Arduino Due microcontroller overview

The Arduino Due is the first Arduino board based on a 32-Bit ARM microcontroller. It is therefore more powerful than the Arduino Mega. It has a high computing and memory capacity, and a large number of inputs.

Microcontroller features

The Arduino Due microcontroller uses the Atmel SAM3X8E ARM Cortex-M3 microprocessor. This processor operates at a clock frequency of 84 MHz, with 96 kB RAM, nc kB EEPROM and 512 kB Flash memory (for programming and data storage).

CPU Atmel SAM3X8E ARM Cortex-M3 Voltage : 3.3V Flash : 512 kB RAM : 96 kB EEPROM : nc kB Clock speed : 84MHz WiFi : No Bluetooth : No SD : No

Power supply

The Arduino Due microcontroller operates over a voltage range of 7-12V, thanks to its on-board voltage regulator, while the microprocessor operates with a voltage of 3.3V. In normal operation, the microcontroller consumes up to 70mA (if no power is supplied) and can accept a maximum current of 3-15mA on each of its IO pins.

Caution: Applying a voltage higher than 3.3V may damage the microcontroller. Note also that the current allowed on each pin is very low. Check the characteristics and compatibility of the modules you are using.

Pinout

• Analog I/O : 12 (A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11)
• Digital I/O : 54 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
• Broches PWM : 14 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
• Communication Série : 4 ((0, 1), (19, 18), (17, 16), (15, 14))
• Logiciel de communicationSérie : 12 (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
• I2C communication: 1 ((20, 21))
• SPI communication: 1 ((10, 110, 108, 109))
• Interrupt : 54 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)

Summary of features

Specific bookshops

• Arduino Due and the Scheduler library for multitasking

Sources

• Arduino Due Reference