I bought a pair of Asics N18, commonly known as "shit-stepping shoes". I tried running in them for 10 km. The cushioning is indeed much better, but I always feel a strong pressure on the instep. Are t...
In double-sided PCB boards, when there are crossovers, the front and back wiring can be used to solve the problem. In the design of single-sided circuit boards, when some lines cannot be connected, ju...
The school stipulates that the input and output frequencies should be between 10M and 15M , stable and controllable, and able to achieve a frequency step of 100k. The experimental results are quite go...
[i=s]This post was last edited by qwqwqw2088 on 2021-3-10 08:51[/i]Sometimes there are a lot of repeated packages of resistors, capacitors, LEDs, etc. If we add them one by one, the efficiency will be...
When using TI am335x touch driver, the touch will be invalid and cannot be clicked when the pulse voltage is applied, and it cannot be restored to normal state when the pulse is stopped. The software ...
I also have a SAM D21 Xplained Pro board. Does Atmel Studio support the printf function to print to the virtual serial port, or semihosting? I have used Nuvoton before and they all have this mechanism...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
LED guardrail lights use fluorescent tubes or LEDs as light sources and continuous guardrails as carriers to form an approximately linear guardrail light strip. This article mainly introduces...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Talking
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