New features:
* First ARM 32-bit master
* Dual USB download , Native USB port can be modeled as a USB device Due
Technical parameters:
* Processor AT91SAM3X8EA
* Operating voltage 3.3V
* Input voltage 7-12V
* Input voltage ( limit ) 6-20V
* Digital I / O port 54 ( 12 PWM outputs )
* Analog input pin 12
* Analog output pin 2 ( digital to analog converter )
* row mother I / O ports DC output current 130mA
* 3.3V power supply pin can provide 800 mA current
* 5V power supply pin with 800 mA current
* Internal flash memory 512KB
* SRAM96 KB (two banks: 64KB and 32KB)
* 84 MHz clock frequency
