micro:bit Expansion Board for Boson (DFR0521)

micro:bit Expansion Board for Boson (DFR0521) — DFRobot — DFR0521

micro:bit expansion board with 6 keyed 3-pin Gravity ports, 1 I2C port, and a HuskyLens connector, supporting DFRobot Boson and Gravity sensor/actuator modules. Runs at 3.3 V from its PH2.0 ports (500 mA max); HuskyLens port is 5 V.

Pinout

Logical pinout · physical placement not verified
MICRO:BIT EXPANSION BOGravity 3-pin ports (6)3.3VI2C port5V (HuskyLens)HuskyLens connectorGNDmicro:bit edge
  • Gravity 3-pin ports (6)
    Type · Signal
  • I2C port
    Type · Signal
  • HuskyLens connector
    Type · Signal
  • micro:bit edge
    Type · Signal
  • 3.3V
    Type · Power
  • 5V (HuskyLens)
    Type · Power
  • GND
    Type · Ground

Start wiring

USB · 3.3 V

Confirm the data interface matches your host board.

Module pins: 3.3V, 5V (HuskyLens), GND, Gravity 3-pin ports (6), I2C port, HuskyLens connector, micro:bit edge. Schematik maps them to your board in the app.

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Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.

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