MQTT Broker gateway

adrianmihai83

Dear colleagues,

I have been using OpenHAB for a couple of days now, everything is going the right way, I've been using it with mosquitto broker for Windows, everything is solid, working well an fast. Decided to go a step further and use the MQTT Gateway presented here.

I've made a MQTT Gateway but get the "Not connected to broker" message from OpenHAB. First of all, the Gateway is an arduino uno with a w5100 shield on top in which I inserted the RF module (NRF24L01). Configured my ip in the gateway sketch (192.168.1.11) and uploaded to the arduino.

The first test was to connect with a phone (using MQTT from Playstore - used it many times before) and with a PC (using WMQTT Utility - used it many times before) and things don't look that promising, the problem beeing that client somethimes disconnects, and I cannot receive the message published in a topic (topic that I am subscribed to on the phone, pc and tablet using MQTT clients). I somethimes get the message in the serial monitor of the arduino, somethimes not.

Configured openhab.cfg to use the mqtt broker at 192.168.1.11 (before I was using mosquitto on pc 192.168.1.10 and working without problems) and everythime I change state of something in the dashboard of openhab I get this Broker Connection not Started even if after starting openhab I get serial output from arduino for some time, after this everything drops. Here is the serial output:serial_output.txt

Last two entries are: I opened the MQTT client on my phone, connected to MQTT Gateway and subscribed to topic home/# and the last one is me publishing from the phone to topic home/test the message "test message". None of the messages come back to the clients on the phone, tablet, pc, all of them subscribed to home/#

And here is the output from openhab: openhab_output.txt Ignore the samsung connect stuff, I have pull it off the network, i have managed to get it working well.

Best regards,

Adrian

Damme

@adrianmihai83 "home/openHAB/out/Temperature_GF_Corridor/state" is probobly long string, 47 chars. I have not investigated exacly how long it can be but keep it short. And the adress layout is also wrong, is should be something like MyMQTT/21/1/V_LIGHT . MQTTGateway is not compatible with the mosquitto broker you're using.

adrianmihai83

@Damme , your instructions were highly appreciated, got it working the first time. I will start creating the network now, I guess that everything will be ok. Will follow this forum for info and knowledge.

Now I will migrate openHAB to Rasberry Pi and add all the sensors one by one, there are a few.

A question though: I am using the humidity sketch and get MyMQTT/0/1/V_TEMP and MyMQTT/0/0/V_HUM reading fine but I cannot get sketch name... I don't know what I am doing wrong... Read above and I guess I have to wait for new version?

Thank you.

Adrian

Edit: Read more about Rasbery Pi capabilities regarding openHAB and I think I will use a cubietruck... Does anybody use one, cubieboard 2 or cubietruck?

Damme

@adrianmihai83 Sketch-name was a bug that I fixed in development branch, thought @hek updated master branch also. I can post the fix later on in here.

adrianmihai83

Maybe a dumb question but I don't figure things, here is my problem:

Uploaded the relay sketch to the same arduino that I used for humidity/temperature node (I don't know if this is relevant, the network has only one node, this one). Modified the pin that the relay is connected to: #define RELAY_1 4.

I am using the MQTT Gateway openHAB and cannot activate the relay...

Serial output of relay sketch is:
repeater started, id 0
send: 0-0-0-0 s=255,c=0,t=18,pt=0,l=3,st=ok:1.4
send: 0-0-0-0 s=255,c=3,t=6,pt=1,l=1,st=ok:0
send: 0-0-0-0 s=255,c=3,t=11,pt=0,l=5,st=ok:Relay
send: 0-0-0-0 s=255,c=3,t=12,pt=0,l=3,st=ok:1.0
send: 0-0-0-0 s=1,c=0,t=3,pt=0,l=3,st=ok:1.4

Serial output of gateway is:
Started!
0;0;3;0;9;read: 0-0-0 s=255,c=0,t=18,pt=0,l=3:1.4
0;0;3;0;9;read: 0-0-0 s=255,c=3,t=6,pt=1,l=1:0
0;0;3;0;9;read: 0-0-0 s=255,c=3,t=11,pt=0,l=5:Relay
0;0;3;0;9;read: 0-0-0 s=255,c=3,t=12,pt=0,l=3:1.0
0;0;3;0;9;read: 0-0-0 s=1,c=0,t=3,pt=0,l=3:1.4

My openHAB configuration is:

Switch node2_sw1 "sw2" (node2,all) {mqtt=">mysensor:MyMQTT/0/1/V_LIGHT:command:ON:1],>[mysensor:MyMQTT/0/1/V_LIGHT:command:OFF:0]"}

What am I doing wrong?

Thank you!

Francois

If I run the MQTTGateway my temperature shows in fahrenheit when I run the same nodes on a SerialGateway it is showing Celsius why will this be the case?

adrianmihai83

Downloaded from https://github.com/Damme/MQTTGateway latest MQTT Gateway (the one that responds on serial with "Ok!" not "Started!", with the modifications to MySensors.cpp) but no difference, still no sketch name and with the above settings, openHAB cannot control the relay sensor...

I used the same arduino that is working with Temp_Humidity sensor so the setup is good, the relay pins are specified in the sketch. I used the Clean_Eeprom_Config before uploading, I even used other Arduino Uno, no diffrerence, still cannot control the relay sensor from openHAB.

Anyone has a clue, a hint or something? The serial output from both the sensor and the gateway, together with openHAB configuration are two posts up.

Edit: 3 hours later and managed to make many of the sensors (Door, Distance, Dust, Gas, Humidity, Light, Motion) everyone working in conjunction with MQTT Gateway and openHAB except the Relay one...

Any help is appreciated.

Regards,
Adrian

adrianmihai83

Callback for incomming messages does not occur so I guess that the message does not get to the relay sensor. Is there someone that is using this with MQTT Gateway and openHAB?

Francois

@adrianmihai83 I was testing this today and it was working with the MQTTGateway. Here is my config file same as above:

Switch node2_sw2 "Study Lights" (node2,all) { mqtt=">[mysensor:MyMQTT/2/1/V_LIGHT:command:ON:1],>[mysensor:MyMQTT/2/1/V_LIGHT:command:OFF:0],<[mysensor:MyMQTT/2/1/V_LIGHT:command:MAP(1on0off.map)]" }

Here is the info from the serial port monitor.

upload-805fea56-06b2-4632-a2c0-fb8cd80a8ec5

adrianmihai83

Will test it tomorrow morning and come back with result, what i see is exactly the same configuration, the only difference is that your's is on the 3'rd node and mine on 1'st node. Anyway, will see.

Thank you for your answer.

I am still waiting for my other NRF24L01 ( I ordered 30 pcs), they will arive this week. Maybe there is a problem running the sketch on node one, id 0. Tomorrow I will go and buy 2 of the NRF24 from a store even if they are 4 times more expensive, this not working is killing me :)

adrianmihai83

Why is the broker offering me the same id for all of the sensors? I start the first one, broker offers me id 0, without disconnecting it I connect the second sensor and the gateway offers me same id, id=0.

I have cleared eeprom to both of them and see the requesting id first time i power them up, but still same id for both...

Edit 1:

Defined static ID and the relay works, didn't modify anything, just static ID 2 to the relay...

Edit 2:

Just tested with ID 0, 1 and 2 and I can confirm that the relay does NOT work with ID 0, it's almost a week now and I have tried everything and the answer was as simple as this: does not work with ID 0.

Zeph

By ID do you mean node ID? If so, the gateway has node ID 0, so I'm not surprised if it's not good for other nodes.

But you may be talking about a child ID or something else.

adrianmihai83

Yes, I am talking about node ID, but what I can tell you is that until two days ago I didn't assigned node ID manual and I didn't have 3 NRF's to test with gateway + 2 nodes. Only when I got other RF's and made a couple of sensors saw that the gateway is assigning node ID 0 to all of the sensors, and all sensors worked, for example:

temp humidity node had Node ID 0 and Child 0 and 1, and from openHAB I could use them at MYMQTT/0/0/V_HUM and MYMQTT/0/1/V_TEMP
motion sensor at MYMQTT/0/2/V_MOTION
and do on, other 2 sensors, all I had to take care is that all of them had distinct Child ID

Only when I got other NRF's and could make sensors and use them in paralel saw that the gateway is offering NODE ID 0 to all of my sensors, I don't know why, checked MYMQTT.h and it was set to auto assign Node ID, even in the statemant gateway.begin() assumes that the gateway should auto assign Node ID, and gw.begin(incomingMessage, AUTO, true) states it clear that relay sensor should get Node ID from the gateway.

All I did is manual assigned nodes for every one and workking like a charm. I simply like it this way, it let's more control, it's simply more "my way".

Now I want to combine some of the sensors and use a Mega2560 for this, hoping for a nice outcome.

John

This post is deleted!

Damme

@John Could you send me log from MQTTgateway also? (or tcpdump)

John

This post is deleted!

toomij

I have a next problem:
OpenHAB (192.168.1.3) <-> Arduino GW mqtt (192.168.1.234:1883)<-> Arduino TEMP (DHT)

org.eclipse.paho.client.mqttv3.MqttException: ═х єфрхЄё яюфъы■ўшЄ№ё ъ ёхЁтхЁє
at org.eclipse.paho.client.mqttv3.internal.TCPNetworkModule.start(TCPNet
workModule.java:75)
at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(Cli
entComms.java:538)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.eclipse.paho.client.mqttv3.internal.TCPNetworkModule.start(TCPNet
workModule.java:66)
at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(Cli
entComms.java:538)
at java.lang.Thread.run(Unknown Source)

with ping everything is ok.
test

John

This post is deleted!

toomij

I connected the serial to MQTT GW:
If I have connected Wiznet, I've got "0;0;3;0;9;check wires",
if i disconnected Wiznet then got "Started!"

John

@Damme
You can forget about my posts, after some quite intensive debugging i found out there was an ugly inconsistent race condition going on in my app. Issue is gone now.

MQTT Broker gateway

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