from machine import Pin ,ADC
import math ,onewire, ds18x20 , utime , time

BETA = 3950  
R1 = 10000  
V_REF = 3.3  

adc = ADC(Pin(28))  

ds_pin = Pin(7)
ds_sensor = ds18x20.DS18X20(onewire.OneWire(ds_pin))
roms = ds_sensor.scan()


while True:
    analog_value = adc.read_u16()
    voltage = (analog_value / 65535) * V_REF
    resistance = R1 / ((V_REF / voltage) - 1)

    kelvin = 1 / (1 / 298.15 + 1 / BETA * math.log(resistance / 10000))
    celsius = kelvin - 273.15
    
    ds_sensor.convert_temp()
    time.sleep_ms(200)
    for rom in roms:
        Temp=ds_sensor.read_temp(rom);
        print("Reading from D18B20 Temperature: {:.2f} ℃".format(Temp))
        print("Reading from NTC Temperature: {:.2f} ℃".format(celsius))
        Average_Temp = (Temp+celsius)/2
        print("Average Temperature: {:.2f} ℃".format(Average_Temp))




    
    utime.sleep(1)