Arduino Due

The Arduino Due is the first Arduino board based on a 32-bit ARM core microcontroller. With 54 digital input/output pins, 12 analog inputs, it is the perfect board for powerful larger scale Arduino projects.

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TAIJI means TAICHI. TAIJIUINO Due board derives from Arduino Due. Compared with Arduino Due, we made some changes and improvement. But it is completely compatible with Arduino Due. Users could write code and program it in Arduino IDE.

The board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it with a AC-to-DC adapter or battery to get started. This board is compatible with all Arduino shields that work at 3.3V and are compliant with the 1.0 Arduino pinout.

Exactly like Arduino, Taijiuino follows the 1.0 pinout:

  • TWI: SDA and SCL pins that are near to the AREF pin.
  • The IOREF pin which allows an attached shield with the proper configuration to adapt to the voltage provided by the board. This enables shield compatibility with a 3.3V board like the Due and AVR-based boards which operate at 5V.
  • An unconnected pin, reserved for future use


Taijiuino Due R2S is a simple version of Taijiuino Due R2. Female pins and male pins are not assembled on the board.

Compared with Arduino DUE

Taijiuino R2S Taijiuino R3S
Difference Compared with Arduino Due Add battery interface for RTC
More RESET options:
RSTB is connected to NRSTB
RST is connected to NRST
Ethernet interface on the ATSAM3X8E microcontroller is now available on Taijiuino (Ethernet Module)
RTC battery assembled
Remove Programming USB Port and break out programming pins for external programmer (External Programmer)
20 more pins available than Arduino DUE
Remove LED on P13
Both 3.3V and 5V serial interface is available


ATmel ATSAM3X-EK has the same family ARM chip with Arduino Due. And AVR studio already has complete library for TCP/IP protocol. It is a pity that those pins for Ethernet are not available on Arduino Due. That’s what persuaded us to design a different board. In fact, developers are already developing Ethernet library for Arduino Due. Please visit this page: Connecting an Ethernet PHY to Arduino Due

The following picture shows a webpage in Taijiuino.


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