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4 units will be available shortly.

Express post shipping available (product is on backorder)


The Cookie I/O expansion shield is designed for beginners to electronics. The shield is directly compatible with the gravity series. We have implemented fail-safe systems to prevent bad connections from destroying the board. The board is protected from reverse voltage input. And connector ports only accept connections the correct way around. These fail safes make the board ideal for beginners and classroom settings - no need to worry about your students making the wrong connections!


  • Digital I/O Pins: D3, D5, D6, D9, D10, D11 (PH2.0-3P)
  • Analog Input Pins: A0 - A5 (PH2.0-3P)
  • i2C Port: 2 (PH2.0-4P)
  • Operating Voltage: 3.3V/5V (switchable)
  • Size: 58 * 52 mm / 2.28 * 2.04 inches
  • Weight: 50g



  • Cookie I/O Expansion Shield x1
  • Sensor connection cable x12

The Cookie I/O Expansion Shield appears in the following collections: