My Garadget + MQTT + OpenHAB Setup

Tutorials & Examples Solutions
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21

Have you looked in your openhab.log and events.log for clues, when the garadget publish its status message?
Have you installed the JSONPATH service?

22

Hi

JSONPATH is installed via PaperUI -> Add-ons -> Transformations

openhab.log (DEBUG for binding MQTT enabled):

2020-04-03 17:52:05.799 [INFO ] [.reconnect.PeriodicReconnectStrategy] - Try to restore connection to '127.0.0.1'. Next attempt in 60000ms
2020-04-03 17:52:05.802 [INFO ] [.transport.mqtt.MqttBrokerConnection] - Starting MQTT broker connection to '127.0.0.1' with clientid 1c4f52b1-ccdd-4e3e-b366-0683051246e2

events.log:

2020-04-03 17:52:05.864 [hingStatusInfoChangedEvent] - 'mqtt:topic:mosquitto:garage' changed from OFFLINE (BRIDGE_OFFLINE) to ONLINE
23

That appears to be your openHAB subscribing to a topic

That appears to be your device publishing to a topic.

Topics do not match (character case matters)

1 Like
24

@rossko57
That’s it. You saved my day, thx a lot.

1 Like
25

Well, first of all thanks for these useful hints to get garadget working via MQTT.
I am interested in polling the status and get these information. The rule example has been deleted. Being a MQTT beginner, I was not able to figure out how to do that. How the rule look like?

Thanks and happy eastern

EDIT:
Found it with

rule "Poll garadget status via MQTT"
	when
	    Time cron "0 * * * * ?"   // every minute
	then
		val mqttActions = getActions("mqtt","mqtt:systemBroker:embedded-mqtt-broker")
		mqttActions.publishMQTT("garadget/Garagentor/command","get-status")
end
26

By the way, you can just do

Time cron "0 * * * * ?"

* means every possible value, which in the minute field means every minute. You could also say */1 but that would be redundant.
For every 5 minutes you’d use */5, and so on.

27

Thanks @jimtng. That’s right and is changed accordingly.