ElecFreaks sensor:bit for micro:bit (sensorbit)

ElecFreaks sensor:bit for micro:bit (sensorbit)

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  • Product Code: SENSOR-BIT
  • Warranty Period: 12 months
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Another board designed for the popular micro:bit, the Sensor:bit. It is a breakout board based on micro:bit. It has extended all available IO ports on micro:bit, and lead out them in the form of GVS(Ground, Voltage and Signal). With this board, we can extend various 3V electric brick modules like LED light, photocell, etc.. On the board, it has integrated a buzzer and an audio jack, which allows us to hear music from the buzzer or with our headphone.


  • Extend most IO ports on micro:bit by GVS pins.
  • Independently lead out IIC interface. Enable to plug in IIC components like OLED, BME280, etc..
  • Integrated a buzzer and an audio jack.
  • Support Lego interface.
  • Mark out each IO port with silk printing.

Definition of Pins

Main Components

Audio Jack

Headphone is controlled by P0 port. Plug in your headphone, the buzzer will disconnect automatically.



The buzzer is controlled by P0 port. Plug in your headphone, the buzzer will disconnect automatically.


16 Channel Standard GVS Port

This is a standard GVS interface with 16 channels. It can extend 3V electric brick module.


I2C Port

This is a group of I2C female header, which can connect with OLED module directly.

This is a group of I2C male header.


Quick Start

Hardware Assembly

Plug your micro:bit into sensor:bit.


Navigate to the programming interface of Makecode online editor. Write your code to make the buzzer on sensor:bit play music.

You can see the whole program from the link here: https://makecode.microbit.org/_3At2iE5Ue3XK


Press button A on micro:bit, the buzzer starts to play music. Plug in your headphone to sensor:bit, the buzzer stops playing music, and you can hear the music through your headphone.


  • Product: sensor:bit
  • Version: V1.6
  • SKU: EF03415
  • Working Voltage: 2.7V to 3.3VDC
  • Buzzer: Integrated
  • Lego interface: supported
  • Size: 57mm x 42mm
  • Net Weight: 18g


Packing List

  • 1 x sensor:bit


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Tags: ElecFreaks, micro:bit, EF03415 sensorbit