技術(shù)規格MicrocontrollernRF52840Operating Voltage3.3VInput Voltage (limit)21VDC Current per I/O Pin15 mAClock Speed64MHzCPU Flash Memory1MB (nRF52840)SRAM256KB (nRF52840)EEPROMnoneDigital Input / Output Pi
Microcontroller | nRF52840 |
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 and BMM150 |
Microphone | MP34DT06JTR |
Gesture, light, proximity, color | APDS9960 |
Barometric pressure | LPS22HB |
Temperature, humidity | HS3003 |
