技术规格
|
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 |