this post was submitted on 25 May 2026
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Oh yeah those E-inks have like a 10 second refresh timem they are meant for static art, images, signage, etc...
That is why for clocks and dashboards, I think RLCDs like the https://www.waveshare.com/esp32-s3-rlcd-4.2.htm which is an older tech, but nowadays much better reflection to be closer to e-paper, 60Hz and none of the epaper downsides, but much higher power use.