SmartCharger

Smart charger for universal Li-Ion battery pack charging

Features :

1 to 12S Li-Ion charging
Storage mode charging (no discharging)
User friendly menu
Safety features for battery, charger ans power supply protection
Charge current ramp up
End of charge detection
Web server for remote monitoring and control (using Wifi)
FW update OTA (using Wifi)

Wiring (component pin name -> ESPio 32 pin number)

Power supply

5V hacked on the USB charger -> pin 5V
0V hacked on the USB charger -> pin GND

OLED display (Adafruit monochrome OLED 1.3" 128x64)

CLK -> pin 22
Data -> pin 21
RST -> pin 27
GND -> GND
Vin -> 5V bus

Buttons

Down button -> pin 13
Enter button -> pin 14
Up button -> pin 12
Common pin -> GND

DPS communication

Tx (yellow wire) -> pin 16
Rx (black wire) -> pin 17
GND (green wire) -> GND
3.3V from DPS (red) -> DO NOT CONNECT (isolate it instead)

Active Buzzer

Signal -> pin 26
Vdd -> 5V bus
GND -> GND

Currently in beta version