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joric / nrfmicro

A Pro Micro alternative for wireless keyboards
https://github.com/joric/nrfmicro/wiki
The Unlicense
1.48k stars 128 forks source link

coin cell battery vs lipo #13

Closed fi0 closed 4 years ago

fi0 commented 4 years ago

If I use a coin cell battery like CR2032 (not rechargeable) instead of lipo, how should I correctly connect it to the board? Thank you!

joric commented 4 years ago

I haven't really though that through ) Better buy a lipo cell or a chargeable LIR2032 they're cheap. You can connect it to RAW/GND but there are no solder jumpers to disconnect it from the charger. I think you can just desolder MCP73831 that feeds 4.2V to the battery so the battery won't explode and you will be good.

fi0 commented 4 years ago

Thank you @joric, I'll go with your first advice :)