Arduino Mega ADK R3 Board (ATmega2560) for Android Accessory Development
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Prices updated: 12 Oct 2026
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About this product
The Arduino Mega ADK R3 is an ATmega2560-based board with a USB host interface for connecting Android phones and accessories. It includes a power boost converter that can charge an Android phone from DC power while connected. It is pin-compatible with the Mega R3 and adds an IOREF pin and duplicated SCL/SDA pins next to AREF.
Specifications
- Microcontroller
- ATmega2560
- Digital I/O pins
- 54
- USB interface
- USB Host for Android phones
- Pin compatibility
- Mega R3 pin-compatible, with IOREF added
- Power boost
- Charges connected Android phone from DC power
Frequently asked questions
Does it work like a regular Arduino Mega?
Yes. According to the listing, it acts like the Arduino Mega R3 and is pin-compatible with it, so Mega shields and sketches for the Mega R3 should work with it.
Which Android phones can it connect to?
The board is designed for Android accessory communication and works with the Android Accessory examples. Check that your phone supports the Android accessory protocol used by those examples before wiring it up.
