Introduction to MQTT

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Contributors: Alex the Giant

Resources and Going Further

Hopefully, this tutorial has given you a starting point to integrate MQTT in your home automation project. Instead of turning a LED on or off, you could take it a step further and connect our IoT Power Relay to the ESP32 to control your AC powered devices.

IoT Power Relay

COM-14236
$37.50

A tool not mentioned in this tutorial is Home Assistant. With Home Assistant you can control a wide array for commercial smart home devices, including MQTT. This means that with Home Assistant you can create your own MQTT devices that can easily control your existing smart home devices, but stay tuned for a tutorial about that in the future. In the mean time, there's a blog post about MQTT and Home Assistant using an ESP8266 and Raspberry Pi which can be found here:


For more information about MQTT, check out some of the links below:

Need some inspiration for your next project? Check out some of these related tutorials:

SparkFun Inventor's Kit for Photon Experiment Guide

Dive into the world of the Internet of Things with the SparkFun Inventor's Kit for Photon.

LTE Cat M1/NB-IoT Shield Hookup Guide

The SparkFun LTE CAT M1/NB-IoT Shield equips your Arduino or Arduino-compatible microcontroller with access to data networks across the globe. This shield adds wireless, high-bandwidth cellular functionality to your IoT project!

Raspberry Pi 4 Kit Hookup Guide

Guide for hooking up your Raspberry Pi 4 Model B basic, desktop, or hardware starter kit together.

MicroMod Update Tool Hookup Guide

Follow this guide to learn how to use the MicroMod Update Tool to interact directly with the UART on the MicroMod Asset Tracker's SARA-R5. Using this board you can talk directly to the module using u-blox's m-center software as well as update the firmware using EasyFlash.

Interested in learning more about WiFi?

Get a background in how WiFi works as well as the hardware available to help you connect your project wirelessly.

Take me there!
Learn About WiFi