Hello everyone!

It's fun seeing this thread alive again!

Sorry I havn't been here for a long while, in the picture you'll see what have been keeping me occupied.. (the orange lawn mower, I'm reverse-engineering it!) and I also moved over from Arduino, atmega328p to esp8266 devices and more advanced cpu's (arm, cortex etc) and 'real' build enviroments..

If there is any interest in my project, https://hackaday.io/project/6717-landlord

The picture pretty much explains how my brain works.. I really need to clean up, might add another picture after that. Behind the mower two rigol devices are hiding, a scope and a p-psu.

How to Set-up MQTTGateway with OpenHAB

What is MQTTGateway:
MQTTGateway will act as a broker, a server. And any MQTT clients should be able to connect to it (Please let me know if you experience problems).
MQTTGateway is a very simple implementation. It will not care if the client subscribes to anything or not.
Every node package it receives it will publish to the client. Sketch name and version is also implemented.
Most clients handle this well and just ignores messages it hasn't been subscribed yet.
There are some settings in MQTT that can be good to take a look at.
You will need to configure TCP_IP and TCP_PORT.
MQTTGateway will also give nodes an ID between MQTT_FIRST_SENSORID and MQTT_LAST_SENSORID. The last position is stored in EEprom.

As standard MQTT_SEND_SUBSCRIPTION is enabled. This basically means that the broker will send a empty payload to the node upon a subscribe package. This can be useful. Just keep in mind that you can receive empty payload packages.

The MQTTGateway will also present its SketchName and SketchVersion.

Lets get started!
First follow https://github.com/openhab/openhab/wiki/Quick-Setup-an-openHAB-Server You can setup and try with DEMO configuration first.

Then we need to unpack org.openhab.binding.mqtt into addons folder * NOTE (During development of MQTTGateway I found a bug inside openhab mqtt client which is solved in 1.6.0 nightly build. Use this nightly addon if you experience problems)

• openhab.cfg
  All you need to do here is to add

  mqtt:mysensor.url=tcp://192.168.0.234:1883
  mqtt:mysensor.clientId=MQTT

ClientID does not matter at all (just keep it short). And IP and Port is self explanatory.

Now you can start OpenHAB, it will connect but nothing more will happen.
This is because we hasn't subscribed to anything and OpenHAB will just ignore every incoming package.

So here comes a sample configuration of OpenHAB.

• items/test.items

  Group all
  Group node1 (all)
  Group node2 (all)
  Group sketch (all)

  Number node1_temp "Temp [%.1f °C]" (node1,all) {mqtt="<[mysensor:MyMQTT/20/10/V_TEMP:state:default]"}
  Number node1_humid "Humid [%.1f %%Rh]" (node1,all) {mqtt="<[mysensor:MyMQTT/20/11/V_HUM:state:default]"}

  Switch node2_sw1 "sw2" (node2,all) {mqtt=">[mysensor:MyMQTT/21/1/V_LIGHT:command:ON:1],>[mysensor:MyMQTT/21/1/V_LIGHT:command:OFF:0]"}
  Switch node2_sw2 "sw2 send + recieve example" (node2,all) {mqtt=">[mysensor:MyMQTT/21/2/V_LIGHT:command:ON:1],>[mysensor:MyMQTT/21/2/V_LIGHT:command:OFF:0],<[mysensor:MyMQTT/21/2/V_LIGHT:command:MAP(1on0off.map)]"}

  String sketch20 "Sketch name 20 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/20/255/V_SKETCH_NAME:state:default]"}
  String sketch21 "Sketch name 21 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/21/255/V_SKETCH_NAME:state:default]"}
  String sketch22 "Sketch name 22 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/22/255/V_SKETCH_NAME:state:default]"}
  String sketch23 "Sketch name 23 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/23/255/V_SKETCH_NAME:state:default]"}
  String sketch24 "Sketch name 24 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/24/255/V_SKETCH_NAME:state:default]"}
  String sketch25 "Sketch name 25 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/25/255/V_SKETCH_NAME:state:default]"}
  String sketch26 "Sketch name 26 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/26/255/V_SKETCH_NAME:state:default]"}
  String sketch27 "Sketch name 27 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/27/255/V_SKETCH_NAME:state:default]"}
  String sketch28 "Sketch name 28 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/28/255/V_SKETCH_NAME:state:default]"}
  String sketch29 "Sketch name 29 [%s]" (sketch,all) {mqtt="<[mysensor:MyMQTT/29/255/V_SKETCH_NAME:state:default]"}

We also need to create a sitemap :

• sitemap/test.sitemap

  sitemap demo label="Menu"
  Frame label="test" {
  Group item=node1 label="Temp hum node"
  Group item=node2 label="Switch node"
  Group item=sketch label="Sketch names"
  Group item=all label="Everything"
  }

and a simple transformation file :

• transform/1on0off.map

  1=ON
  0=OFF

If everything worked and I didn't forget anything just fire up :

http://[Openhab]:8080/openhab.app?sitemap=test

After you restart one of your node's the data and sketch name should be visible.
Openhab will forget everything after every restart. Use persistence to fix this (https://github.com/openhab/openhab/wiki/rrd4j-Persistence)

Lol
I just realized why my wlan-antenna didn't work..

@Yveaux pff, it's clean room ESD class!

@hek

I just tried to send myself a picture over the network. real ugly code but it worked.. thought if I put a small cam and someone rings on the doorbell or something.. (Right now I just read the data from SPI flash)

This is what I've been working on, Exact purpose is still unknown, Probobly full of bugs and lacks functionallity.

https://github.com/Damme/SSMSG

start with no parameters and it will be running in background.

• Requires version 1.4b

Maybe I'll leave the topic a bit, because I don't use raspberry myself but a linux server for my 'brain' so I don't have any problem with 'slowness'.
I tried out openhab and actually likes it now, it is a bit ass to start up the configuration but then you learn it you'll easy put in new stuff. I might do a tutorial later on..

But right now I'm looking at the communication between mysensors and openhab and yes I know there is one script written but I was thinking of making a new gateway software for the arduino.
using mqtt protocol that is supported in openhab, and has a arduino library http://knolleary.net/arduino-client-for-mqtt/ ( https://github.com/knolleary/pubsubclient )

an alternative to mqtt is to write something completely new using tcp binding or so, but I think its inventing the wheel all over again.

@Damme said:

// gw.sleep(SLEEP_TIME); //Seems to break recieing message, loosing ~75%

me just dumb here, delay(SLEEP_TIME); works. gw.sleep puts radio in sleep I guess.

Good writing! me myself is writing a MQTT broker instead of serialgateway / ethernet gateway, Right now I'm waiting for new hardware so the development has stopped.

One thing I really want is better ack support. I.E. I send on to a relay, and I request ack. I really think this should be the gateway to really see that the message got away and recieved, it not - retry (or report fail back).

I also think we need to start thinging about MySensors 2.0 and it should not be VERA based protocol.

OT: I recommend hackers keyboard for android devices..

@Yveaux pff, it's clean room ESD class!

@Samuel235 It would be possible, I am planning to implement a GPS, and wireless information would be really nice, 'Hi! I'm stuck at XXXX'

There is a small problem though, not enough IO's, so we probobly need to hack and add one more CPU (atmega? that uses the 8 io to the keypad and send data serially between the cpu's (decoding keypad in atmega, send seriell, and tada 7 free io's! Plenty enough for wireless chips!

regarding GPS I think I can use the built in USB in the battery compartment, no major mod required for it.

Hello everyone!

It's fun seeing this thread alive again!

Sorry I havn't been here for a long while, in the picture you'll see what have been keeping me occupied.. (the orange lawn mower, I'm reverse-engineering it!) and I also moved over from Arduino, atmega328p to esp8266 devices and more advanced cpu's (arm, cortex etc) and 'real' build enviroments..

If there is any interest in my project, https://hackaday.io/project/6717-landlord

The picture pretty much explains how my brain works.. I really need to clean up, might add another picture after that. Behind the mower two rigol devices are hiding, a scope and a p-psu.

I like this one, It's not fanless but hackable and 3 channels; http://www.meilhaus.de/en/rigol+dp832,i2.htm

I have been away for a while but it seams quite some of you are experiencing problems, I'll try to take a look at it. If you find any more details, please let me know!

I just wanted to say hello again to everyone. I had to disappear for a while. Just had too much for my brain to handle. So all my automation project were on halt but will be continued again.

I know there are lot of bugs in this GW and I will hopefullt start developing soon again. Just write your experience you had so far and I'll try to keep up

//Damme

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

@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 "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.

Or GPS for a very accurate time