Is there anyone using MQTT as gateway for connecting to openHab running on another Rpi. If so please help with any links, post or any information to direct me on the right path.
Now the RPi based on a new install of Raspbian Jessie, OpenHab 1.8.0 and Mosquitto is up and running and the ESP8266 MQTT client does connect without any problems. I have not changed anything in the code but Mosquitto is now based on the RPi repository for Jessie and not the mosquito_wheezy one. That seems to have fixed it so those versions are likely different but I have not put any time into checking this.
Although it should not be too difficult to make the MQTT Gateway with WiFi work on hardware and software level it is a bad idea on system level:
WiFi and MySensensor NRF24L01+ use the same 2.4 GHz band and with the antennas close a transmit from one will block the other and vice-versa.
You may look at the node js controller. It has database support. https://github.com/mysensors/Arduino/tree/master/NodeJsController Also check out the controller section of the form. http://forum.mysensors.org/category/3/controllers
Just one final question... is the approach to MQTT correct or should I stick with simple Ethernet? I was planning on using OpenHab or Home Assistant.
Thank You all