MQTT (Message Queuing Telemetry Transport) MQTT stands for Message Queuing Telemetry Transport. It is a lightweight messaging protocol suitable for situations where clients require a small code footprint and need to connect to unreliable networks or networks with limited bandwidth resources. It is primarily used for machine-to-machine (M2M) communication or Internet of Things (IoT) type … Read more
Free for commercial use! A low-code visual development platform for industrial web with over 1500 components. Essential knowledge!!! Understand Modbus time synchronization in 3 minutes. Where does HTTP fall short? Why is IoT relying on MQTT!!! In the Industrial Internet of Things (IIoT), Modbus and MQTT are two common communication protocols, each with its own … Read more
When introducing communication protocols, understanding their communication architecture is crucial for a clear understanding of their working principles and mechanisms. Just as OPC UA follows the Server and Client framework of OPC, what framework does MQTT follow? MQTT Publish / Subscribe Architecture The MQTT protocol operates based on the publish/subscribe model. In traditional network communication, … Read more
The Modicon M262 is the first PLC launched by Schneider Electric aimed at the Industrial Internet of Things (IIoT), capable of connecting directly to cloud platforms via protocols such as MQTT and HTTP, with TLS network security encryption. The left side of the image below shows the traditional method of connecting PLCs to the cloud, … Read more
Introduction A communication debugging tool developed based on WPF, featuring a user-friendly interface and easy operation. It supports both Modbus and MQTT protocols, enabling debugging of various communication methods. Whether in industrial automation, smart home, or IoT fields, this tool can meet your needs. Additionally, the code is open source and modular, making it highly … Read more
In the previous issue, we introduced the publish and subscribe framework of MQTT: MQTT Publish and Subscribe Architecture The two most important roles are MQTT clients and MQTT brokers (intermediaries). Let’s quickly review these two core components: The publish/subscribe model decouples the client responsible for sending messages (the publisher) from the client responsible for receiving … Read more
Hello everyone! Today, let’s talk about how to connect Siemens PLCs in the workshop to the Internet of Things (IoT). The MQTT protocol (think of it as a “WeChat group” in the IoT world) is being used more and more in factories, and it’s essential to know how to work with it! After over a … Read more
IoT Data Platform: Building a Real-Time Monitoring System with MQTT and InfluxDB It was a sultry summer last year when our team took on a large factory’s equipment monitoring project. The outdated system used MySQL to store sensor data collected every 5 minutes, resulting in the database crashing when operations wanted to view real-time trends … Read more
Click the blue text Follow us 1. Core Analysis of MQTT Protocol (1) Essential Characteristics of Lightweight Communication Protocols MQTT (Message Queuing Telemetry Transport) is a “lightweight” communication protocol based on the publish/subscribe model, built on top of the TCP/IP protocol. Its greatest advantage is that it can provide real-time and reliable messaging services for … Read more
Currently updated to the point where we can write a calculator [The interface can be seen at the end]. â‘ This tutorial is suitable for Recommended readers: Beginners in VS + QT. â‘¡ Prerequisite installation VS2019 or 2022 Community Edition (This is too simple, so I won’t write it here!) It is recommended to refer … Read more