# Measures the ambient temperature using a NTC Thermistor module KY013

from utime import sleep
from machine import ADC, Pin 
import math

analog_value = ADC(0)
 
# Calculate the temperature using Steinhart-Hart equation
def Temperature(RawValue):
    c1 = 0.001129148
    c2 = 0.000234125
    c3 = 0.0000000876741
    R1 = 10000.0
    ADC_Res = 65535.0
    R2 = R1 / ((ADC_Res/RawValue - 1))
    T = math.log(R2)
    Tmp = 1.0 / (c1 + (c2 + (c3 * T * T)) * T)
    Temp = Tmp - 273.15
    return Temp

while True:
    Raw = analog_value.read_u16()   # Read temp
    Temp = Temperature(Raw)         # Calculate
    print("Temperature (C): ",Temp) # Display
    sleep(1)                        # Wait 1 second