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

# MQTT Server Parameters
MQTT_CLIENT_ID = "mqttx_b174a277"
MQTT_BROKER    = "broker.emqx.io"
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC     = "current_low/deny/led"

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

# MQTT Server connection
print("Connecting to MQTT server... ", end="")
client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, user=MQTT_USER, password=MQTT_PASSWORD)
client.connect()
print("Connected!")

led = Pin(19, Pin.OUT)
while True:
  led.on()
  time.sleep(0.5)
  led.off()
  time.sleep(0.5)

if led.on():
   print("LED ON!")
   else:
    print("LED OFF!") 

# Build the messege in JSON fortmat and send the messege
led_state = ""

while True:
    print("")