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The Arduino Mega ADK R3 is a microcontroller board based on the ATmega2560, designed specifically for developing accessories for Android devices. It features a USB host interface that allows it to connect with Android-powered phones and tablets using the Android Open Accessory (AOA) protocol.

Based on the Mega 2560, the ADK shares the same powerful specs — 54 digital I/O pins, 16 analog inputs, 4 hardware serial ports — while adding USB host capability for Android accessory development. Compatible with Android 2.3.4 and above.

Key Features

  • USB Host Interface – Connect with Android devices using the Accessory Development Kit protocol
  • 54 Digital I/O Pins – 14 usable as PWM outputs
  • 16 Analog Inputs – For extensive sensor arrays
  • 4 Hardware UARTs – Multiple serial connections
  • 256KB Flash Memory – Room for large, complex sketches
  • R3 Pinout – SDA/SCL and IOREF pins for improved shield compatibility
  • On-Board USB Host – Also works with USB devices like keyboards, mice, Bluetooth dongles, and pen drives

Specifications

  • Microcontroller – ATmega2560
  • Operating Voltage – 5V
  • Input Voltage – 7–12V recommended
  • Digital I/O Pins – 54 (14 PWM)
  • Analog Input Pins – 16
  • Hardware Serial Ports – 4 UARTs
  • Flash Memory – 256KB
  • SRAM – 8KB
  • EEPROM – 4KB
  • Clock Speed – 16MHz

Ideal For

  • Developing accessories for Android devices (v2.3.4+)
  • Connecting Arduino projects to USB peripherals
  • Making Android devices interact with the physical world
  • Complex robotics and automation projects

Package Contents

  • 1× Arduino Mega ADK R3

Resources

The Arduino Mega ADK - R3 appears in the following collections:

SKU DF-DFR0149