The Arduino Due R3 Compatible Board is a high-performance development platform built around the ARM-based AT91SAM3X8E microcontroller. Designed for advanced makers, engineers, and hobbyists requiring more processing power than standard 8-bit Arduino boards, this 32-bit ARM board delivers exceptional performance for complex projects.
Key Technical Specifications:
- Microcontroller: AT91SAM3X8E ARM Cortex-M3 processor
- Operating Voltage: 3.3V logic level
- Input Voltage Range: 7-12V recommended (6-20V absolute range)
- Digital I/O Pins: 54 pins total, with 12 PWM-capable outputs
- Analog Capabilities: 12 analog input channels and 2 DAC outputs (12-bit resolution)
- Memory: 512KB Flash memory and 96KB SRAM
- Clock Speed: 84 MHz for fast processing
- Dimensions: 110 x 54 x 15 mm, weighing 38g
32-Bit ARM Architecture Advantages:
The 32-bit ARM Cortex-M3 core provides significant performance improvements over traditional 8-bit microcontrollers. With 4-byte wide data operations, the board handles complex calculations and data processing efficiently. The 84MHz clock speed enables faster execution of code, while the generous 512KB Flash and 96KB SRAM accommodate memory-intensive applications such as signal processing, data logging, and advanced control algorithms.
The integrated DMA controller optimizes data transfer between peripherals and memory without CPU intervention, freeing processing resources for critical tasks. This makes the board particularly suitable for real-time applications, IoT projects, robotics control systems, and data acquisition systems.
Connectivity and Compatibility:
With 54 digital I/O pins and 12 analog inputs, the board offers extensive interfacing options for sensors, actuators, displays, and communication modules. The two 12-bit DAC outputs enable precise analog signal generation for audio applications, waveform generation, and analog control systems.
The board maintains physical compatibility with Arduino R3 shield layout, allowing use of many existing Arduino shields. However, users should note the 3.3V operating voltage and verify shield compatibility before connection, as 5V shields may require level shifting to prevent damage.
Ideal Applications:
- Advanced robotics and automation projects
- IoT devices and smart home systems
- Data acquisition and sensor networks
- Real-time control systems
- Signal processing applications
- Educational STEM projects requiring higher performance
- Prototype development for embedded systems
Due R3 Arduino Compatible Table
| Specification | Detail |
|---|---|
| Main Controller | AT91SAM3X8E |
| Operating Voltage | 3.3V |
| USB Supply Voltage | 5V |
| External Supply Voltage VIN | Recommended Value: 7~12V |
| Maximum Total Current of IO | 130mA |
| Digital IO | 54 (14 can be used as PWM ports) |
| Analog Input Pin | 12 |
| Analog Output Pin | 2 (12-bit DAC) |
| Flash Memory Capacity | 512KB |
| SRAM | 96KB |
| Clock Frequency | 84MHz |
| Net Weight | 38g |
| Size | 110 x 54 x 15 mm |
