This protocol is known as 'Publish/Subscribe' and is extremely simple and lightweight, being designed specifically for 'constrained devices' and low bandwidth systems. IoT devices rely upon an underlying protocol named 'Message Queuing Telemetry Transport' or 'MQTT' for short. A very basic understanding of what client/server means.One USB Hub, Keyboard, Mouse and LCD monitor to set up the Pi. This Instructable documents how to set up an IoT MQTT Broker and verify it is working correctly by 'snooping' MQTT topics with MQTTSpy. Now we will set up a server which will establish your main household IoT infrastructure and test it works as expected. Okay In 'Part 1 : IoT, Home Automation', you've set up and configured your 'Vanilla' Raspberry Pi (pardon the pun) and can connect to it remotely with PuTTY.
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