> **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

# 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.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)