Introduction to Arduino Due development board

Introduction to Arduino Due

 Most of the design arrangements for each version of Arduino are based on the use of 8-bit AVR series microcontrollers (developed by Atmel in San Jose, California), except for the Arduino Due, which is equipped with an ARM Cortex-M3 32-bit processor, it is the first Arduino board based on a 32-bit ARM core microcontroller. It has 54 digital input/output pins (12 of which can be used as PWM outputs) and 12 analog inputs.

Figure 1: Front view of Arduino Due;

Figure 2: Arduino Due schematic diagram;

One of the most famous devices in this series is SAM3X8E, Atmel's Smart ARM microcontroller. For the platform to get started with SAM3X8E, you can choose the Arduino Due development board (also called Arduino ARM. SAM3X8E MCU is an ARM Cortex-M3 processor that can run at 84 MHz, 512 KB flash memory and 100 KB SRAM. They also have a wealth of on-chip Peripherals, such as high-speed USB MiniHost and on-chip PHY, Ethernet, dual CAN, high-speed SD/SDIO/MMC and multiple serial interfaces (USART, SPI, TWI (I2C) and one I2S).

Main parameters of Arduino Due:

Microcontroller:   AT91SAM3X8E

Working voltage:   3.3V

Input voltage (recommended):    7-12V

Input voltage (limit):    6-16 volts

54 digital I/O pins  (12 of which provide PWM output)

Analog input channel :   12

Analog input channel:    2 (DAC)

Total DC output current on the I/O line:    130 mA

3.3V port output:   capacity 800 mA

5V port output :   capacity 800 mA

Flash:     512 KB all space can store user program

SRAM:     96 KB     (two storage areas: 64KB and 32KB)

Clock speed :    84 MHz

Length:    101.52 mm

Width:    53.3 mm

Weight:   36 grams

Figure 3: Schematic diagram of Arduino Due pins;

Warning: Unlike most Arduino boards, the voltage of the Arduino Due board is 3.3V. The maximum voltage that the I/O pins can withstand is 3.3V. Applying a voltage higher than 3.3V to any I/O pin may damage the circuit board.