jandals

Yes, 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.

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.