from machine import Pin
import time
import dht
import network
import urequests

# ===== WIFI =====
SSID = "Wokwi-GUEST"
PASSWORD = ""

wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect(SSID, PASSWORD)

print("Conectando ao WiFi...", end="")
while not wifi.isconnected():
    print(".", end="")
    time.sleep(0.5)

print("\nConectado!")

# ===== THINGSPEAK =====
API_KEY = "47NDQO6XHUSSV6M6"
URL = "http://api.thingspeak.com/update"

# ===== LEDs =====
led_vm = Pin(13, Pin.OUT)
led_az = Pin(12, Pin.OUT)
led_vr = Pin(11, Pin.OUT)

# ===== SENSOR =====
sensor = dht.DHT22(Pin(15))

while True:
    try:
        sensor.measure()
        temp = sensor.temperature()
        hum = sensor.humidity()

        print("Temperatura:", temp)
        print("Umidade:", hum)

        # Desliga LEDs
        led_vm.off()
        led_az.off()
        led_vr.off()

        # Controle por temperatura
        if temp < 20:
            led_az.on()
        elif temp < 30:
            led_vr.on()
        else:
            led_vm.on()

        # ===== ENVIO PARA THINGSPEAK =====
        resposta = urequests.get(
            f"{URL}?api_key={API_KEY}&field1={temp}&field2={hum}"
        )
        resposta.close()

        print("Dados enviados!")

    except Exception as e:
        print("Erro:", e)

    time.sleep(15)  # ThingSpeak exige mínimo ~15s