DFRduino M0 Mainboard (Arduino Compatible)

Description

DFRduino M0 is the first 32-bit Arduino microcontroller based on ARM Cortex-M0 core that supports 5V logic.

If you use a standard UNO-compatible microcontroller in a project, do you ever find that GPIO and processing performance is underwhelming? Upgrading to a Mega style microcontroller is too expensive, and Arduino ZERO/M0 doesn’t support 5V logic. These problems are solved with the DFRduino M0.

The DFRduino M0 uses a Nuvoton high-performance 32-bit microcontroller as the processing core with integrated ARM Cortex M0 architecture, supports 5V logic, includes a USB port and two hardware serial ports with 31 digital pins (partial multiplexing) and 6 analog pins. It is compatible with Arduino Leonardo pin mappings and has more I/O resources and more powerful processing capacity.

In addition,, the DFRduino M0 extended features an IIS interface to support playback of wav files. With a professional IIS chip, you can enjoy HiFi audio experience.

Note: Due to the different control chip, DFRduino M0 is totally different to the official Arduino M0 microcontroller. Please see the wiki for more information.

Specifications

• Microcontrollers: Nuvoton NUC123ZD4AN0 (Cortex M0)
• Clock Speed: 72MHz
• Operating Voltage: 5V
• Recommended Input Voltage: 7-12V
• Limit input voltage: 6-20V
• Digital I/O Pins: 31
• Analog input Pins: 6
• External Interrupt: 4
• SRAM: 20K
• Flash: 68K (12 KB of which is allocated to bootloader, 55K used by the user code area, 1K used by EEPROM)
• EEPROM: 1K
• SPI: 1 port (D14, D15, D16)
• IIC / I2C: 1 port (D2, D3)
• USB serial port: 1 (Serial)
• Physical serial port: 2 (Serial1, Serial2) Serial1 0 (Rx1) and 1 (Tx1) Serial2 24 (Rx2) and 25 (Tx2)
• Xbee interface: 1 (Serial1)
• Size: 68 x 53 mm/ 2.68 x 2.09”
• Weight: 30g

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