My Garadget + MQTT + OpenHAB Setup

[rossko57]

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?

[HaKuNa (Remo M)]

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

[rossko57]

@HaKuNa

1585928860: Received SUBSCRIBE from 1c4f52b1-ccdd-4e3e-b366-0683051246e2 1585928860: garadget/garage/status (QoS 1)

That appears to be your openHAB subscribing to a topic

@HaKuNa

1585928872: Received PUBLISH from Garage (d0, q0, r1, m0, ‘garadget/Garage/status’, … (69 bytes))

That appears to be your device publishing to a topic.

Topics do not match (character case matters)

[HaKuNa (Remo M)]

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

[Falk (Falk S.)]

@JimT

Another reason for polling the status, is to get an updated “garage time” (how long it has remained in the current state). Although this can be calculated independently perhaps.

So for those who don’t need to know the light level or the “garage time”, the cron rule can be removed.

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

[JimT (jimtng)]

@Falk

Time cron “0 0/1 * * * ?” // every minute

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.

[Falk (Falk S.)]

@JimT

By the way, you can just do

Time cron "0 * * * * ?"

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