An arduino powered 3S battery charger controlling the input current to a CC/CV regulator preventing overcharge and allowing battery topup every five minutes
Contains PCB files to be printed. Made in KiCad so edit using KiCAD
Arduino code to run the project
1 Arduino Nano
1 LM7805 voltage regulator
1 IRLZ44N Mosfet
2 1uF capacitors
1 0.1uF ceramic capacitor
1 100uF capacitor
2 5mm pitch screw terminals capable of holding 12AWG wire
1 JST SH 1x4 connector
1 Adafruit INA260 High or Low Side Voltage, Current, Power Sensor