Expand the number of I/Os of an Arduino board. It is based on the chipset MCP23017. The chipset MCP23017 communicates with Arduino through I2C interface. It adds GPIOA and GPIOB, a total of 16 I/Os. There are two LEDs and two buttons on the shield. User can decide if they want to use the built-in LED/buttons or not by using the 4-bit DIP switch.
Length:60.0 mm
Width:55.0 mm
Height:15.0 mm
Expander I/O Shield for Arduino/Pcduino
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