1. Calibration of “Zero Position”After preheating the sensor for 20 minutes, connect the sensor gas chamber to the air sample bag using a rubber hose → Use the remote control to set the sensor to the “zero display interface” → Open the calibration gas sample bag, adjust the flow meter to the flow and ventilation … Read more
The White House’s Office of the National Cyber Director (ONCD) previously released a report urging the tech community to proactively reduce the attack surface in cyberspace; by switching to memory-safe programming languages like Rust and avoiding vulnerable languages such as C++ and C, the report aims to reduce the number of memory safety vulnerabilities and … Read more
File shared via cloud drive: 16_MQ-2 Smoke Sensor Link: https://pan.baidu.com/s/17Lq4XlOoGgO2k_HxkZPaZA?pwd=ga9r Extraction code: ga9r 1. Who is it? The “electronic nose” that can detect danger The MQ-2 smoke sensor module is simply anelectronic device that can “smell” combustible gases and smoke. Its core is a“sensitive” gas-sensitive element (like a mini “electronic nose membrane”), paired with a … Read more
On March 13, 2025, the Ministry of Housing and Urban-Rural Development released the national standard “Residential Project Specifications” (hereinafter referred to as “Specifications”), aiming for safety, comfort, green living, and intelligence. It stipulates regulations regarding the construction, use, and maintenance of residential projects in terms of scale, layout, function, performance, and key technical measures. Previously, … Read more
01 Core Standards: Technical Requirements and Testing Framework GB/T 9813.1-2016 focuses on “functionality, reliability, and safety,” clearly defining the mandatory and optional testing items for desktop computers, which include: Basic Performance: CPU computing power, memory read/write speed, hard disk storage performance (e.g., SSD random IOPS); Structure and Appearance: Shell materials (e.g., impact resistance of metal/plastic), … Read more
Today, some students are worried that connecting a microcontroller development board to a computer via a USB cable might accidentally burn the computer. After all, a computer is much more expensive than a microcontroller. Today, let’s discuss this issue. 1. Why is it generally safe and unlikely to burn the computer? Currently, the most common … Read more
Introduction: The Industrial Internet of Things (IIoT) is not just a new technology; it is a key force driving transformation in the logistics and construction sectors… Innovative Trends: Smarter Buildings and Logistics With the rapid development of the Industrial Internet of Things (IIoT), buildings are becoming smarter, and logistics systems are undergoing profound transformations. It … Read more
In the field of industrial automation control, PLC systems have become a core technology, and 24V DC voltage is widely adopted, becoming an industry standard. This voltage choice is not accidental but is based on a deep consideration of technology and practical needs. The following will explore why PLC systems typically use 24V DC from … Read more
Click the blue text Follow us The Level C maintenance work for Unit #3 at Jinyang Power Plant began in September 2025. This maintenance focuses on ensuring the safe and stable operation of the unit, with strict attention to operational safety and maintenance quality. Key maintenance projects are being tackled, and all work is progressing … Read more
☆ Design Hardware Components: STC89C52 Microcontroller + GSM/GPS Module + LCD1602 Liquid Crystal Display + ADXL345 Three-Axis Accelerometer + HC-SR04 Ultrasonic Sensor + MY1680 Voice Module + Photoresistor + Multifunctional LED Light + DS1302 Clock Chip + AT24C02 Memory Chip + Button. 1. The STC89C52 microcontroller is used as the control core, with real-time updates … Read more