The Iteaduino DUE is a microcontroller board based on the Atmel SAM3X8E ARM Crotex-M3 core. It is the improvement board based on the Ardui-no DUE. It has 54 digital IO pins 12 analog inputs 4 UARTs a 84MHz clock an USB OTG capable connection 2 DACs 2 IIC a power jack an SPI header a reset button and an erase button.