The project has been completed, and I am not going to use it anymore, so I plan to get rid of it. The board is very new, and I have hardly used it since I bought it. Now I am selling it for 400. If yo...
Can someone please help me? My circuit board is powered by 5V DC and I chose a filter module rated at 100V. Can this achieve the filtering effect? How is the effect?...
Nasdaq listed US company, located in Shanghai Zhangjiang Hi-tech Park, mainly engaged in communication chip design, 2.5G, 2.75G, 3G mobile phone chips occupy a considerable proportion of the market sh...
I just bought a switching power supply with two pairs of independent +12V and -12V outputs, but when it is unloaded, the +12V is generally low.
I want to make a DC to DC solution to stabilize the outp...
I am a bit confused. There is an RF-Configuration-Register in nRF905, which contains a 32-bit RX address. Is this address the address of another nRF905 or the address of my current nRF905? If it is th...
Overview
PS pressure sensor is an electronic pressure sensor made of semiconductor diaphragm structure. It can convert the physical quantity of air pressure into electrical signals and detect ...[Details]
Preface
Sleep apnea is a very common sleep breathing disease. According to research, about 24% of adult men and 9% of adult women, or more than 2 million people, suffer from this disease ...[Details]
The 21st century is the century of life and health. The rapid progress of life sciences continues to promote human understanding of their own health and diseases. How to develop innovative medical ele...[Details]
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
introduction
When we run or ride a bicycle, the vibration of our arms often makes the images displayed on the electronic devices in our hands look blurry. Long-term viewing (such as watchi...[Details]
To help improve DC/DC conversion efficiency at lighter loads and higher frequencies, Schottky diodes can be integrated into MOSFET chips to form a single package to reduce power dissipation in the ...[Details]
introduction
Mobile phones, MP3 players, hard disk players, digital cameras, PDAs and other devices are all controlled by navigation keys. Currently, the more popular navigation key contro...[Details]
Two doctors in Chennai, a major technology city in southern India, have developed a generator installed in the high heels. The generator generates weak electricity through the vibration and pressure o...[Details]
Touch sensors have been in widespread use for many years, but recent advances in mixed-signal programmable devices have made capacitive touch sensors a practical, value-added alternative to mechani...[Details]
Focus shift problem
Visible light and infrared light have different wavelengths, so the imaging focus is not on the same plane, which results in a clear image under visible light condition...[Details]
Although ERP is management software for enterprises, it still has applicable value for the management of hospital finance, human resources, logistics, assets, etc.
At present, the traditional ...[Details]
0 Introduction
Modern industrial production is characterized by comprehensiveness, complexity, large-scale and continuity, and a large number of sensors are used to monitor and control t...[Details]
1 Introduction
Under the current situation of power shortage in my country, it is very important to monitor power to ensure safe use of power. The research and transformation of power grid...[Details]
1 Introduction
The research is about a basic human parameter tester that can measure parameters such as body temperature, pulse and breathing interval. These parameters and records are the...[Details]
Counterfeit and shoddy goods have always been a public nuisance in the world. With the continuous improvement of the level of counterfeiting technology, the scope of counterfeited products is getti...[Details]