> **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:IO Extender- a micro:bit IO Expansion Board

**Type:** Product page · **SKU:** MBT0008 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/micro-io-extender-a-micro-bit-io-expansion-board.html ([markdown](https://core-electronics.com.au/micro-io-extender-a-micro-bit-io-expansion-board.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## How to buy

- **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

####  Introduction 

 A simple IO extension board for micro:bit. This board leads out all IO ports of micro:bit that are in accordance with Gravity standard interface. Meanwhile, it has independent I2C and Serial port. The board also integrates the frequently-used buzzer and edge connector contacts.
 The silkscreens on the back clearly indicate the functions of all interfaces, which can help users to get started easily. ####  Features 

- Gravity 3-Pin interface, plug and play, support DFRobot Gravity series
- Lead out all micro:bit pins in the form of 3P pin header, 19 pins in total.
- Independent I2C and 1-way serial port.
- Onboard buzzer and buzzer switch
- Onboard edge connector contacts
- Clear silkscreen, ENIG technology and high quality
 
 
####  Specification 

- Operating Voltage: 3.3V
- Dimension: 45.5\*66.5mm/1.79\*2.62”
- Interface: IO port ×19
 
####  Documents 

9. [Product wiki](https://wiki.dfrobot.com/IO_Extender_for_micro%3Abit%20(V1.0)_SKU%3A_MBT0008)
####  Shipping List 

- IO Extender for micro:bit (V1.0) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/0/1039709920.jpg)