ESP32 CoinCell board

https://www.electronics-lab.com/esp32-coincell-board/

This is an ESP32 Pico D4 project with an accelerometer and 0.69″ oled display powered by a rechargeable LIR2450 coin cell. Source files are available on github.com. Mike Rankin writes: I was not made for any specific purpose and was a design challenge to try and made it as small as possible. It can be powered […]