1. Exam Introduction: The National Electronic Engineer Technical Level Examination is organized and implemented by the Ministry of Information Industry's Electronic Industry Vocational Skills Certific...
I have some basic knowledge of programming now. I have learned C, Java, C# and other programming languages. Now I am learning C++ and want to go the embedded development route. Please give me some lea...
When it comes to "negative frequency", textbooks and teachers say that it only has mathematical meaning but no physical meaning. Just this one sentence kills "negative frequency", which is equivalent ...
One of our recent projects requires the use of a power amplifier TDA7293, powered by ±48V (this condition cannot be changed). The schematic diagram is shown below. The circuit recommended in the data ...
[size=4]Some questions before the development of the OMAPL138 system. Originally, two independent CPUs were used for programming (ARM DSP), so many concepts were relatively clear and easy to understan...
The wince5.0 platform of EP9315 is almost ready. Today, I found a problem about system time during testing. Since 9315 needs external RTC connection to save system time after power failure, a PCF8563 ...
There are many different ways of human-computer interaction. The more common ones are listed below:
Mouse interaction: Using a mouse to operate a computer and interact was the most common human...[Details]
In recent years, with the increasing demand for manufacturing and automated production management, industrial barcode scanners have gradually become an indispensable part of the industrial manufact...[Details]
Recently, South Korean robotics giant WIRobotics launched its first general-purpose humanoid robot, ALLEX, at the Robotics Innovation Center (RIH) at the Korea University of Science and Technology....[Details]
As the scale and business applications of national e-government networks continue to expand, the data and services transmitted over them are becoming increasingly sensitive and critical. To protect...[Details]
Have you ever heard stories about "crazy appliances"? Think of microwaves that turn on automatically or ovens that preheat without any human input? With radios and electromagnetic interfaces ubiqui...[Details]
introduction
According to the China Fire Statistics Yearbook, electrical fires accounted for more than 30% of fire accidents in the past decade, and the trend is increasing year by year. They ...[Details]
Electric vehicles are now widespread, but they've brought with them a host of problems, the most prominent of which is charging. Small electric vehicles (EVs) are a new form of transportation in a ...[Details]
Permanent magnets are essential components in a wide range of household and industrial devices. They are particularly crucial in the renewable energy sector, including electric vehicle motors. Curr...[Details]
Normally, we determine our location and where we want to go by comparing our surroundings with observation and simple GPS tools. However, this kind of reasoning is very difficult for self-driving c...[Details]
In the field of intelligent driving, regulations are becoming increasingly stringent, and the technical threshold continues to rise. Especially after the traffic accident in March 2025, the Ministr...[Details]
In daily life, when we purchase a transformer, we are faced with the installation and wiring procedures. Generally speaking, large transformers such as power transformers are equipped with speciali...[Details]
For today's new energy vehicles, they have different configurations from fuel vehicles, and some configurations have also become a selling point for manufacturers. Compared with traditional vehicle...[Details]
Definitions of VR
, AR, and MR:
What is Virtual Reality?
Virtual Reality (VR), also known as "spiritual realm" or "illusion," is a high-tech technology that has emerged in recent ye...[Details]
Smartphones can be incredibly unintelligent. For example, consider an office full of people, each absorbed in their work. Suddenly, the silence is broken by a burst of loud pop music. A colleague's...[Details]
1. Introduction
In 2015, Apple's new MacBook and Apple Watch both featured force-sensing technology, which Apple calls Force Touch. Each time a user presses the touchpad, the device not only p...[Details]