3pcs CJMCU-8575 PCF8575 Bidirectional IIC I2C And SMBus I/O Expander Expansion Board

Description Have you run out of I O pins This great IC allows the user to expand up to 16 I O using only two I O for control The PCF8575C is controlled through an I2C interface and features 16 bits of quasi bidirectional input output pins Package included 3 x Module