Development Board Arduino Due

The Arduino Due is a development board based on the Atmel SAM3X8E ARM Cortex-M3 microcontroller running at 84 MHz. It is the first Arduino board built on a 32-bit ARM core and includes 54 digital I/O pins (12 PWM-capable), 12 analog inputs, 4 hardware UARTs, 2 DAC outputs, 2 TWI interfaces, USB OTG support, SPI and JTAG headers, a power jack, reset and erase buttons, and 96 KB of RAM. The board contains everything needed to support the microcontroller; connect it to a computer via micro-USB or power it with an AC-to-DC adapter or battery to start. Note that the Arduino Due operates at 3.3V and its I/O pins must not be driven above 3.3V.

Advantages

The Arduino Due offers 32-bit processing performance with an 84 MHz ARM Cortex-M3 core, providing higher speed and more addressable memory than typical 8-bit Arduino boards. Its rich set of peripherals — multiple UARTs, DACs, TWI, USB OTG, SPI and JTAG — makes the board suitable for complex, real-time and communication-heavy projects. Full onboard support (power circuitry, USB interface, reset/erase buttons) simplifies development and prototyping.

Suitable for

• Robotics projects that require real-time control and multiple interfaces
• Automation and control systems with higher processing needs
• IoT gateways and devices that use USB OTG and multiple serial connections
• Audio or signal output applications using the onboard DACs
• Advanced prototypes that need 32-bit performance and larger RAM

Key specifications

• Microcontroller: Atmel SAM3X8E ARM Cortex-M3
• Clock speed: 84 MHz
• Digital I/O: 54 pins (12 PWM outputs)
• Analog inputs: 12
• DAC outputs: 2
• UARTs: 4 hardware serial ports
• RAM: 96 KB
• Interfaces: USB OTG, SPI header, JTAG header, 2 TWI
• Operating voltage: 3.3 V (I/O max 3.3 V)
• MPN: 65193, EAN: 9783645651936

How to use

Connect the Arduino Due to a computer with a micro-USB cable to program it using the Arduino IDE or a compatible toolchain. Alternatively, supply power via an appropriate AC-to-DC adapter or a regulated battery source. Install shields that are compliant with the Arduino 1.0 pinout and designed for 3.3V operation. Ensure any external signals connected to I/O pins do not exceed 3.3V to avoid damaging the board. Use the provided SPI, UART, TWI and DAC peripherals through the relevant pins and headers as required by your application.

Usage recommendations

When integrating shields or external modules, verify 3.3V compatibility or use proper level shifting. Avoid applying 5V signals to I/O pins. For stable operation in communication- or timing-sensitive projects, use the hardware UARTs and USB OTG features and keep power supply lines adequately decoupled.