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Arduino Due | 32-Bit ARM Cortex-M3
Product Overview
The Arduino Due from Pro Tronix marks the transition from 8-bit to 32-bit professional computing. Based on the Atmel SAM3X8E ARM Cortex-M3 CPU, it offers a massive performance boost over the Mega 2560, making it ideal for math-intensive applications and multitasking.
Its 84MHz clock speed and 96KB of SRAM allow it to handle complex algorithms and real-time operations that would overwhelm a standard Arduino. It features 54 digital pins (the same footprint as the Mega), but with the added precision of two 12-bit DACs for true analog output and 12-bit ADC resolution for incredibly fine sensor readings. Additionally, it includes a Native USB port that can act as a USB Host, allowing you to connect peripherals like mice, keyboards, or even smartphones directly to your project.
Technical Specifications
| Feature | Specification |
| Microcontroller | AT91SAM3X8E (ARM Cortex-M3) |
| Clock Speed | 84 MHz |
| Operating Voltage | 3.3V (Pins are NOT 5V tolerant) |
| Flash Memory | 512 KB |
| SRAM | 96 KB (Dual bank: 64KB + 32KB) |
| Digital I/O Pins | 54 (12 provide PWM output) |
| Analog Input Pins | 12 (12-bit resolution) |
| Analog Output Pins | 2 (12-bit DAC) |
| Communication | 4 UARTs, 2 I2C (TWI), 1 SPI, 2 CAN bus |
| USB Connectivity | 1 Programming Port + 1 Native Port (Host/Device) |
| Supplier | Pro Tronix |
Key Features
32-Bit Power: Processes 4-byte wide data in a single clock cycle, significantly outperforming 8-bit microcontrollers.
Dual USB Ports: Features a dedicated programming port for stable uploads and a native port that supports USB On-The-Go (OTG).
True Analog Output: The two 12-bit DACs allow you to generate high-quality audio or precise control voltages without PWM filtering.
DMA Controller: Includes a Direct Memory Access controller that speeds up memory-intensive tasks by offloading them from the CPU.
CAN Bus Ready: Built-in support for the Controller Area Network (CAN) protocol, essential for automotive and industrial networking.
Common Applications
High-End Robotics: Controlling multi-axis arms or autonomous rovers that require fast sensor-fusion calculations.
3D Printing & CNC: Processing G-code and driving high-speed stepper motor signals with high precision.
Digital Signal Processing (DSP): Filtering audio or analyzing high-speed analog signals in real-time.
Industrial Control: Utilizing the CAN bus and multiple UARTs to bridge various industrial machines and sensors.
⚠️ Critical Voltage Warning: The Arduino Due operates at 3.3V. Applying 5V to any of its I/O pins will damage the SAM3X chip. Ensure all your sensors and shields are 3.3V compatible or use logic level converters.
You can see our available development boards and ARM solutions from here: Development Boards | Pro Tronix
