ITEM NAME:Arduino PCF8574 PCF8574T I2C 8 Bit IO GPIO expander module & Raspberry.I2C interface, I / O expansion module, two I / O scalability 8 I / O (up to 8 simultaneous use the PCF8574 expanded to 64 I / O). Main resources: the PCF8574 I2C interface, 8-bit parallel. 1 x PCF8574 IO Expansion Board.
