from machine import ADC, Pin
import math, utime

adc = ADC(Pin(34))

def get_temp():
    value = adc.read()
    voltage = value / 4095 * 3.3
    T0 = 298.15
    B = 3950
    R0 = 10000
    R = 10000 * voltage / (3.3 - voltage)
	# Using Steinhart-hart equation
    T = 1 / (1/T0 + (1/B) * math.log(R/R0)) - 273.15
    return T

while True:
    temp = get_temp()
    print("Temperature: {:.1f} C".format(temp))
    utime.sleep(0.5)