Merge pull request #3 from AdamWhittingham/additional-output

Additional output
Thanks Adam, your help is appreciated.

src/Dockerfile

@@ -12,7 +12,7 @@
 #
 # docker run --name rtl_433 -d -e MQTT_HOST=<mqtt-broker.example.com>   --privileged -v /dev/bus/usb:/dev/bus/usb  <image>
 
-FROM python:3.6.3
+FROM python:3.7
 MAINTAINER Marco Verleun
 
 LABEL Description="This image is used to start a script that will monitor for events on 433,92 Mhz" Vendor="MarCoach" Version="1.0"

src/config.py.example

@@ -1,9 +1,10 @@
 # Config section
-# Uncomment these lines if your MQTT server requires authentication
-#MQTT_USER="mqtt-user"
-#MQTT_PASS="mqtt-password"
+# Fill in the next 2 lines if your MQTT server expected authentication
+MQTT_USER=""
+MQTT_PASS=""
 MQTT_HOST="mqtt.example.com"
 MQTT_PORT=1883
 MQTT_TOPIC="sensors/rtl_433"
 MQTT_QOS=0
+DEBUG=False # Change to True to log all MQTT messages
 # End config section

src/rtl2mqtt.py

@@ -7,24 +7,37 @@ import time
 import paho.mqtt.client as mqtt
 import os
 import json
+import re
 
 from config import *
 
-rtl_433_cmd = "/usr/local/bin/rtl_433 -G -F json" # linux
+rtl_433_cmd = "/usr/local/bin/rtl_433 -F json"
+
+important_rtl_output_re = re.compile("^(Found|Tuned)")
 
 # Define MQTT event callbacks
 def on_connect(client, userdata, flags, rc):
-    print("Connected with result code "+str(rc))
+    connect_statuses = {
+        0: "Connected",
+        1: "incorrect protocol version",
+        2: "invalid client ID",
+        3: "server unavailable",
+        4: "bad username or password",
+        5: "not authorised"
+    }
+    print("MQTT: " + connect_statuses.get(rc, "Unknown error"))
 
 def on_disconnect(client, userdata, rc):
     if rc != 0:
-        print("Unexpected disconnection.")
+        print("Unexpected disconnection")
+    else:
+        print("Disconnected")
 
 def on_message(client, obj, msg):
     print(msg.topic + " " + str(msg.qos) + " " + str(msg.payload))
 
 def on_publish(client, obj, mid):
-    print("mid: " + str(mid))
+    print("Pub: " + str(mid))
 
 def on_subscribe(client, obj, mid, granted_qos):
     print("Subscribed: " + str(mid) + " " + str(granted_qos))
@@ -33,43 +46,57 @@ def on_log(client, obj, level, string):
     print(string)
 
 # Setup MQTT connection
-
 mqttc = mqtt.Client()
-# Assign event callbacks
-#mqttc.on_message = on_message
+
 mqttc.on_connect = on_connect
-#mqttc.on_publish = on_publish
 mqttc.on_subscribe = on_subscribe
 mqttc.on_disconnect = on_disconnect
 
-# Uncomment to enable debug messages
-#mqttc.on_log = on_log
+if DEBUG:
+    print("Debugging messages enabled")
+    mqttc.on_log = on_log
+    mqttc.on_message = on_message
+    mqttc.on_publish = on_publish
+
+if MQTT_PASS:
+    print("Connecting with authentication")
+    mqttc.username_pw_set(MQTT_USER, password=MQTT_PASS)
+else:
+    print("Connecting without authentication")
 
-# Uncomment the next line if your MQTT server requires authentication
-#mqttc.username_pw_set(MQTT_USER, password=MQTT_PASS)
 mqttc.connect(MQTT_HOST, MQTT_PORT, 60)
-
 mqttc.loop_start()
 
 # Start RTL433 listener
-rtl433_proc = subprocess.Popen(rtl_433_cmd.split(),stdout=subprocess.PIPE,stderr=subprocess.STDOUT,universal_newlines=True)
-
+print("Starting RTL433")
+rtl433_proc = subprocess.Popen(rtl_433_cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True)
 
 while True:
     if rtl433_proc.poll() is not None:
+        print("RTL433 exited with code " + str(rtl433_proc.poll()))
         sys.exit(rtl433_proc.poll())
+
     for line in iter(rtl433_proc.stdout.readline, '\n'):
+        if DEBUG:
+            print("RTL: " + line)
+        elif important_rtl_output_re.match(line):
+            print(line)
+
         if rtl433_proc.poll() is not None:
+            print("RTL433 exited with code " + str(rtl433_proc.poll()))
             sys.exit(rtl433_proc.poll())
+
         if "time" in line:
-            mqttc.publish(MQTT_TOPIC, payload=line,qos=MQTT_QOS)
+            mqttc.publish(MQTT_TOPIC, payload=line, qos=MQTT_QOS, retain=True)
             json_dict = json.loads(line)
             for item in json_dict:
                 value = json_dict[item]
                 if "model" in item:
-                    subtopic=value
+                    subtopic = value
+                if "id" in item:
+                    subtopic += "/" + str(value)
 
             for item in json_dict:
                 value = json_dict[item]
                 if not "model" in item:
-                    mqttc.publish(MQTT_TOPIC+"/"+subtopic+"/"+item, payload=value,qos=MQTT_QOS)
+                    mqttc.publish(MQTT_TOPIC+"/"+subtopic+"/"+item, payload=value, qos=MQTT_QOS, retain=True)