The Arduino Due is the first Arduino board based on a 32-bit ARM core processor, the Atmel AT91SAM3X8E ARM Cortex-M3 MCU running at 84 MHz. It improves upon all the standard Arduino functionalities and adds new features. The AT91 is pre-programmed with the Arduino bootloader that allows you to upload code to it via USB using the open-source Arduino development environment.
The board has 54 digital input/output pins (of which 16 can be used as PWM outputs with selectable resolution), 12 analog inputs with 12-bit resolution, 4 UARTs (hardware serial ports), two DAC outputs, an 84 MHz crystal oscillator, two USB connections, a power jack, an in-system programming header, a JTAG header, and a reset button.
The Due has two USB connectors. The micro-USB Type AB connector nearest the reset button is the native USB port capable of acting as USB Host, so you can connect a USB peripheral like a mouse, keyboard or smartphone. It also allows for serial (CDC) communication over USB, providing a serial connection to the Serial Monitor or other applications on your computer. The micro-USB Type B connector next to the power jack is intended for programming/debugging purposes.
This Programming Port is connected to an ATmega16U2, which provides a virtual COM port to software on a connected computer. There is no need for drivers under Linux or Mac (only an .inf file included with the Arduino IDE is required for Windows). Note that while it is possible to select either the Native USB Port or the Programming Port in the IDE, using the Native USB Port for programming is not recommended as it uses a less reliable soft-erase method.
Simply connect the Due to a computer with a USB cable, or power it with an optional AC-to-DC adapter (7V to 12V DC) or 9V battery to get started. The Arduino Due board is compatible with most 3.3V Arduino Shields (add-on boards) designed for the Arduino Uno, Mega, Duemilanove or Diecimila boards. (Note that, like the Mega, the Due has I2C on pins 20 and 21 instead of analog inputs 4 and 5.)
WARNING: Unlike previous Arduino boards, this is a 3.3V system. Providing 5V to an input pin will damage the board. Make sure any shields you use do not return 5V (many do).
About Arduino Arduino is an open-source platform with a pre-programmed bootloader and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).
Arduino Due Features
- AT91SAM3X8E microcontroller
- Operating Voltage: 3.3V
- Input Voltage: 7-12V (max. limits 6-20V)
- 54 Digital I/O Pins (16 PWM outputs)
- 12 Analog Inputs
- 2 Analog Outputs (DAC)
- Total DC Output Current on all I/O Lines: 130 mA
- DC Current for 3.3V Pin: 800 mA
- DC Current for 5V Pin: Theoretically 1A, realistically 800 mA
- 512 KB Flash Memory
- 96 KB SRAM (64 + 32)
- 2 Mbit DataFlash (250 KB)
- 84 MHz Clock Speed
Arduino Due Documentation
Optional Recommended Products for this Item