from machine import Pin, ADC, PWM
import dht
import time

dht_pin = Pin(4) 

sensor = dht.DHT22(dht_pin)


user_threshold = 50

potentiometer_pin = 34

potentiometer = ADC(Pin(potentiometer_pin)) 
potentiometer.width(10)           

buzzer_pin = Pin(15)           
buzzer = PWM(buzzer_pin)

Led   = Pin(18,Pin.OUT)
Led.value(0)

buzzer.freq(1000)  
buzzer.duty(0)  


while True:
      
        sensor.measure()
        temperature = sensor.temperature()

        print('Temperature: {:.1f}°C'.format(temperature))

        pot_value = potentiometer.read()
        
        if temperature > user_threshold:
            buzzer.duty(pot_value)
            Led.value(1)
            print("Alert System is On !!")
        else:
            buzzer.duty(0)
            Led.value(0)
            print("Alert System is Off !!")
        time.sleep(1)