10PCS PCF8574T 1602LCD Port TWI SPI Serial Interface Board IIC I2C For Arduino
10PCS PCF8574T Port TWI SPI Serial Interface Board IIC I2C 1602LCD For Arduino. This is another great IIC/I2C/TWI/SPI Serial Interface. However, with this I2C interface module, you will be able to realize data display via only 2 wires.