51725-10008411A0LF

　　In the circuit shown in the figure, a 4 X 4 keyboard is connected to the P1 port. Assume: SO-S9 are numeric keys, with key values ​​of 0-9, used to input data to the single-chip computer system; S10...[Details]

 To achieve the best video color adjustment effect, there are two requirements that are very important: 1. Ensure that the image displayed on the screen is beautiful and has the best viewing effect ...[Details]

At the 2023 International Consumer Electronics Show in Las Vegas, the United States, famous auto parts and vehicle companies have launched new technologies that cater to the new era. What automotive ...[Details]

Since its introduction, the oscilloscope has been one of the most important and commonly used electronic test instruments. With the development of electronic technology, the capabilities of oscillosco...[Details]

Today’s “always connected” consumers want to charge their portable electronics anytime, anywhere. For example, we often see travelers charging their phones, laptops, and headphones while waiting to ...[Details]

Smart infrastructure charts the path to IIoT, our reliable “all-Ethernet” industrial application solutions Espelkamp, ​​November 24, 2021 - Digitalization is driving uniformly networ...[Details]

STC microcontroller supports serial port ISP program download, no need to use a dedicated downloader, only use the serial port to download the program. But each time you download the program, you hav...[Details]

There are two ways to trigger the external interrupt 0 (INT0) and external interrupt 1 (INT1) of the STC15 series MCU, the rising edge and falling edge can be triggered and the falling edge only trig...[Details]

Abstract: In the past decade, the computing power of smart cards has developed rapidly, and public key-based smart cards have been widely used in various fields. In 2001, Borst summarized the vari...[Details]

1 Introduction Intelligence has become a new trend in the toy industry. Integrating voice technology into toys can not only give toys the ability to "listen" and "speak" to make them more vivid...[Details]

According to news on August 30, according to a list published by the United States Trademark and Patent Office (USPTO), Apple recently obtained a latest patent for AirPods headphones. The highlight i...[Details]

The bulging and deformation of the battery is mainly caused by the increase of internal pressure. The main reasons are as follows. (1) The opening pressure of the safety valve is too high, or the ...[Details]

#include"reg51.h" #define uchar unsigned char #define uint unsigned int sbit LED=P3^6; //delay for 1ms void delay1ms(uint t) {   uint i;   uchar j;   for(i=0;i t;i++)       for(j=0;j 120;j+...[Details]

System valid data definition The network analysis system data is divided into the following five items: directivity, source matching, load matching, reflection tracking and transmission tracking. The...[Details]

Mitsubishi PLC (Programmable Logic Controller) is a control device widely used in the field of industrial automation. It has the characteristics of flexible programming, powerful functions, high re...[Details]