# micro:bit Expansion Board for Boson (Gravity Compatible)

**Type:** Product page · **SKU:** DFR0521 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/micro-bit-expansion-board-for-boson-gravity-compatible.html ([markdown](https://core-electronics.com.au/micro-bit-expansion-board-for-boson-gravity-compatible.html.md))

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...

## Pricing

- **Price:** $15.90 (inc GST) — $14.45 AUD, exc GST
- **Quantity discounts:** 6+ $13.73 (exc GST) · 12+ $13.15 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 24.

## Description

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.

![micro:bit Expansion Board for Boson (Gravity Compatible) diagram](https://dfimg.dfrobot.com/enshop/image/data/DFR0521/Description/image002.jpg)
*[micro:bit](https://core-electronics.com.au/micro-bit-v2-australia.html)*
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](https://core-electronics.com.au/micro-bit-v2-australia.html) 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](https://dfimg.dfrobot.com/enshop/image/data/DFR0521/220120Update/pic.png)

The expansion board comes with 6 fool-proof 3-Pin sockets, compatible with hundreds of DFRobot’s [Boson](https://www.dfrobot.com/boson) and [Gravity](https://www.dfrobot.com/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: <https://www.dfrobot.com/boson>
Click the link to learn more about DFRobot’s Gravity module: <https://www.dfrobot.com/gravity>

Moreover, the expansion board adds a [Gravity: HuskyLens](https://www.dfrobot.com/product-1989.html) 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](https://dfimg.dfrobot.com/enshop/image/data/DFR0521/Description/image008.jpg)
*micro:bit Boson [game pad](https://www.dfrobot.com/product-1711.html)*
![micro:bit Expansion Board for Boson (Gravity Compatible) Connected with heart rate monitor](https://dfimg.dfrobot.com/enshop/image/data/DFR0521/Description/image010.jpg)
*micro:bit RGB LED [heart rate ](https://www.dfrobot.com/product-1540.html)monitor*### Specification

25. MicroUSB Power Port Voltage:5V
26. PH2.0 Input/output Voltage: 3.3V
27. Input/output ring Voltage: 3.3V
28. HuskyLens input Voltage:5V
29. Maximum Current: 500mA
30. Working temperature: 0-85 ?
31. Dimension 80 \* 70 mm / 3.15 \* 2.76
32. Weight: 48g
### Documents

34. micro:bit Educational Foundation
35. [micro:bit online](https://makecode.microbit.org/#)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0521-6w4a7664-900x600.jpg)