import dht
from machine import Pin
import wifi
import time
from umqtt.simple import MQTTClient

# Initialize DHT sensor on pin 12
d = dht.DHT22(Pin(12, Pin.IN))

# Connect to Wi-Fi
wifi.connect_ap()

# Connect to MQTT Broker
# Use MD5 to encrypt the name of the topic to identify on MQTT
client_id = "650ea76379ff486f95098f7fb3e361f2.s2.eu.hivemq.cloud"
server = "broker.hivemq.com"
client = MQTTClient(client_id, server)
client.connect()

def loop():
    while True:
        # Measure temperature and humidity
        d.measure()
        temperature = d.temperature()
        humidity = d.humidity()

        print("Send data to broker")

        # Publish temperature data to MQTT broker
        client.publish("IoT_MQTT_TemperatureA", str(temperature))

        # Uncomment the line below if you want to publish humidity data as well
        # client.publish("IoT_MQTT_HumidityA", str(humidity))

        # Send data every 5 seconds
        time.sleep(2)

if __name__ == "__main__":
    loop()