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
Modbus Debugging is Like Dating! These 3 Command Tips Work Every Time! Have you ever been tormented by Modbus communication debugging to the point of exhaustion? You configure everything according to the manual, yet the communication fails, and you watch time slip away without any progress. To be honest, when I first entered the industry … Read more
1. Compilers and C++ Standards As we all know, the C++ standard is constantly evolving, but regardless of the speed of its formulation, there is always a specific date. Before this date, all related documents may be pending or subject to change. The C++ standard is merely a standard; its true implementation in practice requires … Read more
Previously, I wrote an article about extracting news from the news broadcast to analyze investment opportunities. During the May Day holiday, some students asked if there were other sources of the latest news. In fact, there are many information sources. Here, we take Dongfang Caifu as an example to demonstrate how to obtain the latest … Read more
Introduction In this age of information explosion, data has become one of the most valuable resources. Python web scraping, as an efficient technique for acquiring web data, is becoming increasingly important. Today, I will guide you to learn Python web scraping from scratch, making it easy for even programming novices to get started! 1. Basic … Read more
Basic Data Types in Python 1. Numeric Types (1) Integer (2) Float (3) Boolean (4) Complex 2. Strings 3. Lists 4. Tuples 5. Sets 6. Dictionaries 1. Numeric Types (1) Integer 1. Integer: int In numbers, positive integers, 0, and negative integers are all referred to as integers. Example: intvar = 1000 # Get data … Read more
Combining Python and Excel: A Revolution in Handling Large Data Sets 📊 Are you still struggling with lagging when processing large Excel files? When faced with data exceeding a million rows, traditional Excel operations can often be frustrating. As an efficiency coach with 10 years of data analysis experience, today I want to share a … Read more
Application of Python in Agricultural Technology: Development of Smart Irrigation Systems 1. Introduction: The Integration of Agriculture and Technology Agriculture is the foundation of human civilization, and water resource management is the core challenge of agricultural production. According to data from the Food and Agriculture Organization (FAO), global agricultural water use accounts for 70% of … Read more
Python and Big Data Processing: Practical Applications of Spark and PySpark 1. Introduction: Technical Choices in the Era of Big Data With the exponential growth of data volume, traditional single-machine data processing methods can no longer meet the demand. Big data processing faces challenges in storage, computation, analysis, and visualization. Among various big data frameworks, … Read more