This video takes a deeper look at MQTT to see what the central server, called the "broker", is capable of. The communication model of MQTT offers a lot of benefits over the traditional poll and response model. In this tutorial we'll take a look at an MQTT broker what advantages it can provide for IoT and IIoT applications. In this video you will learn: - How the MQTT model works - What an MQTT broker is and where it can run - Useful features and functionality that the broker provides - Retain Messages - Birth, Death, and Last Will and Testament Messages Learn more at #mqtt-1 All Opto 22 products are designed, manufactured, and supported in the . from our Temecula, California headquarters and factory.