Specification:
CPU: ARM Cortex-M0+ CPU(SAMD21G18) running at up to 48MHz
Storage: 256KB Flash,32KB SRAM
I/O PINs: 14 GPIO PINs,11 analog PINs, 11 digital PINs, 1 DAC output Pin
Interface: 1 I2C interface,1 UART interface, 1 SPI interface
Power supply and downloading interface: USB Type-C interface
LEDs: 1 user LED, 1 power LED, two LEDs for serial port downloading
Reset button: two reset button short connect to reset
Power Pads: For the battery power supply
Software compatibility: Compatible with for Arduino IDE
Projection cover for protecting the circuit
Dimensions: 20x17.5x3.5 mm