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This board is based on the Arduino MEGA 2560 but modified to allow its use with Google's Android Open Accessory Development Kit (ADK) as it has a built-in USB Host port.
Arduino MEGA ADK is a board based on an ATmega2560 microcontroller. It has a USB host interface port to connect it with Android devices based on the MAX3421e chip.
It has 54 I/O pins (14 of which with PWM), 16 analog inputs, 4 UARTs ports (hardware), 16 MHz crystal oscillator, a USB connector, a power jack, ICSP pins and a reset button.
It has an integrated Serial/USB converter based on an Atmega8U2 chip.
Features:
- Microcontroller: ATmega2560
- Power supply: 5VDC
- Power Input: 7-12VDC (recommended)
- Power supply input limits (maximum values): 5.5-16VDC
- Digital pins: 54 (14 with PWM)
- Analog pins: 16
- Current per pin: 40 mA
- Current on pin 3.3V: 50 mA
- Flash memory: 256 KB (8 KB used for boot loader)
- SRAM: 8 KB
- EEPROM: 4 KB
- Clock: 16 MHz
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