Hu Ge's new work http://www.6rooms.com/nlsdwatch.php?v=2755 is really funny. Hu Ge almost went bankrupt to make this film. Someone on the Internet awarded him the Golden Bun Award, with pictures and t...
I installed a 5.5 version yesterday, but it doesn't work. The emulator doesn't respond when connected to the PC! The port in the computer device manager shows MSP-FET430UIF-CDC (COM4). I thought the d...
The platform I use is 2410, the system is CE5.0, and I encountered the following problems when doing power management 1. It can sleep. After CPUPOWEROFF in fw.s, the system can be determined to be in ...
This application note first introduces a method to dynamically modify the clock output frequency, phase shift, and duty cycle of the Spartan-6 FPGA phase-locked loop (PLL) through the dynamic reconfig...
[i=s]This post was last edited by shenshen927 on 2017-8-25 09:15[/i] The official firmware library for STM32 uses the F405 development board. Can this version of the firmware library be used for F407 ...
I am writing a SIP program. I encountered such a difficulty. First, when generating the SIP soft panel, I created a window and got the handle hwndsip. I can output text directly on this panel by using...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[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]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[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]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
1 Overview
In the field of traditional lighting, the concepts and definitions of lamps and lamps are clear. Lamps and lamps have their own applicable product standards, supporting technical st...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]