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Gravity: IO Expansion Shield for DFRduino M0

SKU: DFR0412

The IO expansion shield is for DFRduino M0/Bluno M0 (not compatible with Arduino Zero etc.). It extends 31 general pins from M0 board, with DFRobot's 3-pin color-code interface (direct sensor connection, great scalability/compatibility). It has external and servo power inputs for stability. It helps enthusiasts/developers skip breadboard wiring/troubleshooting, boost productivity, and focus on originality.

Front of Arduino Cortex M0 expansion shield showing connectors and components-DFRobot product sku:DFR0412 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • Specification

    Parameter Details
    External Power Supply 7 ~ 23V
    External Servo Power Design -
    Interface Color-code 3Pin interface, Gravity interface compatible
    GPIOs 31 digital pins (6 PWM port, 6 analog port)
    UART 2
    I2C port 1
    SPI port 1
    Size 62mm × 54mm/2.44 × 2.13 inches

    Pinout

    Overview

    Num Label Description
    1 External Power 7~23V
    2 Servo Power 5~7V
    3 Reset
    4 Serial Note: This shield is only applicable to DFRduino M0, Bluno M0, on DFRduino M0, it is Serial1; on Bluno M0, it is Serial
    5 Analog Input Pins Black: GND; Red: 5V; Blue; Analog input (0~5)
    6 I2C Port
    7 SPI Port
    8 Digital I/O Pins Black: GND; Red: 5V; Green: Digital I/O Pins (0~16, 24~31)
    9 Reuse Pin Marks Reversed silk-screen mark

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