ESP32 Formats and Communication: Application of Communication Protocols with ESP32 Microcontroller

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

N. CameronESP32 Formats and CommunicationMaker Innovations Serieshttps://doi.org/10.1007/978-1-4842-9376-8_9

9. MQTT

Neil Cameron¹  

(1)

Edinburgh, UK

 

Message Queueing Telemetry Transport (MQTT) is a publish-subscribe network protocol that includes communication between ESP32 microcontrollers on different Wi-Fi networks. MQTT was developed in 1999 by Andy Stanford-Clark and Arlen Nipper for connecting oil pipeline telemetry systems. The MQTT broker enables data transfer between devices on different Wi-Fi networks without breaching firewall safeguards. When a device on one Wi-Fi network requests information from a second device on another network, the information ...