DFRduino M0 Mainboard (Arduino Compatible)

32-bit Arduino-compatible microcontroller with ARM Cortex-M0 core, supports 5V logic, features 31 digital and 6 analog pins, and includes HiFi audio playback.

USBOfficial table 2 row 1
USB Power
Type · pin
External PowerOfficial table 2 row 2
7~12V
Type · pin
Digital IO D0~D13Official table 2 row 3
Digital IO D0~D13 (Leonardo Compatible)
Type · digital io
Digital IO D24~D31Official table 2 row 4
Digital IO D24~D31
Type · digital io
SPI InterfaceOfficial table 2 row 5
D14, D15, D16 (Pin Multiplexing)

Start wiring

SPI · Analog

Confirm the data interface matches your host board.

Module pins: SPI Interface, Analog A0~A5. Schematik maps them to your board in the app.

Related groups

4 groups

Connectors

Sort passive connector adapters from Qwiic boards, LCD modules and microSD card adapters before assuming anything with the right plug will substitute safely.

Connectors & cables · Connectors · 28 parts

Displays

Character LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.

Displays · TFT & LCD displays · 33 parts

Air quality

Choose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.

Sensors · Gas & air-quality sensors · 29 parts

MCUs and boards

ESP32, Arduino Uno, Raspberry Pi Pico, and compatible add-on boards for running builds.

Boards · Microcontroller boards · 24 parts

Pin	Position	Type	Function
USB	Official table 2 row 1	pin	USB Power
External Power	Official table 2 row 2	pin	7~12V
Digital IO D0~D13	Official table 2 row 3	digital io	Digital IO D0~D13 (Leonardo Compatible)
Digital IO D24~D31	Official table 2 row 4	digital io	Digital IO D24~D31
SPI Interface	Official table 2 row 5	spi	D14, D15, D16 (Pin Multiplexing)
Analog A0~A5	Official table 2 row 6	analog	Analog A0~A5 (D18~D23 Multiplexing)
MCU	Official table 2 row 7	pin	NUC123LD4AN0
Xbee Socket	Official table 2 row 8	pin	Serial1, support wireless programming

Pinout

Start wiring

Connectors

Displays

Air quality

MCUs and boards