> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Sensor:bit IO extension board for micro:bit

**Type:** Product page · **SKU:** EF03415 · **Brand:** [Elecfreaks](https://core-electronics.com.au/brands/elecfreaks-australia)
**Page:** https://core-electronics.com.au/sensor-bit-io-extension-board-for-micro-bit.html ([markdown](https://core-electronics.com.au/sensor-bit-io-extension-board-for-micro-bit.html.md))

Sensor:bit 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. 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.

## Pricing

- **Price:** $13.23 (inc GST) — $12.03 AUD, exc GST
- **Quantity discounts:** 10+ $11.55 (exc GST) · 25+ $11.18 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 17 today, and up to 300 more in 9–13 days.

## How to buy

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## Description

Sensor:bit 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. 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.

**Features**

- 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.
 
**Quick Start**

**Hardware Assembly**

Plug in your micro:bit sensor:bit

![microbit-sensor-bit-ce07548-desc-hardware](https://core-electronics.com.au/media/wysiwyg/product_images/microbit-sensor-bit-ce07548-desc-hardware.jpg)

**Programming**

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

[Or you can download it from the page here](https://makecode.microbit.org/#pub:_3At2iE5Ue3XK)

**Result**

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.

**Technical Specifications**

- Version No. V1.6
- Working Voltage 2.7~3.3V
- Buzzer Support
- Lego Interface Support
- Size 57mm x 42mm
- Net weight 18g
 
**Dimensions**

![](https://core-electronics.com.au/media/wysiwyg/product_images/microbit-sensor-bit-ce07548-desc-dimensions.jpg)

**Pinout**

**![](https://core-electronics.com.au/media/wysiwyg/product_images/microbit-sensor-bit-ce07548-desc-pinout.jpg)**

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/e/f/ef03415-2.jpg)