DFRduino M0 Mainboard

SKU: DFR0392

The DFRduino M0 Mainboard is a high-performance Arduino-compatible board featuring ARM Cortex-M0 architecture, supporting 5V logic levels, equipped with 31 digital pins, 6 analog pins, and an IIS interface for HIFI audio capabilities. Unlike traditional boards, DFRduino M0 addresses common limitations such as pin scarcity and compatibility issues, making it an ideal choice for advanced projects. It requires independent IDE board installation and is compatible with Windows, Linux, and MAC platforms, supporting IDE versions 1.6.0 and above, with custom settings available for other versions.

Front of DFRduino M0 mainboard with USB and VGA ports, Arduino M0 compatible-DFRobot product sku:DFR0392 image.

Downloadable Resources

  • Docs
  • Tech Specs
  • Specification

    Parameter Details
    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 (of which 12 KB used by 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 * 53 mm/ 2.68 * 2.09 inches
    Weight 30g

    Pinout

    Board Overview

    Num Label Description
    1 USB USB Power
    2 External Power 7~12V
    3 Digital IO D0~D13 Digital IO D0~D13 (Leonardo Compatible)
    4 Digital IO D24~D31 Digital IO D24~D31
    5 SPI Interface D14, D15, D16 (Pin Multiplexing)
    6 Analog A0~A5 Analog A0~A5 (D18~D23 Multiplexing)
    7 MCU NUC123LD4AN0
    8 Xbee Socket Serial1, support wireless programming
    DFRduino M0 Pins IC pin Multiplex Note
    D0 PC4 RXD1 INT2
    D1 PC5 TXD1 INT3
    D2 PF2 SDA INT0
    D3 PF3 SCL INT1
    D4 PC0 I2S LRCLK /
    D5 PC3 PWM0 /
    D6 PA13 PWM1 /
    D7 PC2 I2S DI /
    D8 PC3 I2S DO /
    D9 PA14 PWM2 /
    D10 PA15 PWM3 /
    D11 PB8 PWM4 Software PWM
    D12 PC1 I2S BCLK /
    D13 PB14 PWM5 Software PWM
    D14 PA10 SPI MISO /
    D15 PA11 SPI SCK /
    D16 PC11 SPI MOSI /
    D17 PB6 RX LED /
    D18 PD0 A0 /
    D19 PD1 A1 /
    D20 PD2 A2 /
    D21 PD3 A3 /
    D22 PD4 A4 /
    D23 PD5 A5 /
    D24 PB4 RXD2 RX2
    D25 PB5 TXD2 TX2
    D26 PC10 NULL /
    D27 PC9 NULL /
    D28 PC13 NULL /
    D29 PC12 NULL /
    D30 PB9 NULL /
    D31 PB10 NULL /
    D32 PB7 TX LED /

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