# libraries

import machine
import time
import dht

#define pins

d = dht.DHT22(machine.Pin(28))
red_led = machine.Pin(0, machine.Pin.OUT)
servo = machine.PWM(machine.Pin(17))
servo.freq(50)
blink_led = machine.Pin(13, machine.Pin.OUT)

#while loop

while True:
    d.measure()

    temp_celsius = d.temperature()

    if temp_celsius >= 20:
        red_led.value(1)
        servo.duty_u16(32767)
    else:
        red_led.value(0)
        servo.duty_u16(0)
        
    time.sleep(1)

    blink_led.value(1)
    time.sleep(0.5)
    blink_led.value(0)
    time.sleep(0.5)