• JustEnoughDucks@slrpnk.net
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    1 day ago

    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.

    • MangoCats@feddit.it
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      23 hours ago

      Yeah, I’ve got mine showing current temperature, forecast and our Google calendar, so it probably refreshes 40-50x per day. The bigger power draw is firing up the WiFi module to check for new information once every 5 minutes. Last battery charge ran about 2 weeks.