In life, everyone may use or see voice equipment products, which may malfunction, such as failure to make sound, intermittent sound, etc. These problems are mostly caused by problems with the voice ch...
/** File name: RTC generates a 1s signal, counts the 1s signal, and realizes the timing function* Design purpose: Through the .ch file configuration, use the RTC module to generate a 1s signal, thereb...
The same is true for Wi-Fi. Without Wi-Fi, none of us can be swiping away on YouTube videos on our company laptops via a rogue hotspot in a busy but socially distanced coffee shop while we’re supposed...
[color=#333333][font=微软雅黑]I want to design an amplifier with a bandwidth of 15MHz~25MHz, and a gain of 40dB at 20MHz. The input signal is about 1mv. I used the OPA847 common-phase amplifier circuit to...
GD32L233 development environment construction
1 Development Board Introduction
1.1 CPU
Development board main controller: GD32L233CCT6
1.2 Development Board Schematic
Download the official document GD...
1. Change the target name After opening Keil, the target in the Project Workspace on the left can be modified. The method is: right-click Target - Manage Compnents - double-click the item to...[Details]
Problem description: The previously compiled program was normal in actual functional tests. A new program file was compiled without errors, but in actual functional tests, some functions were normal a...[Details]
According to digitimes, industry insiders revealed that TSMC and Samsung have encountered different but critical bottlenecks in the development of their respective 3nm process technologies. It is r...[Details]
In the past year or two, we have heard the term computational photography too many times. When it comes to computational photography, people naturally think of Google's Pxiel series of mobile...[Details]
It is ideal to drive with ULN and transistors, but the efficiency of optocouplers is not high. ULN2003 is usually used for driving. If an NPN transistor is used, one end of the relay is...[Details]
The 2020 Medtec China Exhibition and the 16th International Medical Device Design and Manufacturing Technology Exhibition will be held at the Shanghai World Expo Exhibition and Convention Center from...[Details]
1 Introduction
LED display screen is a new type of information dissemination media that has developed rapidly in the world since the late 1980s. It is a large-scale display system that integra...[Details]
1 Introduction
In recent years, with the development of power electronics technology, microelectronics technology and large-scale integrated circuits, the improvement of production process...[Details]
----- Main program starts----- START: CLR P1.0 ;P1.0 outputs low level, so that LED1 lights up ACALL DELAY ;Call the delay subroutine SETB P1.0 ;P1.0 outputs high level, so that LED1 turns...[Details]
As global new energy vehicle sales climb to more than 14 million in 2023, global electric battery installations have also reached a new high. Data released by SNE Research, a Korean market research...[Details]
1 System working principle
In a DC circuit, active power reflects the product of the voltage and current of the measured circuit (P=UI); in an AC circuit, in addition to this product, it should also...[Details]
1 Introduction Normally, printers, mass storage devices and other devices are driven by ordinary PCs. Since a large number of measurement and control, medical and other systems need to store and pr...[Details]
LG officially released its dual-screen rotating phone LG Wing 5G last night. It is equipped with Qualcomm Snapdragon 765G chip, provides 8+128/256GB storage, is 10.9mm thick, weighs 260g, and is avai...[Details]
As the name implies, non-contact temperature sensors are sensors that can measure temperature without direct contact with the object being measured. This type of sensor is widely used in industry, ...[Details]
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