import board
import analogio
import time
import math

adcpin = analogio.AnalogIn(board.GP26)

# Divisor de voltaje
Vin = 3.30
Ro = 10000  # 10k resistor

# Constantes de Steinhart-Hart
A = 0.001129148
B = 0.000234125
C = 0.0000000876741

while True:
    # Leer ADC y convertir a voltaje
    Vout = (adcpin.value * Vin) / 65535  

    # Calcular resistencia Rt
    Rt = (Vout * Ro) / (Vin - Vout)  

    # Ecuación de Steinhart-Hart
    TempK = 1 / (A + (B * math.log(Rt)) + C * math.pow(math.log(Rt), 3))

    # Convertir de Kelvin a Celsius
    TempC = TempK - 273.15  

    # Imprimir resultados
    print("Dec = {:5d}  Vout = {:5.3f}V  Rt = {:5.1f}Ω  TempC = {:5.2f}°C".format(
        adcpin.value, Vout, Rt, TempC))

    time.sleep(0.5)