Openhab MQTT Example

[John]

@Marcus PiDome also supports the mqtt gateway next to the serial gateway, so no need to switch. As far as i know, but i'm not an openhab expert, it should work fine as a mqtt client to connect to the mysensors mqtt gateway.

See this thread for some examples: http://forum.mysensors.org/topic/303/mqtt-broker-gateway

The developer of the MQTT gateway has posted some examples in the above thread on how you should be able to use it.

Cheers!

[Marcus]

@John Thank u very much. I think i will stop with Openhab and give PiDome a try. it seems to be better described what to do to get it run.

In the thread u mentioned i looked for some examples but didnt get them to work and no one could help.

[b0rmann]

@Marcus mqtt client gateway is not serial way :)

i have mqtt-client-gateway + raspi (mosquitto + openhab + nodered)

[John]

@Marcus Wish i could help, too bad it doesn't work. Others are using it successfully as far as i know. Maybe different openhab version install. Well, let me know if there are any issues or help needed with PiDome.

[tboha]

@Marcus: Sorry I'm in a hurry so...
But what to do now??? -> is your broker really ok?

1. open two terminal windows on your Raspberry.

2. one window:

   mosquitto_sub -t /test -v

3. second window:

   mosquitto_pub -t /test -m "test message"

If it's all fine, the test message should show up in the first window.

How do i connect mosquitto to Openhab?
OpenHab -> mosquitto
If your still got the OpenHab sitemap from above, the swtiches 1+3 should be functional like desribed, switch 2 will result in an errormessage in the log (as "intended").

Reverse direction (mosquitto -> Openhab).
You may populate your broker with some messages for the given topic.
e.g. mosquitto_pub -t MyMQTT/20/255/V_SKETCH_NAME -m "fake sketch name"

How do i connect mosquitto to Openhab?
I use the serial Gateway connected via USB to my Raspberry and a little Node.js script.
If you are interested - let me know.

[Marcus]

Thank u anyway for your help @tboha . I think this is too much complicated. I tried ur last idea, but i got connection refused error. Really frustrating.... I want to see results. I hope pidome gave me faster results than openhab.

[tboha]

Connection refused means (in 99%) your broker is not up or you got the wrong address.
I supposed you to run mosquitto_sub/pub on the same machine your broker runs on.
On a different machine you have to add the host address like:

mosquitto_sub -h 192.168.1.10 -t /topic -m "message".

No - at last its not really complicated, but I think you had just a bad start. MySensors and OpenHab tend to start right out of the box - but you need the right box......

[Marcus]

Please stop helping me now. Now i have pidome and the first sensor is running after 30 minutes with my ethernet mqtt gateway ;-)

That is what i want. Maybe one day there are nice tutorials for Openhab. Thank u very much for trying to help. If i now start with mosquitto to get openhab run is the same as when i make a patch for a patch....

It seems that pidome has wait for me it is really nice and not much complicated.

This thread can be closed here.

[C.r.a.z.y.]

@Marcus Try Tim's files and JAR file for serial openHab http://forum.mysensors.org/topic/655/serial-gateway-connection-to-openhab/2
I added a motion sensor and its fine.

[John]

@Marcus Good to see you have it working! The MySensors MQTT plugin and serial drivers are quite stable. Some parts of the server can behave a little strange, cause still in heavy development.

[C.r.a.z.y.]

@John There was a problem with serial....1.6.1.jar it doesnt show this correctly;

ArduinoUpdate -> 0;0;3;0;9;read: 14-14-0 s=1,c=1,t=16,pt=0,l=1:0
14;1;1;0;16;0

i think its related with baud rate for jar file because i saw  these kind of things in terminal ����BO�"U��²e��B&��i�

[John]

@C.r.a.z.y. That's highly possible, or there was a wrong choice of encoding at the wrong moment.

[Hacker007]

Hi.
I have OpenHAB, MQTT and battery powered units (http://iot-playground.com/2-uncategorised/10-low-power-door-window-sensor). I cannot receive battery status in Openhab (other things from the same unit are transmitted OK). What is wrong?

1. I send: gw.sendBatteryLevel(batLevel);
2. Number node4_bat "Bat [%.1f %%]" <temperature> (node4, GBattery) {mqtt="<[mysensor:MyMQTT/4/255/50:state:default]"}

I have seen somewhere that battery state is transmitted via '50'?!?

[Hacker007]

Hi. I have figured it out. It is presented as "mysensor:MyMQTT/4/255/V_:state:default". No number in current version from mysensors!!!
The next step was to edit MyMQTT.cpp: char V_50[] PROGMEM = ""; into char V_50[] PROGMEM = "50";. Now I get battery status via "mysensor:MyMQTT/4/255/V_50:state:default".

So in conclusion I have answered my own questions and have solved them...

[francis]

coming back to the initial issue, is there anyone that can post items and maps configuration to test the binary switch example of mysensors? my configuration is arduino uno+w5100 and mqtt gateway, opnhab on windows pc on the same network