Lithum Battery Charger with Protection TP4056
- price about $0.2 - 0.3
- usually set to Icharge = 1A, modify R3 to change the current
- add cap (1000uF) when using 5V solar as power source, otherwise will charge very slowly (probably because it starts oscilating)
- TP4056 datasheet
- DW01A datasheet
ESP 8266 modules
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