside. Here's an example that can be seen by clicking the Run code snippet button:
Notice how this tiny bit of markup flows like a magazine article. Browsers should have been able to do this from day one. But they were written by unix and PC people, not human interface experts like, say, Bill Atkinson. Just look at how many years it took outline fonts to work using strokes and shadows, so early websites couldn't even place text over images without looking like Myspace.
I think that css could benefit from knowing about the dimensions of container elements, sort of like with calc() and @media queries (although @media arguably shouldn't exist, because mobile shouldn't be its own thing either). And we should have more powerful typesetting metaphors than justify. Edit: that would adjust font size automatically to fit within a container element.
IMHO the original sin of css was that it tried to give everyone a cookie cutter media-agnostic layout tool, when we'd probably be better off with the more intuitive auto flow of Qt, dropping down to a constraint matrix like Apple's Auto Layout when needed.
Disclaimer: I'm a backend developer, and watching how much frontend effort is required to accomplish so little boggles my mind.
Your comment is some interesting food for thought, but I wanted to respond to a couple statements you made:
> not being able to center text no matter how much frontend experience we have
Not being able to center things is a bit of a meme, but flexbox was introduced back in 2009 and has been supported by major browsers for quite a long time. Centering text and elements is now extremely easy.
> css could benefit from knowing about the dimensions of container elements
You're in luck! Container queries were added to CSS fairly recently:
As someone who has struggled with getting CSS to do normal layout stuff that had clear precise semantics but required weird CSS trickery, it's actually more scary than lucky that stuff like container queries have arrived 30 years after CSS was introduced.
container queries have a very obvious chicken and egg problem if used a certain way: If this container is less than 30px wide, make its content 60px wide. Otherwise make it 20px wide. Now that container exists in a quantum state of being both 30 and 60px wide. I actually haven't looked into container queries to see how they ended up dealing with this yet.
Obviously this is a very contrived example but it can also express itself in subtler ways.
CSS was doomed from the start, IMO. It was a poorly-targeted solution to a the wrong problem that could never have worked. But you don't have to use it. You can keep using tables for layout, all browsers render them well (generally faster than CSS, and with better progressive rendering too), real-world screenreaders and the like have had great support for them since before CSS emerged, there's no actual downside.
> so early websites couldn't even place text over images
I take offense at this! We weren't that stupid back then! We just put the text 5 times on the page, with position: relative, 4x in the outline color, each copy with a 1px offset in a different direction, and the final one in the text color. That trick worked with pretty early CSS.
I made a handful of corporate sites, e-commerce, CMS and even flash lol, just out of college with boring defense contractor job. I didn't have time to be picky because I had a full time job so I always worked with whatever they had and a lot of stuff was made in Dreamweaver, and even a corporate site exported from Word. The code was awful but worked everywhere. And you always had to get into code anyway, so there was no time to even think about which of the tools was best. Something was always missing in some integration so you gotta code/script. I think a lot of people made money in the last cycle tech cycles and had nothing to do but create or fund a bunch of stuff to confuse the marketplace.
Would combine quite well with `text-wrap` actually! [0] That way, the renderer knows the area it needs to fill (the implicit `max-content`, defined width/height, or flex/grid size of the container) and it knows how to best split up the text amongst the lines. Feels like the renderer would be capable of finding the optimal font size to satisfy those two constraints.
That's also been one of my biggest CSS wishlist items for years.
I've had dozens of clients complain about headings wrapping onto the next line when they add one too many letters, and ask if we can make the font size smaller without affecting the others. There are several ways to accomplish that, but they're all annoying compared to a theoretical one-line CSS solution like:
font-size: 12-18px 400px;
Or something of that nature that could hopefully do it automatically.
Really nice project. One idea for “if we fail to take down a message that no longer applies, it confuses her.” Put a start and end date/time on messages and implement in the board. That way you can pre schedule them and have them fall off automatically.
It might be nice to add default messages that can auto-populate the date so she won't notice if network goes down for awhile or someone forgets to post a message.
It (hopefully, theoretically) shouldn't make that assumption. It only relies on her apparent natural tendency to call her kids when/as she believes she hasn't heard from them in some time.
My dad didn't like poetry clock, but he does like image gen. So we got a (color) Inky Impression 7.3 and hooked it up to an RPi.
I made a basic telegram bot that you could send a verbal prompt to ("snowy day"). It would then ask which of your favorite artist styles it should create an image in. I found that presenting a list of two styles combined had cooler results. The prompt would be used to fetch a random quote on the topic, and quote and style would then be feed to stable diffusion, and maybe 30 seconds later you have fresh art and a quote on the display.
My dad then asked if we just could forward images directly there. He prefers, each day, to post an image of whatever the day is (November 13 is "World Kindness Day") and occasionally share a family photo. My mom looks forward to seeing what day he picks every day.
> There’s one other problem, though. It’s well known that AI language models like ChatGPT have a tendency to make up data (sometimes known as “hallucinations”), and it turns out that’s true even if you’re just telling the time. Roughly once every 15 minutes, says Webb, the clock will simply lie about the time just to make a certain rhyme work. “The fibbing is hilarious. Sometimes you can’t tell — it might say ‘one past two’ when it’s actually ‘two past one,’” he says. He says this will be fixable but, for now, is a fun quirk of the system. “Clockwork means you get precision drift; AI-work means you get hallucination drift.”
Pimeroni has a selection of eink displays up to 7.3" including some with various buttons and LEDs to make whatever you'd like. https://shop.pimoroni.com/search?q=inky
All boox tablet/e-readers just run Android. They can do literally anything Android can for folks asking about the loading and displaying of the web page. There are several "kiosk" apps and browsers with kiosk modes. Also fairly expensive Android automation tools.
If you're comfortable with microcontrollers (esp32/arduino), I can definitely recommend Inkplate. I found them when I was making a similar setup for my parents, and they have various sizes up to 10" and up to 6 colors they can display.
You can either just get the module, or buy with a battery and mountable case already attached. I think all of the models are also available via Digikey and Mouser if people don't trust random websites.
With an ESP32 or comparable (RPi Pico W, for example) you get MicroPython or CircuitPython support! That means a Python interpreter, drivers for popular peripherals and usually a network stack. Performance doesn’t beat a native SDK but Python is Python.
> It takes approximately 40 seconds to refresh this display
I think that would rule it out for the purpose of this project - the demo in their introduction video[0] shows that it flashes multiple colors for ages during this long refresh. I imagine that could be very confusing for someone whose short-term memory might not last that long.
Yeah, a black and white version would probably have been fine. Somewhat frustratingly they don't seem to have a 7 inch greyscale one though, only colour versions! Maybe they used to but stopped selling them?
EDIT: posted this before I noticed harpastrum's comment
This is such a wonderful story, and I'm so happy that the author found something which worked well for their mom.
> Despite her amnesia, my mom came to remember that this display exits and what it’s for. She looks forward to seeing updates from her children on it.
This is the most interesting part for me here. Brains are such wondrous things. Would be cool to know if this is a special quirk of her mom or this is something which can help others like her too.
Understanding that the condition is rare enough that most of us really don't have a need to prepare for it, I wonder if there are any habits one could cultivate that would make it easier to live with amnesia. Learning new things is my favorite past time and strongest coping mechanism, so the though of not being able to do that anymore is up there with locked-in syndrome on my list of greatest living fears.
For example, I am already in the habit of logging every phone call to any doctor's offices or important contacts as they're happening. Being able to refer back to all the notes has helped me manage a number of complex errors. I know the name of the person I spoke to, the date, and what we discussed. Any time I need to make a call about a topic or to a company, I have an easy way to pull up all the past notes.
I'd like to think if I ever got amnesia, already having this system in place would serve me really well if I couldn't learn new things. I have the old things, and the habit of referring to and adding new things to the list.
But I wonder what else would or wouldn't be useful to try to practice now?
If I'm right that this condition is like that of Henry Molaison - https://en.wikipedia.org/wiki/Henry_Molaison - then the real difficulty is that you don't remember that you have amnesia.
Well yes, but my current "write down the details of my calls and refer back to them every time" wouldn't require me to remember I had amnesia, right? For now, I do remember those past conversations, but if I stopped remembering them, having them up on my screen in the side panel of my note-taking app would still make them available to me if I didn't.
Sign language and brail come to mind as useful in this regard (if not for you, then for a loved one).
As for amnesia, it seems like a habit of making notes and seeking out to read your own notes would be useful. However, the trend in technology to constantly change behaviour, appearance, and functionality makes anything digital a barrier. Manual notes are also susceptible to being impossible for ageing people to make. So it's really hard to think of something.
I have visited the thought of what it’d be like to have amnesia like this many times throughout my entire life. I am sure reality is nothing like my thoughts, but in fantasy land it’s just interesting to imagine picking up a note in my own hand writing saying “you have amnesia, everything is okay, everyone is well and happy, some bathroom humor, go watch YouTube and chill”
Does anyone know if "Start its web browser and have that browser display a designated start page." is specific thing for this tablet or if that is "normal" in android?
I want to do something similar for anki cards I'm struggling with, and I dunno if I'm in for a world of pain. I was considering https://shop.boox.com/products/go6 for my needs as it's a bit cheaper.
I don't know the specific mechanism used in the OP, but android has several mechanisms that can be used to start an app on reboot. Take a look around a Google search, I'm sure you'll find what you need
a commercial product along the same lines is KOMP https://komp.family/en/. We had it to communicate with our elderly grandparents until they died. Its a bit like a senior accessible social network feed for the family, including its dynamics, because the app shows what is being shown to everybody else of the family. In that regard it's a disadvantage you have some of the same dynamics going on. You dont only communicate to the grandparents, but also to the (extended) family.
I don't know if it's because we are conditioned by our interaction with TV and mobiles, but active LCD screens feel like they are screaming for our attention and an always on display will mostly be a distraction.
E-ink displays don't have this, they just blend in.
I love these kinds of projects. Congratulations to the OP.
Unrelated, but does anyone know a good TV remote for elders? I'd like something like a Stream Deck with big buttons for things like :
* Turn it on/off
* Switch to TV channel 315
* Switch to TV channel 517
* Play Planet Earth on Netflix
* Play Young Sheldon on Netflix
My grandparents are 92 and 97 and even big remotes aren't cutting it. Not only that, but I'd like for them to be able to use ondemand video platforms, not only random TV channels.
To control the TV itself, it seems a RPi or ESP32 with an IR led is enough, but to put something to play on Netflix is surprisingly difficult. I'm able to control a Fire Stick using remote adb commands, but not sure how reliable it is. I'd love to find something like this off the shelf.
Technology is great, but it's not made for elders. It frustrates them (and me), and they end up feeling stupid, which angers me.
I am sure someone else must have done this, but I couldn't find it anywhere.
Avoid toggling buttons. Have a separate button for on, and a second button for off. Idempotent all the way.
I remember my great aunt repeatedly mashing the on/off button insisting that the TV was not working, when it never had a chance to bring up the picture.
Is their problem the size (big buttons) or the UI complexity the buttons control (trying to navigate on Netflix is a PITA compared to hitting a preset channel button)?
On the former I had luck with one of those jumbo remotes that just has a few buttons (channel up/down, volume up/down, power, mute) and separately programming the TV to only have the channels they cared about in the list. When it came to smart apps it just became impossible to try to fix via the remote as the remote wasn't really the problem.
This matches my experience. Sadly the way tech has evolved has made a lot of entertainment totally unaccessible for a lot folks. It needn't be that way. Seniors would be happy to just have a button thst played a netflix title randomly, but somehow that is unattainable.
It’s a shame the UX around voice navigation is often so poor.
My mum just recently switched TV provider and while the new box has quite capable voice search (including both regular TV channels and integrated streaming services), it always takes her about 3 attempts to get it.
The “correct” way is to just press the button and say what you want without waiting. But she needs some sort of visual indication that it’s listening to know she’s “doing it right”, which takes just long enough to appear on screen that it’s either stopped listening and started trying to process background noise, or she presses the button again thinking she didn’t get it.
My sister has a disability making independent living a challenge. Although I have 0 technical background, I need to start thinking and brainstorming in this manner.
I encouraged my mother, who had short-term memory issues _and_ dementia to write things down. It backfired. She's write something down, like the fact that she got a call from her gardener, then obsess over it. She'd open the book over and over and then talk about the "odd" call she got from her gardener for weeks! We had to take the book and write things like "This issue has been resolved" under the things she wrote down.
I think an e-ink that we control remotely might work for her, too. We can put an item up there and then remove it as soon as it's not relevant anymore so she won't keep re-reading it and obsessing over it.
This is the kind of feedback I was looking for. These are not conditions that we are familiar with - and so the user interface for such things is not necesarily obvious. For example:
- I would expect that their and your mom did not forget how to use a web browser when they acquired short term memory issues. So a web browser interface (links, scrolling, buttons) might still be fine.
- I was surprised that in the posters' display, the date / time of each msg was not shown.
- I was susprised that there is no reminder "Mum, since an operation, you rarely form short term memories." Wouldn't it make sense that even that is not forming a memory?
- As you mention, remove the item or mention how it was resolved.
Love this! A couple years ago I had to do similar for my grandma (94 at the time) who was losing her hearing as well as short term memory loss. Was surprised how few off the shelf options there were.
Had to write a medium article with exact instructions for how to use it otherwise she was very skeptical of using it. The only issue was that she would sometimes read aloud which would enter her into a feedback loop lol.
The author mentions needing a small storage service and paying for JSONStorage. In fact, when I've needed this sort of thing in the past, Google Sheets is an amazing tiny database for projects. It has pretty generous API rate limits and it's convenient to be able to manage your DB live in a spreadsheet. In fact, even levels.fyi got away with a Google Forms / Google Sheets backend for a long time[1].
This is so great, I love it. I don't have amnesia but I have lots of trouble remembering what I was going to work on next and used an e-paper display[1] to help with that. My code is a lot simpler (as the display only has an ESP32 and that isn't particularly powerful) but it can fetch a PNG image and it can display it, so my "protocol" (which I'm hesitant to call it that) is it opens a URL named 'inkstatus.html' and looks for a link of the form "http://example.com/image.png" (sadly I can't code quote that here but you get the idea, a URL pointing to image.png from the same server. It then reads that image and displays it, if the image is the same one it displayed the previous time it just does nothing and goes back to sleep for 10 seconds.
That way, all of the rendering is done on the web server (by a cron script in my case and LaTex) and display doesn't have any fiddly html/css issues it is just putting up a full size png image which was part of the library that the Soldered guys provided.
Based on the referenced article I'm going to see if I can replicate this for my Dad who is at the age where he doesn't remember things.
I think you should also checkout TRMNL. Being engineers ourself security/privacy is of atmost concern, and we follow a similar architecture mentioned above. You could create a private plugin and send in data in the form of REST APIs[1]. You could also use your own webserver by hacking the firmware[2]
NB: As the article mentions concerns about burn-in, this doesn't seem to be an issue for e-ink devices.
Many ship with a standard image or set of images displayed when powered off or suspended. Presumably those display for long periods of time. My experience over ~3 years with a similar Onyx BOOX device has been that those images don't burn in at all.
What is experienced is temporary ghosting which varies by display mode (these can be set either globally or per application), when partial refreshes are made. The solution is to do a full refresh every so often, for which there are a number of built-in settings, or which can be triggered manually on the tablet.
For either the author here or others looking to implement similar projects, you can very likely safely skip any consideration of burn-in, though if your interest is in crystal-clear display, full refresh can be used. Particularly when display updates are infrequent, say, < 1/minute, or any longer period.
>Since the physical device was satisfactory, the next step was writing a simple website that could drive the display.
>A Compose page my siblings and I write messages and save them to be displayed.
Is there a risk of a malicious actor discovering the website and writing in their own messages? I would think building user authentication in to the MomBoard website might be a bit heavyweight. Whats the best way to do this?
When you have a site with a fixed, tiny amount of users, I'd opt for HTTP basic auth (via HTTPS). Whether you're using nginx, Traefik, Caddy, etc..., it's very easy to setup. If you're using something like Cloudflare Pages, I would guess you could setup a worker to handle it for you (though I'm not familiar enough with workers to be sure).
When I watched the film Memento, I found myself thinking 'holy shit, I'm not quite far away enough from this...'. No tattoos yet, but one could write a book on the stcky pads I've laying around.
As a bit of a luddite, e-ink is one of the few modern wizbangs I'm enamored with. It's so damn nice I take it as an inside woosh joke that it isn't everywhere and available without pawning my organs.
Does any commercial version of this exist? Using an existing tablet makes the DIY aspect a little less but then you have to roll your own site as well.
Well, for the Dutch market there's Luna: https://www.nedap-luna.com/. This has the advantage of being integrated fully into a formal care structure and of several years of research in how to best present information specifically for patients with cognitive issues.
I have to deal with bouts with amnesia myself due to a dissociative disorder - this would be a really good appliance just to be able to see reminders to myself and also reminders from friends - relationships are really difficult to keep up with when its out of sight out of mind for anyone.
I'm working on a personal dashboard right now so I can have one space to leave notes for myself - I have the problem of not being able to consistently use the same tools since there are so many to reach out (social media, sms, chat apps, trello, physical notepads, .txt files). I frequently just fully forget that I've been taking notes every day, and where they're at. Building routines is, as one can imagine, really difficult. An app requires that I'm looking at my phone and can prioritize a notification. All the apps together are just too much to be able to prioritize, and I find myself hunting through all the apps for reminders or to try to ground myself.
That's the exact reason we built TRMNL, because your phone is consistently trying to seek your attention (hence distraction). TRMNL helps build personal dashboard without necessarily creating chaos. We built handful of native integrations[1], but you can completely hack it and create your own dashboard with simple HTML content[2].
This is a wonderful project. Many thanks to Jan for sharing it.
Separately, regarding dementia, it is both less and more complicated than many commenters suggest.
From UCSF Neuroscience’s excellent Memory and Aging Center resources:
“Dementia is a general term for any disease that causes a change in memory and/or thinking skills that is severe enough to impair a person’s daily functioning… There are many different types of dementia… Most types of dementia cause a gradual worsening of symptoms over the course of years due to progressive damage to nerve cells in the brain caused by the underlying disease process…” [0]
Even more briefly: dementia is an umbrella term, many diseases can cause dementia, and those diseases may or may not be progressive.
I love this. I wonder whether it would be useful to add a small indication of how roughly how long ago a message was written. For example, the first message might say 'this afternoon' or 'yesterday'. If it was written this afternoon, I know the dinner it's referring to is coming up, and wasn't yesterday.
This is awesome and I am happy to read that she was able to remember the device and asks if things have been added to it. My parents have just retired and I wonder if something like this would be advantageous to introduce prior to signs of memory loss. My grandmother had Alzheimers and while it is different than the amnesia that OP references, her memories were lost in reverse chronological order (can't remember where her keys are, but could remember where her last job was, later could not remember that last job, but could remember her first job, etc). So introducing this prior to those recent memory lapses could help solidify that device in my parents head so that they could benefit from it even if they do start to exhibit that behavior.
My mom is in an assisted living center. The floor above hers is reserved for memory care residents. I'd love to see how to incorporate this into their affairs.
> I ended up writing a small JavaScript function to maximize font size: it makes the text invisible (via CSS visibility: hidden), tries displaying the text at a very large size, and then tries successively smaller font sizes until it finds a size that lets all the text fit. It then makes the text visible again.
That would be a good application for dichotomic search if performance was ever a problem (I doubt it though).
More generally, having elements on a grid of different sizes should hopefully be much more easy once CSS masonry grid is available.
Dealing with dementia in the elderly is difficult enough, but it has a progression and you can feel how close you're getting to the end. Having to provide a similar level of care to someone who may live on for decades seems like a living nightmare. My heart goes out to this man and any others with similar burdens.
I've been wanting to use an Inkplate 10 for my own mom, who doesn't have amnesia but is deaf. But, like the Boox that TFA uses, it has a 10" display which is too small imho. It would be great if they would finally start making bigger ones. 14" (A4 or letter size) is about as small as I'd want if I had my way.
I quickly searched for Google Calendar and nothing came up.
A good 'trick' would be to have a Gmail account (calendar, and all), share the password with the 'inner circle' and anyone can post anything they want and it will appear on the google calendar, in "Agenda" mode
Would it be possible to use a device like Google Nest Hub 2. for the similar purpose? It is quite a bit cheaper, I have an old mother which still is clear in the head but often have problems with her mobile phone. Would also be easier for us to share pictures of her grandchildren and such.
Some time ago I considered doing something similar for my parents. They're both fine, but since I live in another country, it could be a creative gift to send them messages on special occasions. I would use an e-ink display attached to an ESP8266 or similar though.
A little off topic, but on the subject of E-Ink, here is an analysis of a Kindle display with optical coherence tomography images: https://arxiv.org/abs/1605.05174
This is a very interesting idea. My father has dementia. I'm not sure this would really work in this use case. He wouldn't remember to look at the display. Like I said, I'm not sure about this. It might be worth trying though.
"To medical professionals her condition looks a lot like dementia — amnesia is a common symptom of dementia — but she doesn’t have dementia. One difference is that (as I understand it) dementia is a progressive disease, while this amnesia is stable."
Dementia is a multi-system failure, memory + CPU.
Amnesia, on its own, is a failure of memory, the CPU is working fine.
Medical amateurs, like tech amateurs, may be confused by the difference.
Tech professionals, like medical professionals, ought not to be.
Since we do not yet have the capability to switch out human memory 'cards', making use of the CPU to compensate for the faulty memory card is a great hack.
There is a reason I check out Hacker News on an almost daily basis. This is it.
Glad I went on HN today. My grandma has dementia and I've been leaving paper reminders around the house. Maybe I should try something like this. Wishing you and your family the best.
I have always dreamt of something like this to connect with aging loved ones.
I would love something that they could also listen to with a big button to play recent messages.
Interesting. Waveshare makes this recommendation across their product line, and from what I can glean from google, their displays really do develop permanent artifacts if they're not refreshed. I've never seen another epaper company say this, and anecdotally I've seen ereaders that held the same image for months or years work perfectly fine, even with no power for refreshes. I don't know why there would be a difference.
It might be worthwhile to look at how an LLM might assist someone with this condition. A lot of the persistence hacks used on LLM chatbots are addressing the lack of retained memories outside of the context window, so maybe something like RAG could help your mom live a less limited life, or reduce some of the burden on you or other caretakers.
Brilliant use of tech, I'm happy when I see someone turn their nerd-powers to things that unabashedly make life better. Good work!
What a beautiful use of technology to uphold someone's personhood, and let them know they are loved, despite (and with regard to) a profound injury.
This reminds me of a desire I've had for a long time: a simple, wall-mountable eInk device that could be configured with a URL (+wifi creds) and render a markdown file, refreshing once every hour or so. It would be so useful for so many applications – I'm a parish priest and so I could use it to let people know what events are on, if a service is cancelled, the current prayer list, ... the applications would be endless. I'd definitely pay a couple of hundred dollars per device for a solid version of such a thing, if it could be mounted and then recharged every month or two.
I'm a backer, but this would probably fit your bill https://www.kickstarter.com/projects/usetrmnl/trmnl-the-e-in...
I wanted the same kind of general eink device, but this is also supposedly super hackable!
hackable indeed :) https://docs.usetrmnl.com
no longer a Kickstarter btw, shipping same-day now (see homepage)
For anyone else that followed the "buy a device" link on the docs page, and found yourself on the (ended) Kickstarter page, editing the URL to https://usetrmnl.com/ works :)
(This is fantastic. Thank you for sharing about it!)
> Most IoT products support SSH-ing directly into peripheral devices. We've heard too many horror stories about how this can go wrong, and decided to invert the paradigm.
> Your TRMNL device pings our server, never the other way around.
> Each request made to our /api/display endpoint includes only the minimum details needed to support customers -- an API key, device mac address, firmware version, battery voltage, and wifi signal strength.
Super hackable but it pings their hosted server and nothing else?! Is there a way to run your own server?
we're adding more docs on running your own server soon, which will include 1-click deploy starter projects that Just Work.
if you think about it, we are incentivized to do this. no subscription fees means the more you ping our server, the lower our margin. but for now we're wrapping up fulfilling all pre-orders, scaling, etc typical new product issues.
even without BYOS (bring your own server) docs however, it's already possible to point TRMNL to your own stack if you 1) fork our OSS firmware + b) have some experience with e-ink.
Can you clarify what the difference between the Developer Edition and normal edition are? It's not clear from the checkout flow if this is required in order to create plugins, and is not mentioned anywhere in the docs.
hardware is the same, Developer edition vs Regular is a permission-only change that lets you build custom plugins and a few other things.
brief post here outlining more of the benefits: https://usetrmnl.com/blog/developer-edition
need to update docs too, thanks for the call out. we were writing docs before this piece was ironed out.
OK, thank you for the reply. The product looks great. I will roll the dice seeing the OSS firmware. Thanks!
appreciate your support!
The docs aren't super encouraging either. https://docs.usetrmnl.com/go/diy/byod-s
> Purchase a TRMNL from our home page: https://usetrmnl.com
> Then follow the instructions on BYOD/S > Server.
> More TBD.
They seem to have the api base url hardcoded in their firmware[1]. The repo seems to have pretty clear instructions for compiling and flashing modified firmware. From there, it's just a matter of writing a decent server to implement the calls documented in BYOD/S[2] and Private API.[3]
[1]: https://github.com/usetrmnl/firmware/blob/e3db8c37990c2333ec...
[2]: https://docs.usetrmnl.com/go/diy/byod-s
[3]: https://docs.usetrmnl.com/go/private-api/introduction
Nice, thank you for investigating.
Anyway you could check on mine? I've yet to receive it, and I'm ready to start hacking!
i imagine we aren't at your cohort yet but email team@usetrmnl.com and we'll get yours out today, regardless. tiny thank you for the shout here!
Life happened, and I realized I would not be in town over holiday! Thanks for the offer though. I can't wait to get it and write some code for it!
I will be buying one of these, looks super rad! Nice work!
There is also this bigger display:
https://www.kickstarter.com/projects/invisible-computers/e-p...
I have the earlier, smaller model of this, and it works well.
I've backed the new, bigger display, which should be shipping soon.
Seems very nice buuuut why did they put the USB-C on the back if it is supposed to be wall mounted and needs to be charged every couple of months? Why not on one side??
Solution: mount it with magnets.
assuming your eink display would be on the same LAN as some always-on PC...
Voila.Any time you have anything to say, just edit the `index.html` file and the eink display will update.
No need for fancy subscription services or kickstarter projects or crowdfunding... just... batteries included python.
Thanks for the inspiration. I did essentially this as a project with the kids today, though I used js to allow updating by anyone in the family.
https://github.com/TrisSherliker/FridgeChalkboard/tree/main
Heyyy I'm internet famous! :blush: Thanks for mentioning me, hope it works well for you.
I'm developing something so that everyone can do this easily[0]. It's a plugin based presentation software. Real time connection through websocket.
So all you need to do is create a project and use a plugin(existing or your own) to generate your view. The plugin is flexible, so it could be a custom UI or uploading a HTML file for example.
Then, you can open a link on any machine like the e-ink display.
Open-source and self-hostable. But you can also use the online version I'm hosting.
It's still very new so things will break but I'm already using it in church and other meetings.
[0] https://theopenpresenter.com
Having done this, you will also most likely want to setup a javascript timer that also triggers a refresh in case the meta refresh fails. And a weekly reboot of the machine in case there is a memory leak or some other issue.
The primary issue I would imagine, would be not that a meta refresh fails to happen, rather, that any type of full refresh is attempted during a momentary 'blip' of the local network, leaving it showing a "cannot find server" type of error. To achieve the safest persistence of the refresh loop, it would probably make more sense to have the refresh function via
1. AJAX request for itself, with a timed retry in the case of any failure (optional: During this time, add a visible indicator that you're having connectivity issue) 2. Extract the contents of the <body> tag of the fetched HTML 3. Set the innerHTML of the <body> tag of the DOM to the fetched body.
To avoid memory leaks I'd still be tempted to also try to implement a "safe-ish refresh" that checks for a successful response and quickly fires off a location.reload() on like a daily basis.
Yep, exactly r:refreshing failing. If you are using a full featured browser you can also use a browser extension that forces the refresh.
Additionally for a raspberry pi, you can use a watchdog timer service that checks to see if the rpi has frozen, and reboots it.
That sounds like defensive programming; what makes you think meta refresh will not trigger always? If you can demonstrate it, it'd be worth filing a bug report with the respective browser(s). Same with the reboot, although the user does not control every software in the e-reader. That said, e-readers and tablets are designed to be always-on, so memory leaks should be rare nowadays.
I have setup a raspberry PI dashboard before and run into these exact issues. They are not defensive or pre-emptive. An e-reader will probably not have the same issues, just sharing my experience.
* Browser runs out of memory or has other issue and stops refreshing.
* Wifi connection drops and browser displays an error page and stops executing your refreshes. The power-saving options on the RPIs wifi caused me quite a bit of grief before I disabled them.
* Raspberry Pi crashes with kernel errors due to cheap SD card, underpowered USB power supply, or something else.
I ran into these issues one by one over a few months and fixed each one as I ran into it. What I ended up with was:
* Browser set to run at OS startup displaying my page.
* That page having a meta refresh tag, and javascript code to reload the page periodically.
* A browser extension to automatically reload the page as well if both of those failed.
* A watchdog daemon that detects when the RPI has frozen and reboots it.
* A cron job that reboots periodically.
With all of those my dashboard would run for months without any issues or interruptions. Just sharing so others can be aware of potential issues.
There's nothing wrong with defensive programming, especially if it is supposed to run on a device where you don't have easy and/or immidiate access in case something stops working.
We had to configure a daily reboot for a raspberry PI that just displayed a web page with the current status of emergency calls for local first responders on a mounted TV screen.
Purpose: if you come into the building to fetch the car with the medical equipment, you could see at a glance how many people acknowledged the alert and would arrive shortly etc. Sadly, the system tended to loose its WIFI connection and then the reloaded web page would display a network error. And since the web page was a 3rd party product, we could not hack the Javascript.
I tried to do pretty much this on a Kobo reader and discovered the Kobo browser doesn't support javascript. :|
It sounds like there’s a lot more edge case complexity to this than the GP originally thought.
Like most DIY tinkerer solutions, unfortunately, which is why people like paying money for productised solutions - the time it takes to debug and troubleshoot home made solutions is often prohibitive for a lot of people who aren’t techheads.
This is both fair and obvious... but at the same time, the nits folk are bringing up are not fleshed out.
and are both super weird and frankly unfair to consider as criticisms of the original solution.... In short - if our parish priest above sees the original post, I'd suggest he give it a go. It's an hour to set up and won't cost him or his parish anything (aside from buying the eink display ofc).
If it turns out that the DIY solution is insufficient, or his parish is wealthy enough to spend money on a thing like this, great, then upgrade to that.
Kobo readers are fairly non-rando, they're the second most popular eInk readers after the Kindle I think. I agree that lack of Javascript support is not a blocking issue on the use case though (although it does make it a little more annoying).
Luckily the original solution doesn't involve javascript...
Would an old rooted Nook Simple Touch suffice for your use case? They're very cheap these days and you've direct access to some early version of Android on them
If you're comfortable with microcontrollers (esp32/arduino), I can definitely recommend Inkplate. I found them when I was making a similar setup for my parents, and they have various sizes up to 10" and up to 6 colors they can display.
You can either just get the module, or buy with a battery and mountable case already attached. I think all of the models are also available via Digikey and Mouser if people don't trust random websites.
https://soldered.com/categories/inkplate/
Seconded. I matted and framed one InkPlate 10 and hung it on our wall, then wrote a simple "show the next three days from everyone in the family's Google Calendars" image creation script and it's been wonderful.
I looked into inkplate. I have no experience at all with microcontrollers. How difficult is it to build something like you did?
Just an aside, but “parish priest” must surely be the opposite of “software developer” on the Hacker News Table of Occupational Frequency. Neat!
The principal of my son’s former school was a Sister of St Joseph, and a huge HN fan.
More amazing was how creative the sisters were in managing themselves with technology. Many decisions are made by votes, done in real time globally! Religious people get short shrift.
Reminds me of the monks in the third season of Babylon 5. Who says you can't both be an IT person and a cleric?
Given their history as archivers it seems like a natural complement, really
And scientists. Gregor Mendel comes to mind.
https://en.m.wikipedia.org/wiki/Gregor_Mendel
Lay preacher here. There are dozens of us, dozens!
That episode with the reformed murderer was especially hard...what a brilliant show
To save a few moments stalking his profile yourself: https://news.ycombinator.com/item?id=38762380
TLDR: 20 years as SWE, then used his skills for his calling.
You may be interested in https://github.com/aceinnolab/Inkycal, it looks like it's out of stock at the moment but they have pre-made devices or you can make your own with a list of parts.
That is super cool! I might need to build one of those. My family needs a way to keep the fridge calendar up to date with our digital calendar.
for your family cal, check out TRMNL. can go on a fridge w/ magnets: https://usetrmnl.com
(disclaimer, i'm the founder)
My fridge isn't magnetic. A lot of modern fridges aren't.
Might be a neat idea to offer a magnetic mount for it, like a flexible flat magnetic board shaped to fit the TRMNL with a sticky backing so you can attach it somewhere and then use that to attach the TRMNL (your site doesn't seem to say anything about being magnetic so I'm guessing you have to attach magnets to the TRMNL too though?).
For that matter, the site doesn't offer any information about mounting it at all. Looking at the disassembly animation I see what looks like a hole to hang it on a nail, but it might be nice to put this info at least in the FAQ section if nowhere else (that does say it can be "hung on a wall" but no details).
thanks for the feedback, will add more detail to our website specs + docs.
we included magnets for VIP backers on our crowdfunding campaign and may start selling them again. device has a mounting hole on the back for nails / hooks, we’ll probably release mechanical specs so people can 3D print or otherwise fabricate their own mounts. for example some people want to mash up an array of them. but until then, adhesive magnets work great for the fridge use case.
You can buy sheets of rubbery material with sticky backing and metal powder embedded in the rubber. One supplier is WarMag - people use them as a surface for putting magnetic-based figures on.
I came into possession of several sheafs of the A4-sized ones, which now serve as "generic surprisingly heavy objects".
I've been looking for something like this! I wasn't expecting to buy stuff from the comments on HN...
Are there any plans to have a version without the battery? It looks exactly like what I've been looking for otherwise.
Also, what country are the orders shipped from? US?
Internally we are debating on releasing a Hackable DIY kit. Feel feel to send a message to support@usetrmnl.com.
It's shipped from USA.
curious what your use case is without a battery. currently you could keep it plugged in, are you wnting NFC-powered etc?
Nothing spectacular, I just want to have a display by the door that shows various things I'd like to check on before leaving, like: which windows are open, outside temperatures, etc.
I don't want a battery because:
- although every X months is quite ok, I don't want the hassle of remembering to charge it (first world problems, I know)
- but I also have a fear of leaving devices with a battery plugged in for a long time / having to monitor for battery swelling or other abnormalities
I already have a classic battery-powered display which shows temperature info from some sensors and it's really convenient, but annoying when the battery is dead right when you need the info. Even if that only happens every X months.
A GP in this thread linked to Inkycal, which is a RPi0W based solution, no batteries:
https://github.com/aceinnolab/Inkycal
You might want to update this image on your homepage:
https://usetrmnl.com/assets/section2-3-d6887b41db12ad0659992...
as the first character, タ (ta), is missing from the display, making it read "(a)minaru".
great catch, thank you! will do
Wow, that looks super interesting!
Just one comment:
> Developer Edition > Ability to build custom plugins for yourself and others. Unlocks our API. > $20
Isn't it in your interest that developers unlock the potential of your hardware in some new ways? Charging for it seems... weird.
I mean the price is not that high, it just doesn't feel right to pay for access to API. My 2 cents.
My most "starred" GitHub repo is probably SystemSix [1], an e-ink display masquerading as a little 68K Mac.
[1] https://github.com/EngineersNeedArt/SystemSix
If you have a hacker’s soul, an old Kindle, a jailbreak, and a Python installation, anything becomes possible. I’m working on something like that (though I hadn’t thought about markdown!). The Kindle is a particularly fun device once it’s hacked!
I looked into this a while back, but can you post some notes on jailbreak kindles? Aren't there certain models of Kindle that can be had very cheaply. That are possibly locked or have some dead component, but the screen can be used with a jailbreak? They were like only ~$10 on ebay.
https://crowdfund.news/crowdfunding-project/blotch-the-world... funded recently and there are others with similar if perhaps less slick implementations on the software side.
I've seen these in a few restaurants as menus listing the special of the day. They were mounted elegantly in some stone mounting so didn't give the ipad mcdonalds touchscreen feel. They just looked printed but on closer inspection were e-ink
I'm in, can we crowdfund something like this?
If eInk wasn't a monopoly this would be 100% a project I'd love to do
we crowdfunded one this summer and now we ship same-day. :) https://usetrmnl.com
Not super relevant but your site is super janky for me (chrome, ubuntu). I get a scrollbar for the second part of your site, which then captures scrolling so if my cursor is in the middle of the page and I go down then up I am stuck.
https://streamable.com/sm0oek
Doesn't seem like you ship to my region, cool product nevertheless
ah really?? feel free to email us (team@usetrmnl.com). we've been granted a bunch of EC licenses lately but maybe missed a few country check boxes on our store.
There has been a number of these on HN. Other features too. The first one I remember seeing was MagicMirror (not e-ink) ages ago.
How would you want to host or update the markdown file? Sending an email for instance? Or run your own host?
I wish this had come up on HN (or I had had that idea myself) some years ago when my mother suffered from that same cruel condition, for the last four years of her life. With her body, all her older memories and her considerable intelligence largely intact, she had multiple moments of clarity every single day, in which she fully realized the terrible and hopeless situation she was in. But of course, within seconds this thought and any decisions she might have derived from it dissolved in the black hole of her defective short-term memory. So she would not even have had the ability to take her own life to end this if she wished so. My brother and I tried many things to improve her life somewhat, only very few of those were actually a bit succesful. Two of them were digital gadgets, which we selected to provide some benefit without or at least with just very simple interactions: The best one was an LCD "picture frame" the only feature of which was to show an infinite loop of family photos stored on its SD card - she came to really like it and have it switched on quite consistently. The second one was an MP3 speaker which had a few hours of her favorite music on an SD card as well, and which could be used largely like a radio, just by pressing its play/stop button and volume buttons. This latter one she managed to enjoy at least from time to time. Best wishes to the author and his mom, and everyone in a similar situation.
My wife acquired anterograde amnesia after a car accident. This device may or may not have worked for her: she would probably have discovered the device anew every time (as in, every 10 minutes or so), although she would probably be pleased each time.
Thankfully she fully recovered after a few weeks. It takes a lot of patience to deal with someone like that, and you could tell it frequently caused a lot of frustration on her part. Every 10 minutes or so in fact.
That illustrates the difference between anterograde amnesia and dementia. Dementia is a general degradation of the brain that includes memory but you can have amnesia with an otherwise perfectly functional brain. A patient with dementia would never text her kids as in OP's case.
Glad that your wife got over it.
My grandpa had dementia. Last time me and my mom flew over to visit he didn't recognize either of us the first day. He didn't even remember having a daughter. Second day he vaguely recognized my mom but not me.
Third and last day of our stay, as soon as I entered the living room he lit up and exclaimed my name. We sat and talked for hours, reminiscing past events with great details, until we had to leave for the plane home.
Glad she recovered!
Yeah, given OP's post, I didn't think this user's comment had a happy ending. That's great.
Yeah, should've lead differently.
i thought "acquired" was a good clue
What exactly causes anterograde amnesia? Why is it temporary for some people and permanent for others?
There's no single cause. Forming memories requires many parts of the brain. Injury to or illness in any one of them can cause anteretrograde amnesia.
It's like asking "what makes a person unable to walk?" Arthritis, paralysis, muscle wasting, MS, Parkinson's, a broken bone, an amputated foot... some are temporary, some are permanent.
Walking is hard, even though most of us can do it. Forming memories is similarly hard.
This is one of the few HN articles that have profoundly moved me. Such a beautiful and simple use of technology to make a clear and big improvement in someone's life.
As a side note on his mother remembering that the tablet exists, it sounds like she has amnesia quite like Henry Molaison, a famous case study in neuropathology. He had very specific brain damage that seemingly stopped him forming new memories in the same way as OP's mother, but studies showed that he could remember some things, just not consciously. So for example he would have warm feelings towards people who'd been caring for him despite not remembering them, and would also pick up card games more and more quickly as he played them repeatedly despite saying he didn't remember the game. OP's mother remembering the tablet sounds very similar, particularly when paired with the feeling of being remembered and loved by her children.
> but studies showed that he could remember some things, just not consciously.
This reminds me of muscle memory. I can play pieces on the piano even though I don't actively remember the sheet music of them. My hands just "know" what to do. Funnily enough the moment I start actively thinking about certain passages that ability worsens by a lot.
It's exactly the same when solving Rubik's Cubes.
At the start it's all about carrying around notes full of picking the relevant condition depending on the current permutation/state of the cube then following the step by step algorithms on which sequence of steps to perform for that condition.
Then you'll naturally realise that certain conditions happen a lot more than others and you'll start to remember the sequence of letters for each series of steps to perform.
Over time you'll forget the letters and your fingers will just know the sequence to perform when you perceive that condition, kind of like typing a password without thinking about it.
Eventually you'll be able to fit each condition and algorithm into your muscle memory and completely forget the series of letters that you used to memorise.
Now I can barely explain how to solve a rubik's cube in-person. I just do it.
You'll also notice this if you try to significantly slow down performing an algorithm, or try to solve a digital Rubik's cube where you have to click and drag to rotate sides.
Yes same for me on guitar. If I try to play something too slowly or if I really start thinking about what I'm doing it all falls apart.
I think that's when you really know a piece, when you can play it incredibly slowly. Paradoxically it's easy to play quickly and just let your fingers play out their muscle memory, playing something really slowly is the challenge.
I ran into this when teaching my son to tie his shoes. He now ties his shoes “upside down” from me, because I tied it from my perspective. It’s surprisingly hard to tie shoes in slow motion, it took some practice by paying attention to myself tying shoes quickly.
Now I’m wondering if you can tell a kid is from an “even” or “odd” generation by which way they tie shoes…
My kid just figured it out, so generation parity can break
It's like UK coins the new monarch face stamped on it faces the opposite direction compared to the previous one.
They often teach it in schools nowadays because busy parents will often not teach their children.
I taught it by standing (kneeling) behind, so my left was my son’s left. Didn’t occur it could be done the other way.
However my wife, who’s 3 weeks younger than me, ties her shoes in a completely different way to me, which I believe is a “bunny ears” method.
Give the large variety of ways to tie shoes, there’s no way you could infer anything other than the way they are doing it now.
There actually is a right way and wrong way to tie your shoes.
Even with the bunny ear method right bunny ear over left is wrong, it comes undone much easier than left bunny ear over right.
If you're like me there's a Google rabbit hole to disappear into for 1/2 hour, completely forget about, and carry on doing it completely wrong.
Reminds me of https://www.fieggen.com/shoelace/grannyknot.htm
I wonder if what you describe is kind of the reason for this.
This Ian guy's shoe-tying tip you've linked is one of the most universally useful life-improving pieces of knowledge I have, which I try to evangelize to anyone I know who will listen. The only facts whose impact comes close are mostly household tips:
- cheap liquid dishwasher detergent including in the prewash cup instead of costly pods that deprive the prewash cycle of soap
- Put bleach in the washer's bleach dispenser and use hot water for any light sheets, no, it doesn't hurt prints or fade light colors
- cook anything you can fit in the air fryer to decrease total time ~70% vs an oven
> cook anything you can fit in the air fryer
Why would I want to cook my milkshake?
My dad's left-handed and I'm right-handed, so I got to learn to tie in mirror image. That was helpful.
Yes. This is the big reason why muscle memory is the worst possible memory for music. The slightest glitch leaves you completely lost if you don't have conscious knowledge of where to go next.
Passwords also work this way.
Yep. I couldn’t write down my work one without a keyboard.
In psychology memory is divided up into various groupings depending on what people are interested in, e.g. explicit (remembering that Paris is the capital of France) and implicit (remembering how to ride a bike). You can further subdivide explicit into semantic (Paris is the capital of France) and episodic (events that you have experienced), and implicit into procedural (how to ride a bike) and emotional conditioning (memories of feelings). Those categories aren't related to neurophysiology though, which is where I think it gets really interesting because I doubt matches those rather Platonic categories.
I remember a lecturer in undergrad psychology talking about this in the context of walking, and my walking felt really messy for a week, like when you start to become conscious of your breathing.
> My hands just "know" what to do. Funnily enough the moment I start actively thinking about certain passages that ability worsens by a lot.
At least playing is mostly an entertainment. Passwords is where the shit happens. I recently lost a 20y old account thanks to this.
Yes it is strange to practice a song one day and then come back to it again the next day. It's like meeting a new person who plays better than I did yesterday, and practice involves finding out more about this new person.
My choir director does this with new rehearsal pieces on purpose. We go through them once at the beginning and then let them "percolate" while we practice some other songs. Then we go back to them in "stabilization" before the end of the same rehearsal and they suddenly feel familiar, so we can pay better attention to things like dynamics. It's wild.
Further than just muscle memory, every cell in our bodies actually has "memories". That's why heart transplant patients can experience personality changes from the donor:
https://www.sciencedirect.com/science/article/abs/pii/S03069...
Excuse my ignorance in asking, but is this trustworthy? I'm a layperson regarding biology and I was always assumed that organs outside of the brain don't contribute to memory. At the end of the article is the statement "Data not available / No data was used for the research described in the article." Is it possible to see the data?
Reddit is telling me to not accept it at face value - https://old.reddit.com/r/research/comments/1bh2jmv/this_is_h...
We know there are lots of biological mechanisms that retain state at the cellular level to put it in CS-ish terms. A fraction of these mechanisms could plausibly be transmitted outside the cell (e.g., miRNA).
These mechanisms may or may not encode memories as we typically understand them, i.e., the ability to remember an event or fact, but could very plausibly shift personality, preferences, etc.
Not to mention that most neurotransmitters are produced / collected from the gut. Many seem to be produced / used as signalling molecules by gut microbiota.
>> can experience personality changes from the donor
> organs outside of the brain don't contribute to memory
Interesting question. To start, personality typically refers to the totality of a person's behaviors, not the memories they may be able to bring forth. Behavior, esp automatic, is informed by cognitive states informed by the body.
Affect is the general sense of feeling that you experience throughout each day. It is not emotion but a much simpler feeling with two features. The first is how pleasant or unpleasant you feel, which scientists call valence. . . . The second feature of affect is how calm or agitated you feel, which is called arousal. [0]
Simple pleasant and unpleasant feelings come from an ongoing process inside you called interoception. Interoception is your brain’s representation of all sensations from your internal organs and tissues, the hormones in your blood, and your immune system.
...[M]oment-to-moment interoception infuses us with affect, which we then use as evidence about the world. People like to say that seeing is believing, but affective realism demonstrates that believing is seeing.
0. Barrett, Lisa Feldman. How Emotions Are Made: The Secret Life of the Brain (p. 72). HarperCollins. Kindle Edition.
1. ibid (p. 56).
2. ibid (pp. 76-77)
I remember seeing a docmentary about this. There was a man who received a transplant arm from someone who died and started to exhibit the donor's manners and ended up planning an elaborate scheme to get revenge on the donor's twin brother.
> but studies showed that he could remember some things, just not consciously
I expect it is very hard to overestimate how incorrect our mental model memory and learning is. If literally everything was forgotten, then you could set up a reverse groundhog day or groundhog hour for someone, just optimize for them having a wonderful day every day. (Would still be horrible for the loved ones to be effectively disconnected from their still-living relative.) Probably there have been movies made about this.
I have no experience with this but I am sure it is nothing, nothing, nothing like that. The article says you wouldn't wish it on your worst enemy.
> Because she cannot remember things, she goes through each day in a state of low-grade anxiety about where her grown children are and whether they are all right. She feels she hasn’t heard from any of us in a long time.
To me this is not a description of someone frozen in time. To me this is a description of some horrific combination of some amount of learning or "remembering" happening, some sense of passage of time, and no episodic memories to draw on to explain any of it.
> If literally everything was forgotten, then you could set up a reverse groundhog day or groundhog hour for someone, just optimize for them having a wonderful day every day. (Would still be horrible for the loved ones to be effectively disconnected from their still-living relative.) Probably there have been movies made about this.
There is a Drew Barrymore movie Fifty first dates. And yes, it is horrible for the relatives.
Perhaps if we approach technology more from the perspective of elders, and those in need, we are going to produce much better technology application for everyone else.
There was a study that suggested that the motor cortex can remember even if short term memory conversion was destroyed.
If nothing else, myelinization counts as a form of memory. Strengthened by reuse.
I would love to know if those warm feelings are stronger with individuals who remind you of someone you used to know. “This nurse reminds me of Aunt Sarah, who was nice to me when my dog died.” And so forth.
That study is an interesting suggestion that there might be a physiological basis for the explicit / implicit distinction in terms of memory. Makes sense in many ways that some kind of memory might be embedded in the motor cortex. I wonder if the same is true for emotional memories and midbrain structures, as hinted at in your last paragraph.
I always find those non-obvious connections fascinating, like the disorders where e.g. someone can't say the word "fork" when they're looking at one despite being to describe what you use it for etc, but can immediately name it when they touch it.
Edit: got a link? I'd be interested to read that.
I thought we discussed it here a few years ago but neither algolia nor DDG are giving me hits. I’m probably using the wrong search terms.
I have a relative with anterograde amnesia from a stroke, so that story got passed on to my father when it happened. 8 years ago perhaps?
https://en.wikipedia.org/wiki/Henry_Molaison
2002 I think is a little earlier than the research I was thinking of but that’s essentially the same conclusion.
OK, thanks for trying - will try a bit of searching myself.
I have this weird issue where about a third of people I meet for the first time swear they know me from somewhere, and it's somewhere specific that I know I've never been. My dad and brother have the same issue, and we strongly resemble each other, so I think I just have a congenitally familiar face.
I have no idea if feelings would automatically transfer to me from people with amnesia, but they certainly do for people without it, even though I don't remind them of anyone they know well enough to name.
Absolutely. I was reading this and knew I'd be bookmarking it in case I ever need it.
It's even aesthetically pleasing! What mom wouldn't find this charming?
Yup. Really moved me.
> One small challenge was maximizing the size of the message text. Sometimes a message is just a word or two; other times it might be several sentences. A single font size can’t accommodate such a wide range of text content. I couldn’t find a pure CSS way to automatically maximize font size so that a text element with word wrapping would display without clipping.
> I ended up writing a small JavaScript function to maximize font size: it makes the text invisible (via CSS visibility: hidden), tries displaying the text at a very large size, and then tries successively smaller font sizes until it finds a size that lets all the text fit. It then makes the text visible again.
Wow -- not just for accessibility but this seems like a very useful feature to have in native CSS.
Nice find.
Overall such a heartwarming use of technology. Love.
I've been watching the evolution of the web since 1995, and I remember when css got popular in the late 90s thinking that it didn't match real-world use cases. Somehow design-by-committee took us from drawing our sites with tables in the browser's WYSIWYG editor, to not being able to center text no matter how much frontend experience we have.
Css jumped the shark and today I'd vote to scrap it entirely, which I know is a strong and controversial statement. But I grew up with Microsoft Word and Aldus PageMaker, and desktop publishing was arguably better in the 1980s than it is today. Because everyone could use it to get real work done at their family-owned small businesses, long before we had the web or tech support. Why are we writing today's interfaces in what amounts to assembly language?
Anyway, I just discovered how float is really supposed to work with shape-outside. Here's an example that can be seen by clicking the Run code snippet button:
https://stackoverflow.com/a/33953666
Notice how this tiny bit of markup flows like a magazine article. Browsers should have been able to do this from day one. But they were written by unix and PC people, not human interface experts like, say, Bill Atkinson. Just look at how many years it took outline fonts to work using strokes and shadows, so early websites couldn't even place text over images without looking like Myspace.
I think that css could benefit from knowing about the dimensions of container elements, sort of like with calc() and @media queries (although @media arguably shouldn't exist, because mobile shouldn't be its own thing either). And we should have more powerful typesetting metaphors than justify. Edit: that would adjust font size automatically to fit within a container element.
IMHO the original sin of css was that it tried to give everyone a cookie cutter media-agnostic layout tool, when we'd probably be better off with the more intuitive auto flow of Qt, dropping down to a constraint matrix like Apple's Auto Layout when needed.
Disclaimer: I'm a backend developer, and watching how much frontend effort is required to accomplish so little boggles my mind.
Your comment is some interesting food for thought, but I wanted to respond to a couple statements you made:
> not being able to center text no matter how much frontend experience we have
Not being able to center things is a bit of a meme, but flexbox was introduced back in 2009 and has been supported by major browsers for quite a long time. Centering text and elements is now extremely easy.
> css could benefit from knowing about the dimensions of container elements
You're in luck! Container queries were added to CSS fairly recently:
https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_contain...
As someone who has struggled with getting CSS to do normal layout stuff that had clear precise semantics but required weird CSS trickery, it's actually more scary than lucky that stuff like container queries have arrived 30 years after CSS was introduced.
I agree with GP that CSS should be scrapped.
container queries have a very obvious chicken and egg problem if used a certain way: If this container is less than 30px wide, make its content 60px wide. Otherwise make it 20px wide. Now that container exists in a quantum state of being both 30 and 60px wide. I actually haven't looked into container queries to see how they ended up dealing with this yet.
Obviously this is a very contrived example but it can also express itself in subtler ways.
Comeau has a piece on that. Another property to constrain it is the solution.
https://www.joshwcomeau.com/css/container-queries-introducti...
CSS was doomed from the start, IMO. It was a poorly-targeted solution to a the wrong problem that could never have worked. But you don't have to use it. You can keep using tables for layout, all browsers render them well (generally faster than CSS, and with better progressive rendering too), real-world screenreaders and the like have had great support for them since before CSS emerged, there's no actual downside.
> so early websites couldn't even place text over images
I take offense at this! We weren't that stupid back then! We just put the text 5 times on the page, with position: relative, 4x in the outline color, each copy with a 1px offset in a different direction, and the final one in the text color. That trick worked with pretty early CSS.
I made a handful of corporate sites, e-commerce, CMS and even flash lol, just out of college with boring defense contractor job. I didn't have time to be picky because I had a full time job so I always worked with whatever they had and a lot of stuff was made in Dreamweaver, and even a corporate site exported from Word. The code was awful but worked everywhere. And you always had to get into code anyway, so there was no time to even think about which of the tools was best. Something was always missing in some integration so you gotta code/script. I think a lot of people made money in the last cycle tech cycles and had nothing to do but create or fund a bunch of stuff to confuse the marketplace.
How the hell is this not already a CSS feature?
or maybe justi asked this on bluesky (https://bsky.app/profile/swyx.io/post/3lb2x53wuwc2y) and immiediately got this https://kizu.dev/fit-to-width/ which means theres no technical barrier now, we just need the powers that be to prioritize it
anyone with influence on the CSSWG?
Would combine quite well with `text-wrap` actually! [0] That way, the renderer knows the area it needs to fill (the implicit `max-content`, defined width/height, or flex/grid size of the container) and it knows how to best split up the text amongst the lines. Feels like the renderer would be capable of finding the optimal font size to satisfy those two constraints.
[0] https://developer.mozilla.org/en-US/docs/Web/CSS/text-wrap
That's also been one of my biggest CSS wishlist items for years.
I've had dozens of clients complain about headings wrapping onto the next line when they add one too many letters, and ask if we can make the font size smaller without affecting the others. There are several ways to accomplish that, but they're all annoying compared to a theoretical one-line CSS solution like:
font-size: 12-18px 400px;
Or something of that nature that could hopefully do it automatically.
There is pure CSS solution: https://kizu.dev/fit-to-width/
Really nice project. One idea for “if we fail to take down a message that no longer applies, it confuses her.” Put a start and end date/time on messages and implement in the board. That way you can pre schedule them and have them fall off automatically.
It might be nice to add default messages that can auto-populate the date so she won't notice if network goes down for awhile or someone forgets to post a message.
Nah, at that point, just let mom call.
This assumes the mother can form the new memory required to remember to call in that situation, which she by definition of the disease can't.
It (hopefully, theoretically) shouldn't make that assumption. It only relies on her apparent natural tendency to call her kids when/as she believes she hasn't heard from them in some time.
Agreed, or an expiry timer (e.g. this message expires in 12 hours).
Would also be good to display the current date alongside the messages' date
It looks like it's at the top of the screen
The current date - yes, but messages don't have a date assigned to them
I made an eink rpi display for staying in touch with my parents, inspired by the poetry clock (https://www.theverge.com/23669343/ai-clock-chatgpt-poems-rhy...).
My dad didn't like poetry clock, but he does like image gen. So we got a (color) Inky Impression 7.3 and hooked it up to an RPi.
I made a basic telegram bot that you could send a verbal prompt to ("snowy day"). It would then ask which of your favorite artist styles it should create an image in. I found that presenting a list of two styles combined had cooler results. The prompt would be used to fetch a random quote on the topic, and quote and style would then be feed to stable diffusion, and maybe 30 seconds later you have fresh art and a quote on the display.
My dad then asked if we just could forward images directly there. He prefers, each day, to post an image of whatever the day is (November 13 is "World Kindness Day") and occasionally share a family photo. My mom looks forward to seeing what day he picks every day.
> inspired by the poetry clock (https://www.theverge.com/23669343/ai-clock-chatgpt-poems-rhy...).
That's fun. Although, from the article:
> There’s one other problem, though. It’s well known that AI language models like ChatGPT have a tendency to make up data (sometimes known as “hallucinations”), and it turns out that’s true even if you’re just telling the time. Roughly once every 15 minutes, says Webb, the clock will simply lie about the time just to make a certain rhyme work. “The fibbing is hilarious. Sometimes you can’t tell — it might say ‘one past two’ when it’s actually ‘two past one,’” he says. He says this will be fixable but, for now, is a fun quirk of the system. “Clockwork means you get precision drift; AI-work means you get hallucination drift.”
;)
Dementia is a progressive multi-system failure (CPU, RAM, SSD, Motherboard)
Anterograde Amnesia, on its own, is a failure to write to the SSD.
Medical amateurs, like tech amateurs, might struggle to differentiate between the two.
Medical professionals, like tech professionals, should not.
When it is not possible to upgrade the SSD, using the CPU and the RAM to compensate for the faulty SSD is an excellent hack.
There is a reason I check out Hacker News on an almost daily basis, this is it.
Although this is a PC-centric way of explaining the difference between Dementia and Anterograde Amnesia, I really like it nonetheless :)
Pimeroni has a selection of eink displays up to 7.3" including some with various buttons and LEDs to make whatever you'd like. https://shop.pimoroni.com/search?q=inky
All boox tablet/e-readers just run Android. They can do literally anything Android can for folks asking about the loading and displaying of the web page. There are several "kiosk" apps and browsers with kiosk modes. Also fairly expensive Android automation tools.
If you're comfortable with microcontrollers (esp32/arduino), I can definitely recommend Inkplate. I found them when I was making a similar setup for my parents, and they have various sizes up to 10" and up to 6 colors they can display.
You can either just get the module, or buy with a battery and mountable case already attached. I think all of the models are also available via Digikey and Mouser if people don't trust random websites.
https://soldered.com/categories/inkplate/
I've never used esp32/arduino. How does it compare writing some low key Python on RPi and blitting an image to the display?
With an ESP32 or comparable (RPi Pico W, for example) you get MicroPython or CircuitPython support! That means a Python interpreter, drivers for popular peripherals and usually a network stack. Performance doesn’t beat a native SDK but Python is Python.
That's cool, but:
> It takes approximately 40 seconds to refresh this display
I think that would rule it out for the purpose of this project - the demo in their introduction video[0] shows that it flashes multiple colors for ages during this long refresh. I imagine that could be very confusing for someone whose short-term memory might not last that long.
[0] https://www.youtube.com/watch?v=TluopgSoSWY&t=500s
The colour screen have a much slower refresh than the others. The greyscale one I have takes less than a second with minimal flashing.
Yeah, a black and white version would probably have been fine. Somewhat frustratingly they don't seem to have a 7 inch greyscale one though, only colour versions! Maybe they used to but stopped selling them?
EDIT: posted this before I noticed harpastrum's comment
This is such a wonderful story, and I'm so happy that the author found something which worked well for their mom.
> Despite her amnesia, my mom came to remember that this display exits and what it’s for. She looks forward to seeing updates from her children on it.
This is the most interesting part for me here. Brains are such wondrous things. Would be cool to know if this is a special quirk of her mom or this is something which can help others like her too.
Somebody else posted Henry Molaison [1] and there is a link to Repetition priming [2]. Seems some memories are stored in other locations.
[1] https://en.wikipedia.org/wiki/Henry_Molaison [2] https://en.wikipedia.org/wiki/Repetition_priming
Understanding that the condition is rare enough that most of us really don't have a need to prepare for it, I wonder if there are any habits one could cultivate that would make it easier to live with amnesia. Learning new things is my favorite past time and strongest coping mechanism, so the though of not being able to do that anymore is up there with locked-in syndrome on my list of greatest living fears.
For example, I am already in the habit of logging every phone call to any doctor's offices or important contacts as they're happening. Being able to refer back to all the notes has helped me manage a number of complex errors. I know the name of the person I spoke to, the date, and what we discussed. Any time I need to make a call about a topic or to a company, I have an easy way to pull up all the past notes.
I'd like to think if I ever got amnesia, already having this system in place would serve me really well if I couldn't learn new things. I have the old things, and the habit of referring to and adding new things to the list.
But I wonder what else would or wouldn't be useful to try to practice now?
If I'm right that this condition is like that of Henry Molaison - https://en.wikipedia.org/wiki/Henry_Molaison - then the real difficulty is that you don't remember that you have amnesia.
Well yes, but my current "write down the details of my calls and refer back to them every time" wouldn't require me to remember I had amnesia, right? For now, I do remember those past conversations, but if I stopped remembering them, having them up on my screen in the side panel of my note-taking app would still make them available to me if I didn't.
That's the kind of idea I'm looking for.
Sign language and brail come to mind as useful in this regard (if not for you, then for a loved one).
As for amnesia, it seems like a habit of making notes and seeking out to read your own notes would be useful. However, the trend in technology to constantly change behaviour, appearance, and functionality makes anything digital a barrier. Manual notes are also susceptible to being impossible for ageing people to make. So it's really hard to think of something.
In what ways would sign language and Braille be helpful? Just to have them at the ready in case I were to lose my ability to hear/see?
A simple battery replaceable pocket voice recorder is often very much overlooked.
I have visited the thought of what it’d be like to have amnesia like this many times throughout my entire life. I am sure reality is nothing like my thoughts, but in fantasy land it’s just interesting to imagine picking up a note in my own hand writing saying “you have amnesia, everything is okay, everyone is well and happy, some bathroom humor, go watch YouTube and chill”
Does anyone know if "Start its web browser and have that browser display a designated start page." is specific thing for this tablet or if that is "normal" in android?
I want to do something similar for anki cards I'm struggling with, and I dunno if I'm in for a world of pain. I was considering https://shop.boox.com/products/go6 for my needs as it's a bit cheaper.
I've used https://www.fully-kiosk.com/ on Android tablets before (as meeting room status screens) and that's worked really well
When starting Chromium you can pass a `--kiosk` option with one (or more ) URLs of the pages you want to display
I don't know the specific mechanism used in the OP, but android has several mechanisms that can be used to start an app on reboot. Take a look around a Google search, I'm sure you'll find what you need
a commercial product along the same lines is KOMP https://komp.family/en/. We had it to communicate with our elderly grandparents until they died. Its a bit like a senior accessible social network feed for the family, including its dynamics, because the app shows what is being shown to everybody else of the family. In that regard it's a disadvantage you have some of the same dynamics going on. You dont only communicate to the grandparents, but also to the (extended) family.
I don't know if it's because we are conditioned by our interaction with TV and mobiles, but active LCD screens feel like they are screaming for our attention and an always on display will mostly be a distraction.
E-ink displays don't have this, they just blend in.
20£ per month is a pretty steep subscription
I love these kinds of projects. Congratulations to the OP.
Unrelated, but does anyone know a good TV remote for elders? I'd like something like a Stream Deck with big buttons for things like :
* Turn it on/off
* Switch to TV channel 315
* Switch to TV channel 517
* Play Planet Earth on Netflix
* Play Young Sheldon on Netflix
My grandparents are 92 and 97 and even big remotes aren't cutting it. Not only that, but I'd like for them to be able to use ondemand video platforms, not only random TV channels.
To control the TV itself, it seems a RPi or ESP32 with an IR led is enough, but to put something to play on Netflix is surprisingly difficult. I'm able to control a Fire Stick using remote adb commands, but not sure how reliable it is. I'd love to find something like this off the shelf.
Technology is great, but it's not made for elders. It frustrates them (and me), and they end up feeling stupid, which angers me.
I am sure someone else must have done this, but I couldn't find it anywhere.
Avoid toggling buttons. Have a separate button for on, and a second button for off. Idempotent all the way.
I remember my great aunt repeatedly mashing the on/off button insisting that the TV was not working, when it never had a chance to bring up the picture.
Is their problem the size (big buttons) or the UI complexity the buttons control (trying to navigate on Netflix is a PITA compared to hitting a preset channel button)?
On the former I had luck with one of those jumbo remotes that just has a few buttons (channel up/down, volume up/down, power, mute) and separately programming the TV to only have the channels they cared about in the list. When it came to smart apps it just became impossible to try to fix via the remote as the remote wasn't really the problem.
It's the UI, especially for Netflix or other streaming apps. I want something that is totally foolproof. Just click and it starts.
This matches my experience. Sadly the way tech has evolved has made a lot of entertainment totally unaccessible for a lot folks. It needn't be that way. Seniors would be happy to just have a button thst played a netflix title randomly, but somehow that is unattainable.
It’s a shame the UX around voice navigation is often so poor.
My mum just recently switched TV provider and while the new box has quite capable voice search (including both regular TV channels and integrated streaming services), it always takes her about 3 attempts to get it.
The “correct” way is to just press the button and say what you want without waiting. But she needs some sort of visual indication that it’s listening to know she’s “doing it right”, which takes just long enough to appear on screen that it’s either stopped listening and started trying to process background noise, or she presses the button again thinking she didn’t get it.
I would like to second this. I tried a number of options with my grandpa and they always failed for one reason or another.
If anyone has a solution in this space, I would be very interested.
There are some cheap android phones which come with an IR sensor. But the app for such functionality needs to be custom made.
a person with dementia absolutely will not be able to keep a phone charged
What a lovely read and solution.
My sister has a disability making independent living a challenge. Although I have 0 technical background, I need to start thinking and brainstorming in this manner.
I encouraged my mother, who had short-term memory issues _and_ dementia to write things down. It backfired. She's write something down, like the fact that she got a call from her gardener, then obsess over it. She'd open the book over and over and then talk about the "odd" call she got from her gardener for weeks! We had to take the book and write things like "This issue has been resolved" under the things she wrote down.
I think an e-ink that we control remotely might work for her, too. We can put an item up there and then remove it as soon as it's not relevant anymore so she won't keep re-reading it and obsessing over it.
This is the kind of feedback I was looking for. These are not conditions that we are familiar with - and so the user interface for such things is not necesarily obvious. For example:
- I would expect that their and your mom did not forget how to use a web browser when they acquired short term memory issues. So a web browser interface (links, scrolling, buttons) might still be fine.
- I was surprised that in the posters' display, the date / time of each msg was not shown.
- I was susprised that there is no reminder "Mum, since an operation, you rarely form short term memories." Wouldn't it make sense that even that is not forming a memory?
- As you mention, remove the item or mention how it was resolved.
Love this! A couple years ago I had to do similar for my grandma (94 at the time) who was losing her hearing as well as short term memory loss. Was surprised how few off the shelf options there were.
Had to write a medium article with exact instructions for how to use it otherwise she was very skeptical of using it. The only issue was that she would sometimes read aloud which would enter her into a feedback loop lol.
https://medium.com/@admangan2018/how-to-utilize-the-transcri...
The author mentions needing a small storage service and paying for JSONStorage. In fact, when I've needed this sort of thing in the past, Google Sheets is an amazing tiny database for projects. It has pretty generous API rate limits and it's convenient to be able to manage your DB live in a spreadsheet. In fact, even levels.fyi got away with a Google Forms / Google Sheets backend for a long time[1].
1. https://www.levels.fyi/blog/scaling-to-millions-with-google-...
This is so great, I love it. I don't have amnesia but I have lots of trouble remembering what I was going to work on next and used an e-paper display[1] to help with that. My code is a lot simpler (as the display only has an ESP32 and that isn't particularly powerful) but it can fetch a PNG image and it can display it, so my "protocol" (which I'm hesitant to call it that) is it opens a URL named 'inkstatus.html' and looks for a link of the form "http://example.com/image.png" (sadly I can't code quote that here but you get the idea, a URL pointing to image.png from the same server. It then reads that image and displays it, if the image is the same one it displayed the previous time it just does nothing and goes back to sleep for 10 seconds.
That way, all of the rendering is done on the web server (by a cron script in my case and LaTex) and display doesn't have any fiddly html/css issues it is just putting up a full size png image which was part of the library that the Soldered guys provided.
Based on the referenced article I'm going to see if I can replicate this for my Dad who is at the age where he doesn't remember things.
[1] https://soldered.com/product/inkplate-10-9-7-e-paper-board-c...
I think you should also checkout TRMNL. Being engineers ourself security/privacy is of atmost concern, and we follow a similar architecture mentioned above. You could create a private plugin and send in data in the form of REST APIs[1]. You could also use your own webserver by hacking the firmware[2]
[1]-https://help.usetrmnl.com/en/articles/9510536-private-plugin...
[2]-https://github.com/usetrmnl/firmware/blob/main/include/confi...
That is an excellent pointer. Thanks!
NB: As the article mentions concerns about burn-in, this doesn't seem to be an issue for e-ink devices.
Many ship with a standard image or set of images displayed when powered off or suspended. Presumably those display for long periods of time. My experience over ~3 years with a similar Onyx BOOX device has been that those images don't burn in at all.
What is experienced is temporary ghosting which varies by display mode (these can be set either globally or per application), when partial refreshes are made. The solution is to do a full refresh every so often, for which there are a number of built-in settings, or which can be triggered manually on the tablet.
For either the author here or others looking to implement similar projects, you can very likely safely skip any consideration of burn-in, though if your interest is in crystal-clear display, full refresh can be used. Particularly when display updates are infrequent, say, < 1/minute, or any longer period.
lovely note thank you. i checked out Boox and it seems to all be sold out - any ideas how to get one (or a good enough alternative) today?
Sorry, no idea what Onyx's inventory status / fulfillment time is.
I'd bought mine a few years back through their online store. Arrived in a few days as I recall.
<https://onyxboox.com/product#actual>
Onyx refresh their offerings frequently, though older models typically still sell for a while. You might be between offerings.
You can also likely buy used from online sales sites (e.g., Craigslist, eBay).
>Since the physical device was satisfactory, the next step was writing a simple website that could drive the display.
>A Compose page my siblings and I write messages and save them to be displayed.
Is there a risk of a malicious actor discovering the website and writing in their own messages? I would think building user authentication in to the MomBoard website might be a bit heavyweight. Whats the best way to do this?
When you have a site with a fixed, tiny amount of users, I'd opt for HTTP basic auth (via HTTPS). Whether you're using nginx, Traefik, Caddy, etc..., it's very easy to setup. If you're using something like Cloudflare Pages, I would guess you could setup a worker to handle it for you (though I'm not familiar enough with workers to be sure).
You're right; its easy enough with Cloudflare Workers. They have a sample that is pretty decent:
https://developers.cloudflare.com/workers/examples/basic-aut...
When I watched the film Memento, I found myself thinking 'holy shit, I'm not quite far away enough from this...'. No tattoos yet, but one could write a book on the stcky pads I've laying around.
As a bit of a luddite, e-ink is one of the few modern wizbangs I'm enamored with. It's so damn nice I take it as an inside woosh joke that it isn't everywhere and available without pawning my organs.
Does any commercial version of this exist? Using an existing tablet makes the DIY aspect a little less but then you have to roll your own site as well.
You should check out usetrmnl.com. It's commercially available and has 50+ native plugins and many community driven recipes[1].
Disclosure: I'm from the TRMNL team.
[1] - https://github.com/usetrmnl/plugins
https://www.invisible-computers.com/
The creator is on HN too.
Well, for the Dutch market there's Luna: https://www.nedap-luna.com/. This has the advantage of being integrated fully into a formal care structure and of several years of research in how to best present information specifically for patients with cognitive issues.
This is great. His one concern of remembering to remove things could be done with optional expiry.
Meeting for dinner tonight? Set the message to expire after today.
I have to deal with bouts with amnesia myself due to a dissociative disorder - this would be a really good appliance just to be able to see reminders to myself and also reminders from friends - relationships are really difficult to keep up with when its out of sight out of mind for anyone.
I'm working on a personal dashboard right now so I can have one space to leave notes for myself - I have the problem of not being able to consistently use the same tools since there are so many to reach out (social media, sms, chat apps, trello, physical notepads, .txt files). I frequently just fully forget that I've been taking notes every day, and where they're at. Building routines is, as one can imagine, really difficult. An app requires that I'm looking at my phone and can prioritize a notification. All the apps together are just too much to be able to prioritize, and I find myself hunting through all the apps for reminders or to try to ground myself.
That's the exact reason we built TRMNL, because your phone is consistently trying to seek your attention (hence distraction). TRMNL helps build personal dashboard without necessarily creating chaos. We built handful of native integrations[1], but you can completely hack it and create your own dashboard with simple HTML content[2].
[1] https://usetrmnl.com/integrations [2] https://usetrmnl.com/framework
This is a wonderful project. Many thanks to Jan for sharing it.
Separately, regarding dementia, it is both less and more complicated than many commenters suggest.
From UCSF Neuroscience’s excellent Memory and Aging Center resources:
“Dementia is a general term for any disease that causes a change in memory and/or thinking skills that is severe enough to impair a person’s daily functioning… There are many different types of dementia… Most types of dementia cause a gradual worsening of symptoms over the course of years due to progressive damage to nerve cells in the brain caused by the underlying disease process…” [0]
Even more briefly: dementia is an umbrella term, many diseases can cause dementia, and those diseases may or may not be progressive.
0: https://memory.ucsf.edu/what-dementia
I love this. I wonder whether it would be useful to add a small indication of how roughly how long ago a message was written. For example, the first message might say 'this afternoon' or 'yesterday'. If it was written this afternoon, I know the dinner it's referring to is coming up, and wasn't yesterday.
I feel this could be a product that would see some success in the retail market.
It solved a personal problem.
Amazing mission behind the tech.
Could solve a myriad of issues for other families. This part is unproven, but that's why it would be cool to see the author release it as a product!
Could start by simply putting up a payment page and making them bespoke as orders start coming in.
This is awesome and I am happy to read that she was able to remember the device and asks if things have been added to it. My parents have just retired and I wonder if something like this would be advantageous to introduce prior to signs of memory loss. My grandmother had Alzheimers and while it is different than the amnesia that OP references, her memories were lost in reverse chronological order (can't remember where her keys are, but could remember where her last job was, later could not remember that last job, but could remember her first job, etc). So introducing this prior to those recent memory lapses could help solidify that device in my parents head so that they could benefit from it even if they do start to exhibit that behavior.
My mom is in an assisted living center. The floor above hers is reserved for memory care residents. I'd love to see how to incorporate this into their affairs.
Cool use of tech!
> I ended up writing a small JavaScript function to maximize font size: it makes the text invisible (via CSS visibility: hidden), tries displaying the text at a very large size, and then tries successively smaller font sizes until it finds a size that lets all the text fit. It then makes the text visible again.
That would be a good application for dichotomic search if performance was ever a problem (I doubt it though).
More generally, having elements on a grid of different sizes should hopefully be much more easy once CSS masonry grid is available.
Dealing with dementia in the elderly is difficult enough, but it has a progression and you can feel how close you're getting to the end. Having to provide a similar level of care to someone who may live on for decades seems like a living nightmare. My heart goes out to this man and any others with similar burdens.
btw. you should write date of message on each message, on top of current date
Why downvotes? For someone with amnesia it is not clear what date message was written if someone has written "today"..
I've been wanting to use an Inkplate 10 for my own mom, who doesn't have amnesia but is deaf. But, like the Boox that TFA uses, it has a 10" display which is too small imho. It would be great if they would finally start making bigger ones. 14" (A4 or letter size) is about as small as I'd want if I had my way.
I quickly searched for Google Calendar and nothing came up.
A good 'trick' would be to have a Gmail account (calendar, and all), share the password with the 'inner circle' and anyone can post anything they want and it will appear on the google calendar, in "Agenda" mode
Would it be possible to use a device like Google Nest Hub 2. for the similar purpose? It is quite a bit cheaper, I have an old mother which still is clear in the head but often have problems with her mobile phone. Would also be easier for us to share pictures of her grandchildren and such.
Some time ago I considered doing something similar for my parents. They're both fine, but since I live in another country, it could be a creative gift to send them messages on special occasions. I would use an e-ink display attached to an ESP8266 or similar though.
A little off topic, but on the subject of E-Ink, here is an analysis of a Kindle display with optical coherence tomography images: https://arxiv.org/abs/1605.05174
This is a very interesting idea. My father has dementia. I'm not sure this would really work in this use case. He wouldn't remember to look at the display. Like I said, I'm not sure about this. It might be worth trying though.
"To medical professionals her condition looks a lot like dementia — amnesia is a common symptom of dementia — but she doesn’t have dementia. One difference is that (as I understand it) dementia is a progressive disease, while this amnesia is stable."
Dementia is a multi-system failure, memory + CPU. Amnesia, on its own, is a failure of memory, the CPU is working fine. Medical amateurs, like tech amateurs, may be confused by the difference. Tech professionals, like medical professionals, ought not to be.
Since we do not yet have the capability to switch out human memory 'cards', making use of the CPU to compensate for the faulty memory card is a great hack.
There is a reason I check out Hacker News on an almost daily basis. This is it.
> we have to be careful to keep it up to date; if we fail to take down a message that no longer applies, it confuses her.
Could tweak the UI to add an expiration date on the initial input screen, with a sensible default (maybe 2 weeks?)
Flashback to 50 First Dates. Drew Barrymore is a national treasure.
This product is pretty slick. The e-ink looks very natural. Anyone compared this to a Kindle or reMarkable Paper Pro?
This gives me hope in humanity. This is using tech to humanize.
Glad I went on HN today. My grandma has dementia and I've been leaving paper reminders around the house. Maybe I should try something like this. Wishing you and your family the best.
This is what Meta Portal could have been. It's not about going high tech and fancy UI. It's the human kindness that makes tech beautiful.
Cool! Btw, I make this: https://framed.news/ framed e-ink news display
I have always dreamt of something like this to connect with aging loved ones. I would love something that they could also listen to with a big button to play recent messages.
Would this work for someone with dementia as well?
It really is the small things, fun being able to use hacky superpowers like this. makes me want to call my mom :)
This is beautiful in ways i can't put into words. Sometimes you find an article that just hits man
"I was concerned about the possibility of e-ink burn-in"
Happily, e-ink displays don't suffer from burn-in.
Had the same thought but then I remembered coming across this.
Can't say if it is due to burn-in but some manufacturers do recommend refreshing the display image periodically like every 24 hours [1].
See precautions #4
https://www.waveshare.com/wiki/4.2inch_e-Paper_Module_(B)_Ma...
Interesting. Waveshare makes this recommendation across their product line, and from what I can glean from google, their displays really do develop permanent artifacts if they're not refreshed. I've never seen another epaper company say this, and anecdotally I've seen ereaders that held the same image for months or years work perfectly fine, even with no power for refreshes. I don't know why there would be a difference.
That is beautiful and heartwarming, technology really can make good sometimes
This is a great idea. thanks for sharing it. I might need this for myself someday.
Priceless! Well done Jan. Thank you for sharing this amazing project.
HN does not usually make me cry!
Respect
Hello mom.
Wonderful idea
It might be worthwhile to look at how an LLM might assist someone with this condition. A lot of the persistence hacks used on LLM chatbots are addressing the lack of retained memories outside of the context window, so maybe something like RAG could help your mom live a less limited life, or reduce some of the burden on you or other caretakers.
Brilliant use of tech, I'm happy when I see someone turn their nerd-powers to things that unabashedly make life better. Good work!
Not a good idea for someone with memory loss to use an LLM, especially when they are prone to hallucination!