[i=s]This post was last edited by x1816 on 2022-1-8 17:08[/i]Previous story: See the unboxing and analysis post https://bbs.eeworld.com.cn/thread-1191435-1-1.htmlTest environment introductionThe test ...
MODBUS communication protocol is widely used because it is open, has no copyright requirements, is easy to deploy and maintain. Focusing on the evaluation of NUCLEO-H743, the modbus communication prot...
[b][font=宋体][size=5][color=#0000ff]1. Bypass Capacitor[/color][/size] [/font][/b][align=left][color=rgb(34, 34, 34)][font=宋体][size=4]In a circuit, if you want to remove signals above a certain frequen...
Example of using proteus to simulate Nucleo-F401RE and run MicroPython [img]https://12.eewimg.cn/bbs/data/attachment/forum/201905/21/151155i7i0s8f7hssq9bf0.gif[/img][b][color=#5E7384]This content is...
[size=24px][b][size=16px]When the screen saver time exceeds 3 to 4 minutes, it takes a long time to restore the screen saver. Do I have to wait for a long time before I can enter the password to log i...
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]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[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]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
With concerns about the growing energy crisis, motor efficiency has become an important and timely topic. This is because motors use 63% to 70% of the electricity produced in the United States and ...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
The installation locations of DC-DC converters are relatively scattered. DC-DC converters can be found on the power board, main board, logic control board and other circuit boards of PDP color TVs....[Details]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
RF/Wirelessly
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