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A project log for Coin Battery Shield for D1 Mini

Small battery for your ESP8266 devices.

de∫hipude∫hipu 07/04/2019 at 10:330 Comments

I needed a battery for my #D1 Mini UI Shield, so I revived this project and tried a second attempt. This time I'm using a bigger battery, LIR2450, though I made sure you can solder a holder for the smaller LIR2032 as well. There has been a change in how the charging works — with the switch on, the board is powered from the battery (through a shottky diode, to protect it from USB power you might have connected), with the switch off, the battery is charging.

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