[quote="Naveen, post:46, topic:82207"]
Yes of course. I have an mqtt broker running on a Raspberry Pi at 192.168.1.11. It is Mosquitto.
I have to use a username and password to connect to it. My username is jbudd and my password is Password1.
In this simple flow the inject node sets msg.payload "Hello" and msg.topic "test".
The mqtt-out node accepts the topic from msg.topic.
The mqtt-in node subscribes to topic "test".
For more complicated setups I might use a topic like reactor1/coretemperature or reactor1/radiation
So that's my setup. Since I have no idea what your setup is like you might find you need different settings.
But since your mqtt node is Connected, all you need is a sensible topic
