MomBoard: E-ink display for a parent with amnesia

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.

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.

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.

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.