> **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

# Arduino Dock R2 for Onion Omega

**Type:** Product page · **SKU:** DEV-14438 · **Brand:** [Onion Omega](https://core-electronics.com.au/brands/onion-omega-australia)
**Page:** https://core-electronics.com.au/arduino-dock-r2-for-onion-omega.html ([markdown](https://core-electronics.com.au/arduino-dock-r2-for-onion-omega.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: Single Board Computer.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/Single%20Board%20Computer

## 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

The Arduino Dock 2 allows you to supercharge your projects by combining the familiar Arduino platform with the power & connectivity of the Omega2. Onion strongly recommends getting a Dock for your Omega to get the best experience and most performance, functionality, and stability from your device.

### Co-Processor

The Arduino Dock 2 features the ATmega328P microcontroller as a co-processor to act in tandem with the Omega. This microcontroller is the same one used on the Arduino Uno R3! The Omega facilitates programming the microcontroller wirelessly using the Arduino IDE. The Omega and microcontroller can communicate through a Serial UART connection as well as using the I2C bus protocol.

The microcontroller pins are all accessible and arranged in the same way as the Arduino Uno, giving users the ability to quickly port over Arduino projects and reuse any existing Arduino Shields.

### Functionality

The Dock exposes several of the Omega’s features to the user:

- The Omega’s GPIOs are exposed on the Expansion Header. Use the header to plug in Onion Expansions or connect to external circuits
- Connect USB devices directly to your Omega
- Press the Reset Button to reboot your Omega, hold it for 10 seconds to perform a factory restore
- Restart the microcontroller with the MCU reset button
- It’s also possible to provide power with a 5V DC power supply instead of through Micro USB

### Modular

Compatible with all Omega Expansions. Extend the functionality of your Omega by connecting one of our plug and play Expansions.

### Links

- [Arduino Dock R2 Hardware Overview](https://docs.onion.io/omega2-docs/arduino-dock-2.html)
- [Flashing the Arduino Dock R2 Wirelessly](https://docs.onion.io/omega2-docs/flash-arduino-dock-wirelessly.html)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/4/14438-01.jpg)