Home Automation - multi-sensor nodes

[Mihai]

My Home Automation project use My Sensors 1.5 and Home-Assistant, communicating via MQTT.
I plan to install in each room several sensors (Gas/Smoke, PIR, Water leak, Temperature, Humidity) and Relays (2 to 4, local control also using IR remote).
While the project is still beta, I would like to share with you what I have achieved until now, mainly the code for gateway and nodes. The code is here: https://github.com/Mihai258/HomeAssistant-MySensors-MQTT , it contains the standard gateway from MySensor site and modified nodes to use one or several sensors, a lot of combinations are presented. A configuration file for Home-Assistant is also presented, it helps to understand how to manage the messages from MySensors.
The gateway contains Arduino UNO + Ethernet shield + NRF24, the nodes contains Arduino Nano + NRF24 + sensors.
I have tested my nodes and they works fine on the table. I will come back with more information and details, but it will take some time to get all components and to build the whole system. I also plan to move to MySensors 1.6 (my tests are on-going here).

[maxtox]

please check that out:

http://forum.mysensors.org/topic/2754/home-automation-node-all-in-one-possible-even-for-noobs-mqtt-node-red-iobroker

tell me if you want to jump in and we make together a solutuion for comunity!

[Mihai]

I have updated my project to use MySensors 2.0.0 beta from development branch with the following main changes:

• MQTT broker is external, you may use mosquitto for example;
• the Gateway allow sensors; examples included with several sensors on the gateway
• Arduino Mega may be used for the Gateway and/or nodes; in the Gateway sketch I have mention the connections for NRF24
• multi-sensor nodes examples.
  I have tested all of them and they are worked.
  The project is presented here: https://github.com/Mihai258/MySensors2-HomeAssistant-MQTT

@maxtox: my expertise level in IoT is not so high for your project, I am still learning in this area.

[Luke Corkill]

@Mihai - thanks for these; nice clear examples of multiple sensors and handling incoming messages

[Mihai]

My project is in running phase, I posted detailed description of functions, code and pictures on Openhardware site here: https://www.openhardware.io/view/55.

[foad62]

Hi,
I followed your GitHub to set MQTT broker (MySensors 2) but I couldn't succeed. MySensors MQTT Gateway Terminal is saying:
Attempting MQTT connection...

I also couldn't undestand the role of mosquitto here because it is not mentioned at the Home Assistant website too!
Thank you

[Mihai]

@foad62
Sorry for late reply... If you use MQTT Gateway you need an MQTT broker. I was using mosquitto as a broker. At HA site they mention it at MQTT component page: https://home-assistant.io/components/mqtt/ but now they also have one internal broker available, so they are many available possibilities.

[Mr6510]

@mihai
Thanks Mihai, I have been struggling with getting my first basic Home Assistant + MySensors via MQTT working. Your examples got it all going for me. Thanks again for taking the effort to post.