from machine import Pin, ADC, SoftI2C
import ssd1306
import time

adc = ADC(Pin(26))
# Configuracion i2c por software
i2c = SoftI2C(sda = Pin(0), scl = Pin(1), freq = 100000)

time.sleep(0.5)
oled = ssd1306.SSD1306_I2C(128, 64, i2c)
while True:

    raw = adc.read_u16()
    v_out = raw * (3.3 / 65535.0)

    # Restringir el voltaje 
    v_out = max(0.1, min(3.1, v_out))

    # Reconstrucción del voltaje del sensor 
    v_sensor = (v_out + 1.025) / 3.75
    
    # Cálculo de la temperatura
    temp = (v_sensor - 0.5) * 100.0

    print(f"Voltaje:{v_out:.2f},Temperatura:{temp:.1f}")
    time.sleep(0.2)

    oled.fill(0)
    oled.text(f"Voltaje:{v_out:.2f}V", 0, 10)
    oled.text(f"Temperatura:{temp:.1f} C", 0, 30)
    oled.show()
    time.sleep(0.2)