/diy/ - Do It Yourself

>>2770132
Well, apart of testing it on a Arduino Nano (Every or something, I don't remember), haven't used it much. It's Full-NKRO, you can basically press any key kombination an it's gonna fire. No software debouncing, just two for loops, pull row, read column (or something, it was like two years ago).
The plan is to make a Freewrite clone but with a decent sized eInk screen (gotta waveshare 9.7" one that should be enough). I have a schematic on paper (an esp32s3, a RPi Pico W, the epaper module and a SD card reader, as well as some ready made circuitry to handle 3v3 - 5v comm) and plan to assemble it on breadbord later this evening, when the kids finally go to bed.
Here's how it looks from above