import network
import time
from machine import Pin
from umqtt.simple import MQTTClient

# MQTT SERVER 
SERVIDOR   = "broker.hivemq.com"

######TROQUE O TÓPICO E NOME DO ESP 
SERVIDOR   = "broker.hivemq.com"
MQTT_TOPICO_BOTAO = "botao3M"
NOMEDOESP32 = "ESP3M_2"

#WiFi Senha
SSID = 'Wokwi-GUEST'
SENHA = ''
#####

print("Conectando-se ao WiFi", end="")
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect(SSID, SENHA)
while not sta_if.isconnected():
  print(".", end="")
  time.sleep(0.1)
print(" Conectado!")

print("Conectando-se ao servidor MQTT... ", end="")
client = MQTTClient(NOMEDOESP32, SERVIDOR, 1883)
client.connect()

print("Conectado!")
# led setup

led = Pin(4, Pin.OUT)

def acende_led(topic, msg):
    if msg.decode() == 'A':
        led.value(1)
    if msg.decode() == 'B':
        led.value(0)
        
# mqtt subscription
client.set_callback(acende_led)
client.subscribe(MQTT_TOPICO_BOTAO)
while True:
    client.check_msg()
    time.sleep(5)