upgrade to use parameters

add round function

README.md

@@ -1,2 +1,3 @@
 # raspberrypi-temp-sensors
 
+run the script with "/usr/bin/python /home/pi/mqtt/mqtt_publish_temp.py <roomName> <mqtt.username> <mqtt.password>

mqtt_publish_temp.py

@@ -1,6 +1,7 @@
 import time
 import datetime
 import subprocess
+import sys
 
 # Import Adafruit_DHT
 import Adafruit_DHT
@@ -12,7 +13,7 @@ import paho.mqtt.client as paho
 # MQTT credentials
 #mqtt_username  = 'homeassistant' # MQTT client username
 #mqtt_password = '3355' # MQTT client password
-#client_id = 'temperature' # unique client_id
+client_id = sys.argv[1] # unique client_id
 mqtt_broker = "raspberrypi" # broker address, usually your HASS IP address
 
 # DHT config
@@ -27,10 +28,10 @@ def on_connect(client, data, flags, rc):
 client = paho.Client(protocol=paho.MQTTv31)  # * set a random string (max 23 chars)
 
 # Command topic
-temperature_topic  = 'weathersensors/emily/temperature'
-humidity_topic = 'weathersensors/emily/humidity'
+temperature_topic  = 'weathersensors/' + client_id + '/temperature'
+humidity_topic = 'weathersensors/' + client_id + '/humidity'
 
-# client connection
+#client connection
 #client.username_pw_set(mqtt_username, mqtt_password)  # MQTT server credentials
 client.connect(mqtt_broker)  # MQTT server address
 
@@ -40,9 +41,10 @@ while True:
 
         # Get Temperature from DHT
         _, temperature = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
-
+        temperature = round(temperature, 2)
         # Get Humidity from DHT
         humidity, _ = Adafruit_DHT.read_retry(DHT_SENSOR, DHT_PIN)
+        humidity = round(humidity, 2)
 
         # Publish our data
         client.publish(temperature_topic, temperature)
@@ -53,4 +55,3 @@ while True:
         # Output data to screen
         # print temperature
         # print humidity
-