Hello everyone, I would like to ask a question. I am designing a product with the theme of portable venues to provide outdoor sports conditions for the public. I hope to use sensor technology to desig...
Generally, EMI/EMC design needs to consider both radiation and conduction. The former belongs to the higher frequency part (>30MHz) and the latter is the lower frequency part (A good EMI/EMC design mu...
{:1_119:} means that he can only do automatic wiring. Please provide the steps for manual wiring. Please pay attention to the detailed steps. . . . . . Thanks to the big guys....
I have a DE2 development board with 2C35 chip. I happened to have a DE2-70 borrowed from my senior. Later I started working on embedded systems, so I never used it. I just opened it for testing and ne...
Hello everyone, I want to draw a picture in the dialog box in the EVC++ development environment. Which function should I use? How to draw it? I am a beginner. These days, my teacher forced me to ask f...
I read some examples of experts on the forum, downloaded some 1602 data and ICCAVR code, got a 1602, and tested it on Ssangyong's SL-MEGA8 board, but the 1602 doesn't display anything. I have a few qu...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
In this article, the high-performance DSP developed by TI can be used as an effective confidentiality method if it is applied to PC encryption cards.
As an effective network security solution,...[Details]
Contact resistance
is the resistance to current flow through a closed pair of contacts. This type of measurement is performed on devices such as connectors,
relays
, and switches. The...[Details]
1 Introduction to HART Protocol
HART (Highway Addressable Remote Transducer), an open communication protocol for addressable remote sensor high-speed channels, was launched by Rosemen in the U...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
Our flight had just begun to descend when a gentleman sitting next to me turned to talk to me about engineering—he had seen me reading an engineering journal. The gentleman next to me said that he ...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[Details]
1. The composition and structure of mobile phone lithium battery
Mobile phone lithium batteries are mainly composed of plastic shell upper and lower covers, lithium battery cells, protection c...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
Various electronic and electromagnetic interference inside and outside the car often puts automotive electronic equipment in dangerous working conditions, degrading the performance of electronic eq...[Details]