import time
from machine import ADC, I2C, SoftI2C, Pin, Timer, RTC
from pico_i2c_lcd import I2cLcd

import math

i2c = SoftI2C(sda=Pin(20),scl=Pin(19),freq=400000)
addr = i2c.scan()[0]
print(hex(addr))

lcd = I2cLcd(i2c, addr, 16, 2)
lcd.clear()

rtc = RTC()

button = Pin(12,Pin.IN)
sensor = ADC(26)
check = True
def display(button):
    global check
    if check:
        lcd.clear()
        check = False
        return
    check = True
    BETA = 3950; # should match the Beta Coefficient of the thermistor
    analogValue = sensor.read_u16()
    celsius = 1 / (math.log(1 / (65535. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15
    lcd.putstr(f"{celsius}")
    time.sleep(1)
    print(celsius)
    print(sensor.read_u16())
    

button.irq(display, trigger=button.IRQ_FALLING)