DFRobot
DFRduino M0 Mainboard (Arduino Compatible)
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 microcontr...
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.
SPECIFICATION
- 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
DOCUMENTS
Jargon buster
Plain-language definitions for the technical terms used above.
- Bootloader
- Small starter software on a microcontroller that lets new code be uploaded before the main program runs. Knowing how to enter bootloader mode matters when you need to program the board or recover it after a faulty sketch.
- EEPROM
- A type of non-volatile memory that keeps stored data even when power is turned off. In a sensor module, it can be used to store settings or calibration data so they do not need to be re-entered every time.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- SRAM
- Fast temporary memory used by a processor while a program is running. More SRAM helps with projects that handle larger data buffers, networking, displays, or more complex code.
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