57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
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import time
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import datetime
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import subprocess
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# Import Adafruit_DHT
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import Adafruit_DHT
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# Import MQTT client.
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import paho.mqtt.publish as publish
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import paho.mqtt.client as paho
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# MQTT credentials
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#mqtt_username = 'homeassistant' # MQTT client username
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#mqtt_password = '3355' # MQTT client password
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#client_id = 'temperature' # unique client_id
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mqtt_broker = "raspberrypi" # broker address, usually your HASS IP address
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# DHT config
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DHT_PIN = 4 # GPIO nr
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DHT_SENSOR = Adafruit_DHT.DHT22
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# connection event
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def on_connect(client, data, flags, rc):
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print('Connected: ' + str(rc))
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# create the MQTT client
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client = paho.Client(protocol=paho.MQTTv31) # * set a random string (max 23 chars)
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# Command topic
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temperature_topic = 'weathersensors/emily/temperature'
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humidity_topic = 'weathersensors/emily/humidity'
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# client connection
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#client.username_pw_set(mqtt_username, mqtt_password) # MQTT server credentials
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client.connect(mqtt_broker) # MQTT server address
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client.loop_start()
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while True:
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# Get Temperature from DHT
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_, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
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# Get Humidity from DHT
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humidity, _ = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
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# Publish our data
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client.publish(temperature_topic, temperature)
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client.publish(humidity_topic, humidity)
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time.sleep(30)
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# Output data to screen
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# print temperature
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# print humidity
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