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

SSID = "Wokwi-GUEST"
PASSWORD = ""



def connect_wifi():
    print("Connecting to Wi-Fi...")
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)
    while not wlan.isconnected():
        pass
    print("Connected to wifi")


def main():
    connect_wifi()
    client = MQTTClient("mostafa","broker.hivemq.com") # handshake
    client.connect() # if connection unsuccessfull -> error
    print("Connected to broker")
    while True:
        client.publish("esp32/heartbeat","i'm alive")
        print("Done publishing")
        time.sleep(2)

main()


#   client = MQTTClient("wokwi-esp32", MQTT_BROKER)
    # client.connect()
    # print("MQTT connected")