17 comments

  • jeroenhd 3 minutes ago

    I don't really get the iPad + RPi combo. I see it a lot, but why not simply run a web server on the iPad itself? Do that many people use the Pi's GPIO pins in combination with web dev?

  • MBCook an hour ago

    Not what the author is doing here, but you can also connect them over standard Ethernet. Any standard USB-C to Ethernet adapter will work with the iPad automatically.

    Came as a surprise to me a few years ago when I first ran a that it.

    Makes sense, I had simply never considered it.

    • walterbell an hour ago

      It's so convenient to have USB-c power, audio, storage & network on a single cable. iPadOS can't detect headphones that are unplugged from 3.5mm audio jack on a dock, so it's better to connect headphones to dock via USB, to enable quick switch to speakers. There are right-angle and U/180 degree USB-c adapters to keep the cable out of the way.

      RPi 400 keyboard + iPad VNC also works, or HDMI-to-USBc via iPad app, https://www.reddit.com/r/ipad/comments/utvfcu/my_ipad_mini_r...

  • ssmmiles 3 hours ago

    This is thanks to USB On-The-Go support, really handy feature - can also use it to get a serial connection: https://trac.gateworks.com/wiki/linux/OTG

    • leetrout 8 minutes ago

      This is core to how pikvm / tinypilot work as well!

  • terhechte 2 hours ago

    This is kind of the best way to do software development using an iPad. You can SSH or VNC into the Pi and then use all the tools available to the system. I've thought more than once about gluing a Pi to the back of my iPad so I can just take one device on longer travels and not have to take the iPad and the Mac (reason for the bringing the iPad is that all big streaming services typically have an iPad app that allows downloads, but no macOS app. I like having downloads for no / bad wifi situations).

    • skydhash 2 hours ago

      While I like the iPad's screen (pretty great for reading pdfs), I'd much prefer something like the Starlite [0] for a more versatile usage. The iPad has nice app, but they're too constrained both by the platform and Apple's policy.

      [0]: https://us.starlabs.systems/pages/starlite

      • wpm an hour ago

        This looks great but god I cringe anytime I seed micro-HDMI being used for anything but a case study of a pointless, terrible port. I’d rather not have any display-out at all vs a port that is probably going to fail right when I need it to, if I can remember the stupid adapter.

        Should’ve just been another USB-C port. Let me break it out to what I need, since I’m gonna need a dongle anyways.

      • porcoda an hour ago

        I bought one of those for this reason. I really like starlabs and want to support them, but the keyboard cover for that device is .. not great. If it had a keyboard similar to the apple ipad keyboard (the expensive one with backlighting - I forget their name for it), the starlite would be a much more compelling device. At this point mine just sits in a desk drawer and may find its way to eBay.

      • terhechte 2 hours ago

        but that doesn't run the official Netflix, Disney+, Apple+ etc apps, does it? Or via something like Waydroid?

        • layer8 27 minutes ago

          It can run Windows 11. Presumably you could also dual-boot.

  • amelius 3 hours ago

    Nice. Is there a user-friendly way to open a webpage that is running on the RPi? (I.e. without bothering the user with IP-addresses and such)

    • ajb 3 hours ago

      Raspberrypi.local normally works; (using the bonjour/avahi protocol for local DNS on both sides, which is set up by default on raspbian). Might be more tricky to get a proper certificate for https

      • Uehreka 2 hours ago

        mkcert can help with this! https://github.com/FiloSottile/mkcert

        As one-time-setup you’ll need to serve the ROOTCA.pem from the Pi and download and install it on the iPad, but once you’ve done this once, any certs you generate on the Pi will be accepted by the iPad.

        mkcert has enabled so many crazy setups and workflows for me over the years, it’s truly fantastic.

  • moffkalast 3 hours ago

    Pretty interesting. The Turtlebot 4 educational robot also uses this approach to power/ethernet interface the Pi 4 and the microROS controllers that run on the roomba. Before seeing that a while back I would've never imagined it possible.

    • int0x29 an hour ago

      Sounds much better than what they used to do which was glue an eePC to a roomba via a terrifying number of dongles

      • moffkalast 23 minutes ago

        Ha yes, definitely better in that regard. Also they now have a lidar too so navigation is trivial, but the M0 controllers and the Pi 4 are all really underpowered for ROS 2 so... there are still various issues lol.