AsyncMQTT_ESP32

Basic Comparison of XMPP, MQTT, HTTP, and CoAP Protocols

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Basic Comparison of XMPP, MQTT, HTTP, and CoAP Protocols

1. First, let’s take a look at the comparison of the four major protocols based on relevant foreign professional data: Protocol CoAP XMPP RESTful HTTP MQTT Transport UDP TCP TCP TCP Messaging Request/Response Publish/Subscribe Request/Response Request/Response Publish/Subscribe Request/Response 2G, 3G, 4G Suitability (1000s nodes) Excellent Excellent Excellent Excellent LLN Suitability (1000s nodes) Excellent Fair Fair … Read more

A Simple Explanation of Using CoAP Protocol in Advanced Metering Infrastructure

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A Simple Explanation of Using CoAP Protocol in Advanced Metering Infrastructure

CoAP protocol This article is sourced from: https://academy.nordicsemi.com/courses/cellular-iot-fundamentals/lessons/lesson-5-cellular-fundamentals/topic/lesson-5-coap-protocol/ CoAP /käˈæp/ stands for “Constrained Application Protocol,” an application layer protocol based on UDP transmission developed for the Internet of Things (IoT) and IoT devices, defined by the Internet Engineering Task Force (IETF) in RFC 7252.The reason IoT and IoT devices are referred to as constrained networks … Read more

CoAP Protocol Explained in IoT Technology System

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CoAP Protocol Explained in IoT Technology System

Introduction The Internet of Things (IoT) refers to the “internet of everything connected,” which is an extension and expansion of the internet, forming a huge network by combining various information sensing devices with the network, enabling connectivity among people, machines, and objects anytime and anywhere. However, many IoT terminals are resource-constrained, with limited storage space … Read more

MQTT and CoAP Date in EMQ X World

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MQTT and CoAP Date in EMQ X World

With the advancement of 5G network technology, the Internet of Things (IoT) is rapidly developing. Today, countless IoT devices are shining in every corner of the world. However, unlike traditional internet, end-to-end communication has always been a challenge for IoT businesses. The different IoT communication protocols used create a huge gap in communication between these … Read more

IoT Communication Protocols: From MQTT to CoAP

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IoT Communication Protocols: From MQTT to CoAP

IoT Communication Protocols: From MQTT to CoAP The Internet of Things (IoT) is a network composed of numerous devices that connect to each other via the internet, enabling seamless and automated communication. In the IoT ecosystem, various communication protocols play a crucial role in achieving efficient, reliable, and secure data exchange. Today, I will take … Read more

Why IoT Developers Are Confused About MQTT and CoAP?

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Why IoT Developers Are Confused About MQTT and CoAP?

Recently at Exadel, we encountered an interesting challenge for IoT developers. As IoT applications gain so much momentum, there are more and more options on how to develop them. For device communication, two specialized competing protocols stand out: Message Queue Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP). Both are designed to be lightweight and … Read more

Real-Time Chart Display on Weilin Touch Screen Using MQTT

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Real-Time Chart Display on Weilin Touch Screen Using MQTT

MQTT and Remote Chart Updates Method Description Utilize the JS component of the Weilin touch screen with MQTT functionality to achieve remote updates of screen charts. JS Component The JS component refers to the JavaScript (JS) components used in the Weilin touch screen system. These components are designed to facilitate the display of dynamic content … Read more

Why Convert Modbus to MQTT?

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Why Convert Modbus to MQTT?

What is Modbus Modbus is a serial communication protocol originally developed by Modicon (now Schneider Electric) in 1979 for communication between programmable logic controllers (PLCs). The Modbus protocol is designed to be simple, easy to deploy and maintain, and due to its openness and lack of copyright requirements, it is widely used in the industrial … Read more

Implementing Data Transmission with MQTT in Projects

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Implementing Data Transmission with MQTT in Projects

From open-source data to open-source event streams, learn about the MQTT publish/subscribe (pubsub) wire protocol. — Sean Dague Useful original link Please visit the “original link” at the end for clickable in-text links, full-size original images, and related articles. Thanks Compiled from | https://opensource.com/article/18/6/mqtt | Author | Sean Dague | Translator | Andy Song (pinewall) … Read more

Creating an MQTT IoT Project – Bilibili Weather Clock

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Creating an MQTT IoT Project - Bilibili Weather Clock

After studying the “Basic Knowledge” section of “Zero Basics Introduction to IoT” and the “MQTT Protocol” section, we are now going to apply the IoT knowledge we have learned to practical operations. This IoT weather clock project, as the first project in the “MQTT Application” section, uses the ESP8266 development board along with a TFT … Read more