SH-312

1. Introduction In recent years, myopia has seriously affected people's health. In order to accurately understand the degree of myopia of myopic patients and provide more suitable glasses for them,...[Details]

introduction LED display screen has the advantages of low cost, long life, low power consumption and wide operating temperature range, and is widely used in the display of text and image informa...[Details]

3. Power supply and speaker protection circuit    Fig.11     The power supply and protection circuit are shown in Figure 11, and the PCB board is shown in Figure 12. The main power rectifier...[Details]

　    Recently, Xiaomi 11 Pro, Xiaomi 11 Ultra and Xiaomi's new folding screen model passed the 3C certification together last week. Xiaomi has previously announced that Xiaomi 11 Pro and Ultra will b...[Details]

Abstract: This paper introduces the design and implementation of a high-power current-controlled flyback DC/DC converter, and proposes a simpler design method for energy storage transformers. A 1kW...[Details]

　　"Smart home", also known as intelligent residence, uses advanced computer technology, embedded system technology, network communication technology and sensor technology to organically combine vario...[Details]

Earlier this week, Qualcomm launched the Snapdragon 870 chip for flagship devices. This SoC is positioned between the Snapdragon 888 and Snapdragon 865, and the Snapdragon 870 also offers faster perf...[Details]

Higher speed ADCs place tight timing requirements between the converter output and the receiver input; knowing how to use data sheet numbers ensures error-free digital transmission. Hig...[Details]

In March this year, Changdian Technology provided chip packaging and testing services to Beijing Skerry, helping Beijing Skerry launch China's first ETC SoC chip SKY6650 for automotive pre-installati...[Details]

On June 10, Foreign Ministry Spokesperson Geng Shuang hosted a regular press conference. At the press conference, Geng Shuang refuted recent remarks made by US Secretary of State Pompeo that smeared ...[Details]

If this file comes with IAR, no settings are required. If it is not built-in IAR, the easiest way is to put it in the same directory as the .c file, and no settings are required. If they are not in t...[Details]

This program is designed to read the time of DS12C887. The display part only includes the minutes and seconds. It has passed the test and has detailed comments. It is very useful. #include absacc.h...[Details]

RFID and NFC have many similarities. In addition to their application scenarios and frequency bands, they also share many industry standards. Today we will introduce two of the more commonly used sta...[Details]

In various single-chip microcomputer application systems, the normality of the memory is directly related to the normal operation of the system. In order to improve the reliability of the system, i...[Details]

Analysis of LCD working principle: 1. LCD hardware architecture: LCD hardware system: You can see that the LCD controller is in the ARM processor, and the LCD screen and p...[Details]