import network
import time
from machine import Pin
from time import sleep
from dht import DHT22
from machine import Pin, time_pulse_us
from time import sleep_us, sleep

dht = DHT22(Pin(15)) 
echo = Pin(26, Pin.IN)
trigger = Pin(27, Pin.OUT)
relay = Pin(2, Pin.OUT)


print("Connecting to WiFi", end="")
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
wlan.connect("Wokwi-GUEST", "")
while not wlan.isconnected():
  print(".", end="")
  time.sleep(0.1)
print(" Connected!")
print(wlan.ifconfig())

def measure_distance():
    dht.measure()
    temp = dht.temperature()
    hum = dht.humidity()
    trigger.low()
    sleep_us(2)
    trigger.high()
    sleep_us(10)
    trigger.low()

    pulse_duration = time_pulse_us(echo, Pin.high)
    distance = pulse_duration * 0.0343 / 2
    print(f"Temperature: {temp}°C   \nHumidity: {hum}% \n")   
    return distance

def main():
    while True:
        distance = measure_distance()
        print("Distance: {:.2f} cm".format(distance))
        if distance > 200 :
            relay.on()
            print("LED HIDUP\n")
        else:
            relay.off()
            print("LED MATI\n")
        sleep(2),
if __name__ == "__main__":
    main()