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It’s possible to get one of these e-ink display boards with an ESP32 microprocessor for not much more than the display alone. It has onboard WiFi and makes for
by jandals 6y ago
It’s possible to get one of these e-ink display boards with an ESP32 microprocessor for not much more than the display alone. It has onboard WiFi and makes for an even smaller unit since there is no need to attach it to a Pi. It also ditches the operating system so you get an instant boot.
Programming is via PlatformIO, MicroPython or Rust (if you’re adventurous! - Rust is not quite ready for ESP32). Has reignited my interest in coding after a hiatus, and there is something that feels special about these eink displays.
- photojosh 6y agoNot to mention really low power then, right? So you could have it wake up once every few minutes to refresh and a battery charge could last weeks.
- jandals 6y agoYes, for sure. I think the standard ESP32 + eink combo module consumes about 7.5ma in deep sleep. If you desolder the onboard power LED it will be much less - possibly 1ma.
- eximius 6y agoSource?
- glomph 6y agoWould it be possible to link to an example of what you mean?
- mleonhard 6y agohttps://www.crowdsupply.com/e-radionica/inkplate-6 https://www.crowdsupply.com/e-radionica/inkplate-6
- Rebelgecko 6y agoI've used one of the Lilygo Eink boards (this one I think: https://www.aliexpress.com/item/32869729970.html https://www.aliexpress.com/item/32869729970.html). Their documentation (https://github.com/lewisxhe/TTGO-EPaper-Series https://github.com/lewisxhe/TTGO-EPaper-Series) is marginally better than most Aliexpress sellers (still not great, and blatantly wrong for some things like the width of the JST battery connector). There is a little driver funkiness with some of the boards and I've actually experienced something that looks similar to burn-in on mine, but the price is right and the form factor is great as long as the 2-3 inch screens are big enough for you.