How to build a circular LCD clock
23 points by zachahn
23 points by zachahn
I also tried with a Raspberry Pi Zero 2, but 512 MB of RAM were too little to run a modern browser, sadly.
That's a sad thing to read. I wonder if a less "modern" browser like Dillo could get the job done if the plan was to stick with web tech. It doesn't feel like displaying a clock face should be all that demanding. A better option might be SDL, which can run directly against Raspberry Pi graphics without needing to run an X11 or Wayland session.
I like those ideas! Having little RAM and a (relatively) slow CPU is of course also a fun constraint for creative coding! :) Maybe I'll really try the SDL route.
You could go in between, preserving some markup rendering but using just librsvg to do software rendering of SVGs, then blit the result straight onto the LCD. (SDL or something lower level) It should still be small enough for the smaller Pi-s.
You’ll need: Waveshare’s 7 inch circular LCD: It’s 1080 x 1080 pixels
It's been a long time since I studied geometry but... that sounds like a square to me.