Overview: The SainSmart Due for Arduino is a microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU (datasheet). Warning : Unlike other Arduino boards, the SainSmart Due board runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Providing higher voltages, like 5V to an I/O pin could damage the board. Features: &nbsp&nbsp&nbsp● It is the first board for Arduinobased on a 32-bit ARM core microcontroller. &nbsp&nbsp&nbsp● It has 54 digital input/output pins (of which 12 can be used as PWM outputs). &nbsp&nbsp&nbsp● It also has 12 analog inputs, 4 UARTs (hardware serial ports), a 84 MHz clock, an USB OTG capable connection, 2 DAC (digital to analog), 2 TWI, a power jack, an SPI header, a JTAG header, a reset button and an erase button. Specification: &nbsp&nbsp&nbsp● Microcontroller: AT91SAM3X8E &nbsp&nbsp&nbsp● Operating Voltage: 3.3V &nbsp&nbsp&nbsp● Recommended Input Voltage: 7-12V &nbsp&nbsp&nbsp● Min-Max Input Voltage: 6-20V &nbsp&nbsp&nbsp● Digital I/O Pins: 54 (of which 12 provide PWM output) &nbsp&nbsp&nbsp● Analog Input Pins: 12 &nbsp&nbsp&nbsp● Analog Outputs Pins: 2 &nbsp&nbsp&nbsp● Total DC Output Current on all I/O lines: 130 mA &nbsp&nbsp&nbsp● DC Current for 3.3V Pin: 800 mA &nbsp&nbsp&nbsp● DC Current for 5V Pin: 2A &nbsp&nbsp&nbsp● Flash Memory: 512 KB all available for the user applications &nbsp&nbsp&nbsp● SRAM: 96 KB (two banks: 64KB and 32KB) &nbsp&nbsp&nbsp● Clock Speed: 84 MHz Pack List: &nbsp&nbsp&nbsp● 1x SainSmart DUE &nbsp&nbsp&nbsp● 1x USB Cable