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An Arduino UNO has a limited number of GPIO pins - but what if it is not enough? The GPIO expansion shield specifically designed for Arduino UNO-type boards. This shield greatly expands the GPIO resources to 36 pins in total, including 14 digital pins, 6 analog pins and 16 I2C pins. In addition digital and analog pins include the DFRobot "Gravity" interface, giving you in-line power and ground pins and saving you having to connect millions of jumper wires for a single sensor.


  • Arduino Digital Pins: 14, D0 - D13
  • Arduino Analog Pins: 6, A0 ~ A5
  • IIC to GPIO Digital Pins: 16, P0.0 ~ P0.7; P1.0 ~ P1.7
  • IIC Port: 1
  • UART Port: 1
  • Power Supply: 5 VDC / External Power Supply (jump cap switch)
  • Reset Button: 1
  • Dimensions: 53.34 x 54.48 mm / 2.1 x 2.14 inches
  • Weight: 30g



  • GPIO Shield for Arduino V1.0 x1

The Gravity: Arduino GPIO Shield appears in the following collections: