Support multiple sensors.

logger.rb

@@ -13,28 +13,29 @@ sensors_config = config['sensors']
 
 # Connect to the MQTT broker
 MQTT::Client.connect(config['mqtt_server']) do |client|
-  # For each sensor
-  sensors_config.each_key do |sensor_topic|
-    sensor = sensors_config[sensor_topic]
-    # Subscribe its topic
-    client.get(sensor_topic.to_s) do |topic, message|
-      # Log the output
-      puts "#{sensor["name"]}: #{message}"
+  # Subscribe topics
+  client.get('zigbee2mqtt/#') do |topic, message|
+    # Only observe configured sensors
+    next unless sensors_config.keys.include?(topic)
 
-      payload = JSON.parse(message)
+    sensor = sensors_config[topic]
 
-      # Log payload in a csv file
-      CSV.open('data.csv', 'ab') do |csv|
-        csv << [Time.now,
-                sensor["name"],
-                topic,
-                payload['humidity'],
-                payload['temperature'],
-                payload['pressure'],
-                payload['battery'],
-                payload['voltage'],
-                payload['linkquality']]
-      end
+    # Log the output
+    puts "#{sensor['name']}: #{message}"
+
+    payload = JSON.parse(message)
+
+    # Log payload in a csv file
+    CSV.open('data.csv', 'ab') do |csv|
+      csv << [Time.now,
+              sensor['name'],
+              topic,
+              payload['humidity'],
+              payload['temperature'],
+              payload['pressure'],
+              payload['battery'],
+              payload['voltage'],
+              payload['linkquality']]
     end
   end
 end