Sonoff Th16 Easyesp mqtt openhab2

Tutorials & Examples
22

looks good

now from the openHAB console, check the State of the 2 items:

smarthome:items list Temperature_Vaerksted
smarthome:items list Humidity_Vaerksted

What is the output?

23

image.png1600×900 61.4 KB

24

State=NULL means that the items haven’t received any updates with values from their binding
You need to focus now on your items configuration… something is not working there…
Strange… from the configs that I have seen so far, it should have worked…

Manually publish a value to the MQTT topic that your item is bound to:
With item definition:

Number Temperature_Vaerksted "Temperatur værksted [%s %%]" <temperature> { mqtt="<[mybroker:/Sonoffth1/Temp_Vaerksted/Temperature:state:default]" }

Push a message to MQTT:

mosquitto_pub -u openhab -P habopen -t /Sonoffth1/Temp_Vaerksted/Temperature -m 99

and check again the status of the item (if it became 99) smarthome:items list Temperature_Vaerksted

25

here is a screndump from mqqtfx

image.png1600×900 87.1 KB

26

when i use

mosquitto_pub -u openhab -P habopen -t /Sonoffth1/Temp_Vaerksted/Temperature -m 99

it stil stat=NULL

27

argggg :slight_smile:

Question: Have you installed the Add-on: MQTT Action?

MQTT_Action.png831×350 21.8 KB

If yes: Uninstall it, restart OH2 and check again

28

yes i have and now uninstalled and oh2 reboot but still state=NULL

29

if i publish this /Sonoffth1/Temp_Vaerksted/Temperature 96.00 from mqttfx

i get this /Sonoffth1/Temp_Vaerksted/Temperature 96.00 (null)

and the sonoff is publish this /Sonoffth1/Temp_Vaerksted/Temperature 10.40

but still state=NULL

30

Change the following in your /etc/openhab2/services/mqtt.cfg

mybroker.url=tcp://127.0.0.1:1883
mybroker.clientId=OH2

I replicated your setup in one of my test systems and all work fine…

item:

Number Temperature_Test "Temperature Test [%s %%]" <temperature> {mqtt="<[mybroker:/Sonoffth1/Temp_Test/Temperature:state:default]"}

sitemap:

sitemap mqtt label="MQTT Test" {
	Frame {
		Text item=Temperature_Test label="Test temperature [%s °C]" icon="temperature"
	}
}

mqtt.cfg:

mybroker.url=tcp://127.0.0.1:1883
mybroker.clientId=rPi3
mybroker.user=openhab
mybroker.pwd=habopen
mybroker.qos=0
mybroker.retain=false
mybroker.async=true

All work fine and when I send:

mosquitto_pub -u openhab -P habopen -t /Sonoffth1/Temp_Test/Temperature -m 95

I get:

==> openhab.log <==
2017-02-13 00:12:58.389 [TRACE] [t.mqtt.internal.MqttBrokerConnection] - Received message on topic '/Sonoffth1/Temp_Test/Temperature' : 95

==> events.log <==
2017-02-13 00:12:58.438 [ItemStateChangedEvent     ] - Temperature_Test changed from NULL to 95
31

Try also:
delete the file /var/lib/openhab2/config/org/openhab/mqtt.config and restart OH2

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32

Happy happy me it is working you are my herro tanks again :slight_smile: :wink: :slight_smile: :slight_smile:

33

:slight_smile: :+1:
what was wrong? (maybe stale configs stored in the /var/lib/openhab2/config/org/openhab/mqtt.config file?)

1 Like
34

I deletet the mqqt.config file and it is working :smiley::smiley::smiley::+1::+1::+1:

1 Like
35

Yeah… unfortunately this happens sometimes…
This is because when you edit /etc/openhab2/services/mqtt.cfg file you may put some settings there that are kept in openHAB (and stored in /var/lib/openhab2/config/org/openhab/mqtt.config)
When you change the mqtt.cfg file and create new settings, the old ones are not removed from mqtt.config and this can cause problems…

Anyway… good luck with your next steps in developing your openHAB 2 environment :slight_smile:
I think that you know some more about MQTT now, so you could also help others when they get stuck (this is how the community grows :ballot_box_with_check:

1 Like
36

I think this is a major bug. :open_mouth:
Is this documented already?

37
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