add option to disable analog event publishing

config.ini

@@ -9,3 +9,4 @@ digitalInputTopicPrefix = dt1/di
 analogInputEventTopicPrefix = dt1/ai/event
 analogInputPeriodicTopicPrefix = dt1/ai/periodic
 analogInputPublishPeriod = 10.0
+disableAnalogInputEventPublishing = true

readme.md

@@ -30,12 +30,14 @@ Configuration is done using a configuration file
     analogInputEventTopicPrefix = dt1/ai/event
     analogInputPeriodicTopicPrefix = dt1/ai/periodic
     analogInputPublishPeriod = 10.0
-
+    disableAnalogInputEventPublishing = true
 
 ### Operation details
 
 While the input and discrete input registers are scanned with the configured scanrate, an action on a coil according to a received message is issued immediately. At the same time the all input registers are scanned.
 
+Using a configuration option it is possible to disable the publishing of analog change event - if only periodic information (like for a thermometer or so) is required.
+
 The MQTT messages related to change events of input or discrete input registers are marked as //retained//.
 
 

src/MqttEventPublisher.py

@@ -12,6 +12,7 @@ def mqttEventPublisherStart(config, processImage):
 class MqttEventPublisher(AbstractMqttPublisher):
     def __init__(self, config, processImage):
         super().__init__(config, processImage)
+        self.disableAnalogInputEventPublishing = self.config["disableAnalogInputEventPublishing"].lower() in [ "true", "on" ]
 
     def localLoop(self):
         while True:
@@ -19,6 +20,7 @@ class MqttEventPublisher(AbstractMqttPublisher):
                 self.processImage.wait()
 
                 discreteInputChangeset = self.processImage.getChangedDiscreteInputs()
+                if not self.disableAnalogInputEventPublishing:
                     analogInputChangeset = self.processImage.getChangedAnalogsInputs()
 
             for discreteInputChangeItem in discreteInputChangeset:
@@ -30,6 +32,7 @@ class MqttEventPublisher(AbstractMqttPublisher):
                                     str(discreteInputChangeItem[1][0]),
                                     retain=True)
 
+            if not self.disableAnalogInputEventPublishing:
                 for analogInputChangeItem in analogInputChangeset:
                     logger.debug("Analog input {} changed from {} to {}"
                                 .format(analogInputChangeItem[0],