Geek's Makerspace IIC/I2C/TWI/SPI Serial Interface Board Module For Arduino LCD Display - Product Features
- 5V power supply.
- Serial I2C control of LCD display using PCF8574.
- Backlight can be enabled or disabled via a jumper on the board
- Contrast control via a potentiometer
- Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing.