DFRobot DFRobot I2C to GPIO Module

Having troubles with inadequate digital I/O when using arduino with robots or interactive media? The DFRobot I2C to GPIO Module helps you solve the problem, Arduino has only two data lines (SCL-Analog PIN5, SDA-Analog PIN4) and IIC can transfer I / O module communication, to convert the 16 digital IO ports, read-write. 8 simultaneous parallel modules, each module can be set to address. Module power supply: +5 V; 16 Digital IO port comes with internal pull-up; Can be set to eight addresses (address range ...