Tech specs : -
- Microcontroller - nRF52840 (datasheet)
- Operating Voltage - 3.3V
- Input Voltage (limit) - 21V
- DC Current per I/O Pin - 15 mA
- Clock Speed - 64MHz
- CPU Flash Memory - 1MB (nRF52840)
- SRAM - 256KB (nRF52840)
- EEPROM - none
- Digital Input / Output Pins - 14
- PWM Pins - all digital pins
- UART - 1
- SPI - 1
- I2C - 1
- Analog Input Pins - 8 (ADC 12 bit 200 k samples)
- Analog Output Pins - Only through PWM (no DAC)
- External Interrupts - all digital pins
- LED_BUILTIN - 13
- USB - Native in the nRF52840 Processor
- IMU - BMI270 (datasheet) and BMM150 (datasheet)
- Microphone - MP34DT06JTR (datasheet)
- Gesture, light, proximity, color - APDS9960 (datasheet)
- Barometric pressure - LPS22HB (datasheet)
- Temperature, humidity - HS3003 (datasheet)