Lets you choose to use Arduino pins, shift register Input/Output, I2C PCF8574/PCF8575, AW9523, and MCP23017 in an inter-changable way. Use it in your sketch to treat shift registers or i2c expanders ...

This is the BMS that I am using currently: In the datasheet we will find the system block diagram of the BMS ... Now after understanding how the BMS works, its time to connect it to the (EV2300 or ...

The circuit diagram ... lcd (0x27, 16, 2): LCD initialization with I2C address 0x27. rf_driver (2000, 11, 12, 0): Configures the RF module (2000 bps baud rate, RX on pin 11, TX on pin 12). str_helmet, ...