DFRobot (DFR0626) I/O Expansion Module, Gravity, 16 Digital, Arduino Board

Product Information Accessory Type: 16 Digital IO Expansion Module For Use With: Arduino Board Product Range: - Product Overview DFR0626 is a Gravity: MCP23017 I2C 16 digital IO expansion module. This Gravity: MCP23017 I2C IO 16 digital IO expansion module has 2 groups of IO pins, GPIOA and GPIOB. Each group has 8 independent IO interfaces, and each IO interface can be set to input, output, pull-up input (connect to 100KR pull-up resistor), interrupt and so on. Supporting to expand 128 IOs at most Multiple IO mode Changeable I2C address by dial switch Multiple VCC and GND pins leaded Compatible with both 3.3V and 5V Operating voltage range from 3.3V to 5.5V Dimension is 44x32mm / 1.73x1.26inch