The Arduino Due is an open source precise microcontroller board based on the Atmel SAM3X8E ARM Cortex-M3 CPU. It is the newcomer and 1st Arduino board based on a 32-bit ARM core microcontroller. It adds new features and improve all the standard Arduino functionalities.
Operating Voltage: 3.3V
Input Voltage (recommended): 7-12V
Input Voltage (limits): 6-16V
Digital I/O Pins: 54 (of which 12 provide PWM output)
The Raspberry Pi 3 Model B+ is the latest generation of Raspberry Pi. This powerful single board computer can be used for many applications and supersedes the original Raspberry Pi 3 Model B and Raspberry Pi 2 Model B.