import time
from math import log
from machine import Pin, ADC, PWM
led_1 = Pin(0, Pin.OUT)
buzzer = Pin(3, Pin.OUT)
temp_sensor = ADC(26)
light_sensor = ADC(27)
def adc_to_C(x):
    return(1 / (log(1/(65535/x - 1))/3950 +1/298.15) - 273.15)

while True:
    digital_val = temp_sensor.read_u16()
    analog_val = float ((digital_val/(65535-1)) *3.3)
    temperature = adc_to_C(digital_val)

    photo_val = light_sensor.read_u16()
    light = round(photo_val/65535*100,2)

    if temperature > 30:
        led_1.value(analog_val)
    else:
        led_1.value(0)

    if light > 50:
        buzzer.value(1)
    else:
        buzzer.value(0)
    time.sleep(0.2)