rexnanet wrote:In this case the external ADC is cheaper around 0€ lol
Thats why I considered it.
Dont think these are the ones I saw the first time but they vive an idea:
https://hackaday.io/project/13327-teens ... pter-board
https://hackaday.io/project/4446-e-ink- ... pi-display
Yep, ePaper is up and coming, but not widely available yet.
And fairly costly. That adaptor was $25 and the display is another $15 or more