This draft opinion involves two issues: one is which IoT technology route is more suitable, and the other is whether it is reasonable to intervene in market competition through administrative means. Reporter: Zhou Yuan / Editor: Xie Lirong “Sometimes, what defeats you may not be new technology, but just a document.” Jack Ma, Chairman of … Read more
Click the blue text to follow us Author Chen Sixin / Quanzhou No. 7 Middle School, Fujian Province The photoelectric effect experiment involves the most fundamental concepts of quantum physics and serves as an important bridge between quantum physics and classical physics. The physics curriculum standards require students to understand the experimental laws of the … Read more
Introduction With the rapid development of IoT technology, more and more small and medium-sized enterprises and individual developers wish to participate. However, developing a complete IoT platform often requires a high technical threshold and development costs. This article promotes an open-source, easy-to-use IoT system suitable for various fields such as smart homes, smart offices, agricultural … Read more
Arduino, ESP32, and FastLED represent a classic learning path that progresses from beginner to advanced, culminating in the creation of stunning artistic effects. They are not isolated technologies but rather a complementary and progressively layered ecosystem. Now, please take a seat as we meticulously analyze these three “old friends” from both theoretical and engineering perspectives. … Read more
⚔️ First, let’s see the effect ⚔️ Install the TFT_eSPI Library Step 1: Click on the ant icon on the right Step 2: Click on Open in English Step 3: Click on Libraries in English Click on TFT_eSPI in English to go to the next interface Step 1: Click on Add to Project Step 2: … Read more
The OpenWRT system achieves data transmission between Ethernet (wired) and WiFi (wireless) through a multi-layer network architecture design and inter-process communication (IPC) mechanisms. Its core design includes network interface bridging, inter-process communication framework (ubus), firewall and routing rules, and unified configuration management system. The following are the specific implementation principles and key components: 1. Network … Read more
Recently, while debugging a user-space program, I suddenly wanted to understand the relationship between a certain process and several child processes, similar to the output below: ruok@ruok-vm:~$ ps aux | grep smbdroot 1359 0.0 0.2 356712 20596 ? Ss 16:48 0:00 /usr/sbin/smbd –foreground –no-process-grouproot 1361 0.0 0.0 344968 6036 ? S 16:48 0:00 /usr/sbin/smbd –foreground … Read more
On June 9, Zhongying Electronics announced that its controlling shareholder, Weilang International Group Co., Ltd. (hereinafter referred to as “Weilang International”) and shareholder WinChannel Ltd. (hereinafter referred to as “Win Channel”) have signed a “Share Transfer Agreement” with Shanghai Zhineng Industrial Electronics Co., Ltd. (hereinafter referred to as “Zhineng Industrial”). According to the announcement, Weilang … Read more
👆If you wish to see more often, feel free to star🌟 and bookmark it~ Since the release of the STM32F103 series in 2007, STMicroelectronics’ STM32 series has gone through nearly two decades, and its MCU/MPU series products have long become benchmarks in multiple markets. To date, the STM32 MCU has developed five major categories and … Read more
As a hardware engineer, we often deal with microcontrollers (MCUs). However, when selecting an MCU, in addition to pin functions, we should be more familiar with the three important parameters: Flash, EEPROM, and SRAM. If we do not prepare adequately in advance, we may find ourselves wasting more time and effort later on when we … Read more