15 wiersze
471 B
Python
15 wiersze
471 B
Python
import machine
|
|
import utime
|
|
|
|
sensor_temp = machine.ADC(4)
|
|
conversion_factor = 3.3 / (65535)
|
|
|
|
while True:
|
|
reading = sensor_temp.read_u16() * conversion_factor
|
|
|
|
# The temperature sensor measures the Vbe voltage of a biased bipolar diode, connected to the fifth ADC channel
|
|
# Typically, Vbe = 0.706V at 27 degrees C, with a slope of -1.721mV (0.001721) per degree.
|
|
temperature = 27 - (reading - 0.706)/0.001721
|
|
print(temperature)
|
|
utime.sleep(2)
|