SAMD21 M0 Mini 32 bit ARM Cortex M0

The RobotDyn SAMD21 M0-Mini represents a powerful, 32-bit extension of the Arduino UNO platform, but in small size like Micro or Nano. The board is powered by Atmel’s SAMD21 MCU, featuring a 32-bit ARM Cortex® M0 core which is Compatible with Arduino Zero and Arduino M0.
The SAMD21 M0-Mini board expands the family by providing increased performance, enabling a variety of project opportunities for devices, and acts as a great educational tool for learning about 32-bit application development. The Zero applications span from smart IoT devices, wearable technology, high-tech automation, to crazy robotics. The board is powered by Atmel’s SAMD21 MCU, which features a 32-bit ARM Cortex® M0+ core. One of its most important features is Atmel’s Embedded Debugger (EDBG) port, which provides a full debug interface without the need for additional hardware, significantly increasing the ease-of-use for software debugging. EDBG also supports a virtual COM port that can be used for device and bootloader programming.

Features

• ARM Cortex M0+ CPU
• Runs at 48 MHz clock
• Native USB Port (Both USB Host and USB Device roles are possible)
• Programmable via USB with a bootloader
• Arduino compatible (same chip as Arduino M0 pro) but in smaller size

Technical Specifications

• CPU Part Number: ATSAMD21G18A
• Debug mode: SWD (can be programmed with ST-LINK V2)
• CPU Internal Maximum Clock : 48MHz
• External Clock Source: 32.768KHz crystal
• 256KB (256K x 8) flash memory,
• 32KB (32K x 8) SRAM
• Input Voltage (recommended):
  • 5-9v @ VIN
  • 5v @ USB
• IO Voltage: 3.3V
• VOUT: 3.3V 180mA (maximum)
• Reset(POR/PDR)
• Digital IOs: 22 (D0-D13, D20/SDA, D21/SCL, A0-A5)
• DC Current per I/O Pins: 7 mA
• Analog Inputs: 6 (A0-A5)
• ADC Resolution : 12 Bits
• Analog Outputs: 1 on Pin A0
• DAC Resolution: 10 Bits
• External Interrupt: All pins except pin 4
• PCB Size: 53.4mm x 23.0mm
• Weight: 6.5g (with male-male headers installed)

Programming Instructions

• Select Arduino / Genuino Zero (Native USB Port) to program the Board in Arduino IDE
• To Access Serial Port in Arduino use SerialUSB instead of Serial object
  • Example: SerialUSB.begin (9600);
  • Example: SerialUSB.println (“helloworld”);

DataSheet

#1, Bak 5.05.A