Hello,
I need to design a board that does the following:
1. Charging two 18650 type 3.7V batteries in series.
2. Shows the charging status with four LED indicators.
3. Fan speed controller (PWM).
I would be appreciated it if you can suggest a ready-made board that can do the above function, or suggests a controller IC that I can use in my circuit.
The size of the board should be small like ESP8266 Arduino.
Thanks,
I need to design a board that does the following:
1. Charging two 18650 type 3.7V batteries in series.
2. Shows the charging status with four LED indicators.
3. Fan speed controller (PWM).
I would be appreciated it if you can suggest a ready-made board that can do the above function, or suggests a controller IC that I can use in my circuit.
The size of the board should be small like ESP8266 Arduino.
Thanks,