initial

temp-script.service

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+[Unit]
+Description=1wire to mqtt
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/python3 /home/pi/temp.py
+Restart=on-failure
+RestartSec=5000ms
+
+[Install]
+WantedBy=multi-user.target

temp.py

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+import Adafruit_DHT
+import time
+from datetime import datetime
+#from paho.mqtt import client as mqtt_client
+import paho.mqtt.publish as publish
+
+DHT_SENSOR = Adafruit_DHT.DHT22
+DHT_PIN = 4
+PROBE_NAME = "PI4"
+
+broker = '10.0.3.37'
+port = 1883
+topic = "/dht/kueche"
+client_id = f'dht-script'
+
+#client= mqtt_client.Client(client_id)                           #create client object
+#client.connect(broker,port)                                 #establish connection
+
+#while True:
+#    humidity, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
+#    infot = client.publish(topic+"/humidity", str(humidity));
+#    infot.wait_for_publish()
+#    time.sleep(10)
+
+while True:
+    humidity, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
+    if humidity is not None and temperature is not None:
+        print("T={0:0.1f} H={1:0.1f}".format(temperature, humidity))
+        if humidity <= 100:
+            publish.single(topic+"/temperature", str(round(temperature,1)), hostname=broker)
+            publish.single(topic+"/humidity", str(round(humidity,1)), hostname=broker);
+        else:
+            print("corrupted transmission");
+    else:
+        print("Failed to retrieve data from humidity sensor")
+    time.sleep(30)