This document discusses using MQTT and the Eclipse Paho project to connect IoT devices and web dashboards. It introduces MQTT as a lightweight protocol for machine-to-machine communication and outlines its advantages over HTTP. The presenters demonstrate building a Java device simulator that publishes sensor data to an MQTT broker using Paho, and a web dashboard that subscribes to sensor topics using Paho.js to display readings in real-time. Attendees learn how to implement device connectivity, publish and subscribe functionality, and build interactive dashboards to control and monitor IoT devices through MQTT and Paho.