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Sensor:bit Expansion Board

The Sensor:bit Expansion Board is a powerful breakout board for the BBC micro:bit that makes it easy to connect sensors and actuators using plug-and-play connectors.

It eliminates the need for complex wiring by converting micro:bit pins into GVS style ports, making it ideal for beginners and classroom environments.

Sensor:bit board

What It Does

The Sensor:bit board expands the micro:bit by providing:

Multiple digital, analog, and I2C ports Clearly labeled connectors for easy use Stable power distribution for connected modules

This allows users to quickly build circuits by simply connecting sensors using cables—no breadboard required.

Details of Sensor:bit board

Key Features

  • Supports micro:bit
  • Provides 3-pin connectors (VCC, GND, Signal)
  • Includes I2C interface for displays like OLED
  • Compact and classroom-friendly design
  • Digital Ports to read/write digital signals
  • Analog Ports to read analog values LDR, Soil Moisture

The board acts as a bridge between the micro:bit and external components, simplifying hardware interaction.

Pin details of Sensor:bit board

Example Usage

With the Sensor:bit board, you can easily build:

  • 🌿 Smart Plant Watering System
  • 🌡 Temperature & Humidity Monitor
  • 🔆 Light Detection Projects
  • 🎨 LED Animation Projects

All connections are done using cables, making setup quick and reliable.

Audio Jack

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

Audio Jack of Sensor:bit board

Buzzer

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

Buzzer of Sensor:bit board

16 Channel Standard GVS Port

  • This is a standard GVS (Ground, Voltage and Signal) interface with 16 channels.

GVS Port of Sensor:bit board

I2C Port

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

I2C Female Port of Sensor:bit board

  • This is a group of I2C male header.

I2C Male Port of Sensor:bit board

Powering the Board

The Sensor:bit board can be powered using:

  • micro:bit USB connection
  • Battery pack
  • External power supply (for motors, pumps, etc.)

USB Power Connection of Sensor:bit board

Hardware Assembly

  • The Sensor:bit Expansion Board transforms the micro:bit into a complete prototyping platform by simplifying connections and enabling rapid experimentation.

Microbit and Sensor:bit board

Code

  • Press button A on micro:bit, the buzzer starts to play music.

  • Optional: Plug in your headphone to Audio Jack of sensor:bit, the buzzer stops playing music, and you can hear the music with your headphone.