from machine import ADC
import utime
import math
thermistor = ADC(28)
while True:
temperature_value = thermistor.read_u16()
Vr = 3.3 * float(temperature_value) / 65535
Rt = 10000 * Vr / (3.3 - Vr)
temp = 1/(((math.log(Rt / 10000)) / 3950) + (1 / (273.15+25)))
Cel = temp - 273.15
Fah = Cel * 1.8 + 32
print ('Celsius: %.2f C Fahrenheit: %.2f F' % (Cel, Fah))
utime.sleep_ms(200)