Introduction: MQTT is an instant messaging protocol developed by IBM. MQTT is a connection protocol aimed at M2M and the Internet of Things, utilizing a lightweight publish and subscribe message transmission mechanism. You can directly download the source code of the MQQT service from GitHub, source code address: https://github.com/mqtt/mqtt.github.io/wiki/libraries Main Content: Official Document Translation: The … Read more
The previous two articles discussed the basic decomposition process of the MQTT protocol. This chapter mainly discusses the implementation of specific messages. Since the message handling specifications are quite similar, we will introduce the Connect and Publish messages, which are relatively complex in the MQTT protocol. Understanding the protocol analysis of these two messages will … Read more
In industrial production, precise temperature control often directly relates to product quality and production efficiency. As an engineer with 15 years of experience in industrial automation control, I understand the importance of temperature control systems. Today, I will share how to build a high-precision real-time temperature control feedback system. System Components and Features Before implementing … Read more
In the field of industrial automation, heterogeneous network communication has always been an important yet challenging topic. As an engineer with years of experience in industrial communication, I will explain in detail how to use industrial PCs to build an efficient edge communication system. 1. Overview of Heterogeneous Network Communication Library In industrial sites, we … Read more
Follow “Script Home” and join millions of developers Author | kiba518 Produced by | Script Home (ID: jb51net) Introduction This article mainly explains the commonly used encryption algorithms in C#. MD5 Encryption MD5 encryption is the most common encryption method. Since MD5 is irreversible, many systems store passwords using MD5 encryption. Although MD5 cannot be … Read more
This article compares the performance of four commonly used encryption algorithms: DES, 3DES, Blowfish, and AES (Rijndael). By running several encryption settings to process data blocks of different sizes, the encryption/decryption speed of the algorithms is evaluated and compared. The simulation is performed using C#. Keywords: encryption algorithms, performance, analysis, AES, DES, Blowfish, TripleDES, cryptography … Read more
To pass the time, I will provide a detailed explanation of the previously written MQTT protocol code implementation; mainly focusing on the analysis and implementation of the MQTT network communication protocol, which specifically involves the splitting and processing of network data streams. Therefore, much of the content involves specific code functionalities. If you are interested … Read more
Click Blue Text To FollowServo and Motion Control Today, Zheng Motion Technology shares with you the “Hardware Wiring of EtherCAT Motion Control Card and C# Hardware Peripheral Read/Write and Homing Motion“. Before we start learning, let’s first understand the motion control cards ECI2618 and ECI2828 from Zheng Motion Technology. These two products are 6-axis and … Read more
Click on the above“Zhèng Yùn Dòng Xiǎo Zhù Shǒu”, to stay updated with new developments! XPCIE1032H Function Introduction XPCIE1032H is a PCI Express-based EtherCAT bus motion control card that supports 6-64 axes of motion control, multiple high-speed digital inputs and outputs, allowing for easy multi-axis synchronous control and high-speed data transmission. XPCIE1032H integrates powerful motion … Read more
1. Introduction The concept of an Event Bus may be unfamiliar to you, but you might be familiar with the Observer (Publish-Subscribe) pattern. The Event Bus is an implementation of the publish-subscribe pattern. It is a centralized event handling mechanism that allows different components to communicate with each other without needing to depend on one … Read more