CODEWITHSUNDEEP
home-automationopenhab
lsc
lsc

Reputation: 681

Connecting MQTT server with OpenHab

As a sample test, I just want to ON/OFF a bulb using OpenHab via wifi. So I connect the hivemq server and openhab as follows in the openhab configuration. 

mqtt:broker.url=tcp://127.0.0.1:1883
mqtt:broker.clientId=openhab

So when starting openhab I can see following in the console. 

2016-09-01 19:18:11.692 [INFO ] [.io.transport.mqtt.MqttService] - MQTT Service initialization completed.
2016-09-01 19:18:11.695 [INFO ] [o.i.t.m.i.MqttBrokerConnection] - Starting MQTT broker connection 'broker'
2016-09-01 19:18:13.092 [INFO ] [penhab.io.rest.RESTApplication] - Started REST API at /rest

So it seems openhab and hivemq connected successfully. Then I created following file on openhab distribution.

home.sitemap

sitemap home label="My House"
{
    Frame label="ESP Module"{
        Group item=FF_Bed label="Front Porch"
    }
}

home.items

Group All
Group gGF       (All)
Group gFF       (All)

Group GF_Living     "Living Room"   <video>     (gGF)
Group FF_Bed        "Bedroom"       <bedroom>   (gFF)

Dimmer Light_GF_Living_Table        "Table"         (GF_Living, Lights)     {mqtt="<[mybroker:/myHome/Table:command:ON]"}
Switch Light_FF_Bed_Ceiling         "Ceiling"       (FF_Bed, Lights)        {mqtt="<[mybroker:/myHome/doorbell:command:ON]"}

/* Locations */
Location HomeLocation  MyHome

esp-pic.map

0=Still
1=Motion

I can see above specified items on my openhab site. But when I click on the light there are no updates from the MQTT server. But I can see following on OpenHab console. 

2016-09-02 12:00:35.484 [INFO ] [runtime.busevents             ] - Light_FF_Bed_Ceiling received command ON

So why it doesn't publish this change to HiveMQ topic?

Thanks.

Upvotes: 0

Views: 878

Answers (1)

SebastianK
SebastianK

Reputation: 782

You can only have inbound or outbound mqtt messages in openHAB.

Your current configuration in home.items is inbound because of the "<"-sign. If you want to a click on the switch to cause a mqtt-message to be published to the broker, you have to change it to the ">"-sign.

For reference have look on this page: https://github.com/openhab/openhab/wiki/MQTT-Binding and search for inbound or outbound messages

Upvotes: 3

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