import machine
import dht 
import time 
d = dht.DHT22(machine.Pin(5)) 
UPDATE_TIME_INTERVAL = 5000  # in ms 
last_update = time.ticks_ms() 
time.ticks_ms() - last_update >= UPDATE_TIME_INTERVAL 
d.measure() 
t = d.temperature() 
h = d.humidity() 
dht_readings = {'field1':t, 'field2':h} 
       
while True:
    if t > 40:
      print(dht_readings)
      p2=machine.Pin(12,machine.Pin.OUT)
      buzzer=machine.PWM(p2)
      buzzer.freq(1024)
      buzzer.duty(500)
      time.sleep(0)
      buzzer.duty(0)
      buzzer.deinit()

    else :
      print(dht_readings)