The access controller is the core part of the access control system and the soul of the access control system. The quality and performance of the access controller directly affect the stability of the...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:15[/i] Dear brothers and sisters, the 2009 National Electronic Design Competition is about to start. How are you all preparing? I heard that ...
I have changed the previous address due to updating the website. Download the electronic file of Windows CE Practical Development Technology. Copyright statement, the copyright of this electronic file...
Some time ago, a friend asked me how to build the wince environment. Since there are some things to pay attention to during installation, it is inconvenient to describe it directly in words. Today, I ...
I referred to the article "[url=http://www.hi-pda.com/forum/viewthread.php?tid=423350&extra=page%3D1]I changed the hard drive and flashed uboot (ST chip) for my Linkstation HDHLAN-120G" and found the ...
Under normal circumstances, the serial port information is: INFO: CReg2440Uart::CReg2440Uart using processor frequency reported by the OAL (66666666). INFO: CReg2440Uart::CReg2440Uart using processor ...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[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]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[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]
Currently, each country is developing its own USB interface
charging specifications
, which leads to a major problem that a USB interface
charging
device manufactured in one country...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]