In previous articles, we introduced MQTT and UART. So what do we get when we combine them? As engineers, we often encounter the following scenario: on-site, we need to connect a computer to a PLC or control device via a serial port, and the PC reads or writes data to the on-site device using a … Read more
4.1 LAN Debugging Hardware Preparation: ESP8266-01S module and ESP debugger Use your phone to create a 2.4G Wi-Fi hotspot (5G is not allowed); Connect your computer to the phone’s Wi-Fi hotspot, and also connect the ESP8266 to the Wi-Fi hotspot; Send the command AT+CIFSR to the ESP8266 to query its IP address, which should return … Read more
1. Core Structure of the TCP/IP Four-Layer Model (The most commonly used layered framework in engineering practice, a simplified version of the network protocol stack) Application Layer → Transport Layer → Network Layer → Network Interface Layer 2. Detailed Layer Explanation (From Top Layer to Bottom Layer) 1. Application Layer Core Function: Directly serves applications … Read more
Report Overview: EtherCAT empowers robot intelligence, constructing the core pillar of the “neural network” and leading the future of the industry. The EtherCAT protocol, with its outstanding real-time performance, low latency, and high synchronization, has become a key technology in the field of industrial robot communication. Its distributed clock mechanism and hardware-level data processing capabilities … Read more
Click the blue text to follow us When working in industrial control, we often encounter various types of buses. Today, we will learn about one of them, Profibus, which is a widely used fieldbus communication protocol in the industrial automation sector, primarily for real-time data exchange between industrial devices (such as PLCs, sensors, and actuators). … Read more
Today, let’s discuss an important communication method in the field of industrial automation – Profibus FMS. Although this technology sounds very professional, it is not difficult to understand; it is like a “WeChat group” in a factory, allowing various devices to freely exchange information. What is Profibus FMS? Profibus FMS (Fieldbus Message Specification) is an … Read more
Click 👆 aboveFollowEngineer Yan Ji and ★ Star Mark ★. Modbus-RTU Protocol The RTU ADU is shown in the figure below. In addition to the core PDU, this ADU contains only two pieces of information. First, the address is used to define the slave device corresponding to the PDU. In most networks, address 0 is … Read more
In 2025, the job market for computer science graduates will welcome new opportunities. These fields not only have broad technical prospects but also strong market demand, providing diverse career choices for developers with different tech stacks. Here are several key directions worth noting: 1. Java: Enterprise Development and Cloud-Native Ecosystem Java, as the mainstream language … Read more
Compiled languages require compilation before execution. This is seen as an advantage by some, as it allows for syntax checks and other information verification during the compilation process, helping to avoid basic errors. Additionally, the compiled code can run faster. However, others view this as a disaster. Often, this is not due to any other … Read more
In Go language development, Makefile is known as the Swiss Army knife of automated builds. It not only simplifies cumbersome compilation commands but also standardizes team collaboration norms. This article unlocks the five core application scenarios of Makefile in Go development through practical code examples. 1. Basic Build Essentials # Define basic project information BINARY_NAME … Read more