The A000069 is a Arduino ADK Rev3 development board based on the ATmega2560 microcontroller. It has a USB host interface to connect with Android based phones. It is compatible with Android"s accessory development kit examples. It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16MHz crystal oscillator, a USB connection, a power jack, an ICSP header and a reset button. Arduino ADK Rev3 development board has 1.0 pinout, added SDA and SCL pins for TWI communication placed near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board and the second one is a not connected pin, that is reserved for future purposes and stronger RESET circuit. Similar to the Mega 2560 and Uno, it features an ATmega8U2 programmed as a USB to serial converter.
