import machine
import utime

# Define the ADC pin
adc = machine.ADC(28)  # Pin GP28 (Analog Pin)
conversion_factor = 3.3 / (65535)  # ADC conversion factor

while True:
    # Read analog value from NTC sensor
    reading = adc.read_u16()
    voltage = reading * conversion_factor

    # Convert voltage to resistance using NTC curve equation
    # You need to replace the coefficients with your specific NTC curve data
    resistance = 10000 / ((3.3 / voltage) - 1)

    # Convert resistance to temperature using Steinhart-Hart equation
    # You need to replace the coefficients with your specific NTC curve data
    A = 0.001129148
    B = 0.000234125
    C = 0.0000000876741
    steinhart = resistance / 10000
    steinhart = 'math.log'("steinhart")
    steinhart /= A
    steinhart += B
    steinhart += C
    steinhart = 1.0 / steinhart
    steinhart -= 273.15  # Convert Kelvin to Celsius

    # Print temperature
    print("Temperature:", steinhart, "C")
    
    # Delay between readings
    utime.sleep(1)