Microcontroller |
SAMD21 Cortex-M0+ 32bit low power ARM MCU |
Board Power Supply (USB/VIN) |
5V |
Supported Battery(*) |
Li-Po single cell, 3.7V, 700mAh minimum |
Circuit Operating Voltage |
3.3V |
Digital I/O Pins |
8 |
PWM Pins |
12 (0, 1, 2, 3, 4, 5, 6, 7, 8, 10, A3 - or 18 -, A4 -or 19) |
UART |
1 |
SPI |
1 |
I2C |
1 |
Analog Input Pins |
7 (ADC 8/10/12 bit) |
Analog Output Pins |
1 (DAC 10 bit) |
External Interrupts |
8 (0, 1, 4, 5, 6, 7, 8, A1 -or 16-, A2 - or 17) |
DC Current per I/O Pin |
7 mA |
Flash Memory |
256 KB |
SRAM |
32 KB |
EEPROM |
no |
Clock Speed |
32.768 kHz (RTC), 48 MHz |
LED_BUILTIN |
6 |
Full-Speed USB Device and embedded Host |
Lenght |
61.5 mm |
Width |
25 mm |
Weight |
32 gr. |