END1Course Content The beginner course consists of 15 lectures, currently being updated… Stay tuned for more. 2Target Audience Children aged 5-7 (from kindergarten to first grade) This age group is in a critical transition from concrete to abstract logical thinking. The graphical interface and game-based learning of ScratchJr can effectively stimulate interest; no reading or … Read more
If you don’t want to miss my updates, go to the top right corner – view public account – set as a star AT89C51 (Classic Microcontroller) STM32F103 SWITCH (Single Switch) SW-SPST (Single Pole Single Throw Switch) SW-SPDT (Single Pole Double Throw Switch) SW-ROT-3 (Single Pole Triple Throw Switch) CAP (Non-polarized Capacitor) CAP-ELEC (Polarized Capacitor) CRYSTAL … Read more
The control system of the electron accelerator requires high precision and reliability. Proper application of Siemens PLC can achieve efficient and stable control, enhancing the performance of the accelerator and the quality of experiments. 1. Hardware Configuration Selection of PLC and Expansion Modules The core of the electron accelerator control system uses the S7-1500 series … Read more
Wireless Bluetooth headphones have become very popular in recent years. Many people have purchased a pair. But did you know? They can also pose safety risks! Related Cases On October 9, 2022, in Jiaxing, Zhejiang, a surveillance video captured a thrilling moment: a man was busy when suddenly the Bluetooth headphones he was wearing on … Read more
Author: Xiaoyu, Typesetting: Xiaoyu WeChat Official Account: Chip Home (ID: chiphome-dy) 01 Exposing Wires Inside the Chip Package We received a chip, and the core part of the chip is actually not as large as the chip itself. To facilitate the connection of numerous pins, an additional layer of packaging is added outside. Common types … Read more
In 1978, my family lived in a side room of a mud-brick thatched house, while my grandfather lived in the main house where a small radio, scientifically known as a reed horn, was mounted on the wall. Every morning and evening, it broadcasted announcements from the local brigade, news from the provincial radio station, and … Read more
1. IntroductionThe Wifi Robot: Essentially, it is a remote-controlled car that can be controlled remotely via the internet or a laptop’s wireless connection from up to 500 meters away. Equipped with a network camera, this car can be controlled beyond the line of sight, and it also has a speaker, allowing you to honk at … Read more
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Reply to the public account: Course to obtain resources Introduction to Integrated Circuit Application Development (Including Embedded Systems) for Beginners In the rapidly advancing technological landscape, integrated circuit application development, especially in the embedded field, has become a core support for many cutting-edge technologies. If you are curious about this fascinating field and eager to … Read more
Arduino Design Course (Part Four) The Dream Car Course Introduction No ceremony is needed to set off; the Dream Car has already started, and the future is promising. On April 18, 2025, the spring currents surged through the wires as thirty sixth-grade mechanical engineers from Shanghai Jiao Tong University Affiliated Second Middle School, filled with … Read more
Semiconductor target materials are critical raw materials in semiconductor manufacturing, and their importance is self-evident. Today, we will take a deep dive into the influential international and domestic companies in this field. 1. International Companies 1. JX Nippon Mining & Metals Founded in 1905, JX Nippon Mining & Metals is a giant in the global … Read more