Electric toothbrush that does not require charging : https://training.eeworld.com.cn/course/4294The toothbrush is called Be. As an electric toothbrush, its biggest feature is that it does not need to ...
At first I thought it was the log function, which was not included in the math.h header file, but I decisively changed it to a function that calculates square roots, and the program still overflowed (...
[i=s]This post was last edited by yang_alex on 2015-3-1 06:19[/i] When studying the peripherals of ATSAMR21E, I found that the internal temperature detection is not available. I don't know if it is a ...
[color=#000000]I'm asking this for a netizen. I'm also learning from it! Hope you guys can take a look: As shown in the picture, it's equivalent to short-circuiting the output of the power supply. Wha...
I recently designed a circuit. In the past, I used diodes to prevent reverse connection because I didn't pay attention to power consumption. I found a reference design on the Internet, but I don't kno...
From being a global leader to losing the market, Korean battery manufacturers have always wanted to regain the lost market and dignity, but facing Chinese battery manufacturers represented by CAT...[Details]
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
In recent years, the government has increasingly supported electric vehicles, and the number of electric vehicles has increased. Observant drivers will notice that there are many more green license...[Details]
On August 22, the National Energy Administration released the latest data, showing that by the end of July 2025, China's total number of electric vehicle charging infrastructure will reach 16.696 m...[Details]
introduction
Sonar imaging is of great significance in marine resource development and defense. Its long range, intuitive display of the observed area, and target identification make it widely...[Details]
Teletrac Navman has launched the Multi IQ dashcam, a cloud-based solution designed for large commercial vehicle operators. It connects up to five cameras to cover the vehicle's interior, sides, and...[Details]
There are more and more electric vehicles. Recently, I have heard some news about electric vehicles performing poorly in winter. I would like to briefly introduce whether heat pump technology is mo...[Details]
As the power density of modern electronic systems continues to increase, effective thermal management has become critical to ensuring system performance, reliability, and longevity—especially in hi...[Details]
This series of articles aims to help readers have a brief understanding of the Hongke KPA Automation system and to quickly get started with MoDK, including: an introduction to Hongke KPA Automation...[Details]
A Beijing chemical project utilizes a distributed control system (DCS). The master control system primarily uses the Modbus protocol, while the remote field devices utilize the PROFIBUS-DP protocol...[Details]
Since entering the electronic components industry, I've learned that electronic components come in different packaging types. Some people have argued that different types of components may look the...[Details]
According to the latest financial report data, thanks to its leading position in advanced technology, TSMC's profit performance in the second quarter of 2025 was extremely impressive, with net prof...[Details]
Compared to gasoline-powered vehicles, electric vehicles have a simpler structure, allowing for greater flexibility in the layout of various components. While electric and gasoline-powered vehicles...[Details]
Which one has lower driving cost, electric vehicles or fuel vehicles? This is a topic of great concern to car users. Structurally, electric vehicles do not have mechanical transmission systems such...[Details]
introduction
Commercial air conditioner PCBs involve both high-voltage and low-voltage power. The power supply for commercial air conditioners often passes through the controller. This forces ...[Details]
DIY/Open Source Hardware
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