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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 |
|
Microphone |
MP34DT05 (datasheet) |
Gesture, light, proximity, color |
APDS9960 (datasheet) |
Barometric pressure |
LPS22HB (datasheet) |
Temperature, humidity |
HS3003 (datasheet) |
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