MQTT and IOT devices


I am working on a Master dissertation. I am looking at MQTT and if I can use this to link my home IOT devices with Home Assistant. The Iot devices are a smart tv, cctv camera and a Alexa touch. It seems MQTT only works with IOT sensors, like home motion sensors Or am I understanding MQTT incorrectly.? , Do I need to install something on each of my Iot devices mentioned to allow MQTT Broker in Home assistant work?, doesn’t seem feasible to me


Yes, you will need to have a client publishing and/or subscribing on each of your devices to make use of the MQTT architecture.
There are many different clients for many different programming languages for mqtt out there.

Here is an example for the Paho client.

And here is a blog post which might help you understand a little more around your use case.