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Description
- 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
- DC Current for 3.3V Pin: 600mA
- DC Current for 5V Pin: 600mA
- Circuit Operating Voltage: 3.3V
- Digital I/O Pins: 22
- 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
- Flash Memory for Bootloader: 8 KB
- SRAM: 32 KB
- EEPROM: no
- Clock Speed: 32.768 kHz (RTC), 48 MHz
- LED_BUILTIN: 32
- Full-Speed USB Device and embedded Host