micro:bit Expansion Board for Boson (Gravity Compatible)

SKU:DFR0521 Brand:DFRobot Reward Points: 79
* Model:


micro:bit is a pocket-sized microcontroller designed for kids and beginners to learn coding and electronics, letting them easily bring ideas into DIY digital games, interactive projects, and robotics.

However, on-board I/O rings and crocodile clips sometimes are not handy and safe enough to connect peripherals. To explore more possibilities with micro:bit, we have designed the micro:bit Expansion Board for Boson, a carry-on board that connects to micro:bit via the edge connector.
micro:bit Expansion Board for Boson (Gravity Compatible) Interface

The expansion board comes with 6 fool-proof 3-Pin sockets, compatible with hundreds of DFRobot’s Boson and Gravity modularized electronic blocks, covering most popular digital and analog sensors and actuators, supporting sound, light, and motion interaction.
Click the link to learn more about DFRobot’s Boson module:
Click the link to learn more about DFRobot’s Gravity module:

Moreover, the expansion board adds a Gravity: HuskyLens interface and an IIC interface. To ensure a steady current supply for these peripherals, the expansion board can be powered externally through the Micro-USB power port.
micro:bit Expansion Board for Boson (Gravity Compatible) Game:pad
micro:bit Boson game pad
micro:bit Expansion Board for Boson (Gravity Compatible) Connected with heart rate monitor
micro:bit RGB LED heart rate monitor

JavaScript display


  • 3-Pin fool-proof connector x 6
  • IIC connector x1
  • Gravity: HuskyLens connector x1
  • External power port and ON/OFF switch
  • DFRobot Gravity and Boson electronic module compatible
  • Specification

  • MicroUSB Power Port Voltage:5V
  • PH2.0 Input/output Voltage: 3.3V
  • Input/output ring Voltage: 3.3V
  • HuskyLens input Voltage:5V
  • Maximum Current: 500mA
  • Working temperature: 0-85 ℃
  • Dimension 80 * 70 mm / 3.15 * 2.76
  • Weight: 48g
  • Projects

    Project 1. Micro:bit Surprise box
    In this project it shows how the box interacts with flahsing hearts.
    Main Components:

    How can a Halloween without a pumpkin lamp? The pumpkin lamp made of recently popular Microbit is a good choice.

    Project 3: A colorful grapefruit made use of micro:bit
    As a trickster for Halloween, how can we lack an ingenious pumpkin lantern as an equipment?
    Hardware components: 
    Needle, utility knife, chopsticks or small wooden stick, scrap wire or wire, wool

    Microbit Project 4: Micro:bit Light(Mood Lamp)

    After programming the micro:bit, you can plug in power to Vin. The Vin will power the micro:bit.

    Hardware components:

    Project 5: micro:bit Laser Target

    The ambient light sensor sensor detects the intensity of the laser pointer. If it is greater than 400, it will sound the buzzer and the servo will make the target fall and up. Game over when it reaches 10. Press A to reset score to 0.

    Hardware components:


    Shipping List

  • micro:bit Expansion Board for Boson x 1
  • 200mm fool-proof PH2.0 cable x 6



    micro:bit Expansion Board for Boson (Gravity Compatible)

    In Stock