Fasizi 5pcs PCF8574 IO Expansion Board I/O Expander I2C Bus Evaluation Development Module

Standard interface that can be expanded in a variety of development boards I2C Serial port to 8-bit parallel port , support expand into 8×8 = 64 at most PCF8574 IO expansion chip with I2C interface, 8-bit parallel port output Applicable to a variety of platforms including Arduino / AVR / ARM Board Type: Pin or row seat