Hi,
this is my first try to connect a sensor via MQTT to HA. The Script is reading the Sensor-Data and is sending this to HA. But now I’m lost. How to use this data in a automation oder lovelace? There is no entity created which I can use. Any help is appreciated. This what I have so far:
sensor.yaml
- platform: mqtt
state_topic: "kitchen/light_intensity"
name: Kitchen Light Intensity
device_class: illuminance
python-script (running on a different Raspi3)
#!/usr/bin/python3
# Import package
import time
import paho.mqtt.client as mqtt
import paho.mqtt.publish as publish
import board
import adafruit_bh1750
# Def
broker = "***"
username='***'
password='***'
clientid='python-mqtt-bh1750'
state_topic = "kitchen/light_intensity"
delay = 30
def readSensor():
i2c = board.I2C()
lightsensor = adafruit_bh1750.BH1750(i2c)
return lightsensor.lux
# MQTT
client = mqtt.Client(clientid)
client.username_pw_set(username, password)
client.connect(broker)
client.loop_start()
while True:
print(readSensor())
time.sleep(1)
sensor_data = readSensor()
client.publish(state_topic, str(sensor_data))
time.sleep(delay)
