Click the image above “Chuangxue Electronics” to follow and easily learn electronic knowledge. Chuangxue Electronics Subscription Account Daily updates on technical articles in the electronics industry and the latest news on microcontrollers, making it easy to learn anytime, anywhere. During mass production of products, many people have the need to program a unique ID number … Read more
Introduction This article summarizes various common encryption algorithms and encoding algorithms used in web scraping, detailing their principles and basic implementation methods in JavaScript and Python. When encountering JS encryption, you can quickly restore the encryption process. Some websites may have additional processing during encryption, but the general methods are similar. Common encryption algorithms: Symmetric … Read more
Recently, a paper titled “Do LoRa Low-Power Wide-Area Networks Scale?” published by Martin Bor and Utz Roedig from Lancaster University, UK, pointed out that the scalability of LoRaWAN is currently not very good based on the deployments and tests conducted. According to the tests in the paper, a single LoRaWAN gateway can stably support 120 … Read more
Background This article is derived from a previous Weibo post I made: However, the purpose of writing this article is not to help everyone prepare for interviews, but to use this question to introduce basic knowledge of computers and the internet, allowing readers to understand how they are interconnected. For ease of understanding, I will … Read more
Question What is Mind+? Mind+ is released by DFRobot’s sub-brand, Mushroom Cloud Maker Education. Users can complete programming by simply dragging graphical programming blocks, and it can automatically convert to high-level programming languages such as Python/C/C++. It is suitable for large classroom teaching, project creation, maker competitions, and can also meet the needs of students … Read more
The cover image is generated by Recraft. Click the original link to try this workflow. Current Observations Recently, while developing the AI workflow product “Vector Context,” I observed an interesting phenomenon. Although I have detailed the methods for using AI and provided hands-on guidance for writing prompts, very few colleagues have truly integrated AI into … Read more
In response to the national strategy for the development of artificial intelligence and to cultivate innovative talents for the new era, Mianyang Foreign Language School has officially integrated AI courses into the regular curriculum for the third grade this semester. At the same time, the school has launched premium courses in AI robotics, laser engraving, … Read more
Click the image above to follow “Chuangxue Electronics” for easy access to electronic knowledge. Chuangxue Electronics Subscription Account Daily updates on technical articles in the electronics industry and the latest news on microcontrollers, making learning easy anytime, anywhere. 1. Warning 280: ‘i’: unreferenced local variable Explanation: The local variable i is not accessed in any … Read more
Recently, the author conducted research and found an article titled “Improvements and Applications of Light-Sensitive Resistor Experiments Based on Arduino” published in the July 2021 issue of the journal Physical Bulletin. This paper comes from Jiangsu Normal University and the Jiangsu Provincial Key Laboratory of Advanced Laser Materials and Devices. Upon studying the paper, it … Read more
PLC is a new generation of general industrial control devices based on microprocessors, integrating computer technology, automatic control technology, and communication technology. It uses user-oriented “natural language” programming for control processes, making it suitable for industrial environments, easy to understand, user-friendly, and highly reliable.PLC is developed based on relay sequential control and is a general … Read more