Hacker: I have controlled your computer. Xiaobai: How? Hacker: With a Trojan horse . Xiaobai: ... Where is it? I can't see it. Hacker: Open your task manager. Xiaobai: ... Where is the task manager? H...
Dear colleagues:The original Electronic Experts Warm Nest QQ group was maliciously cancelled. Please join the new group: Electronic Engineering World Exchange Group 26394388...
In ucos, OSTime is a u32 data, which has been increasing since the boot, once for each street shot. Assuming the system frequency is 200, it will overflow after running for 120 days. Why is this allow...
For example, in a large wireless LAN, 1. How is the real-time communication performance of two PocketPCs via Wifi? 2. How is the real-time communication performance of two PocketPCs via Wifi in two mo...
Image Processing and Analysis, Yonghong Jia, Wuhan University : https://training.eeworld.com.cn/course/5404Image Processing and Analysis aims to enrich students' knowledge of image processing and anal...
Seeing everyone’s enthusiasm for learning C recently, I’d like to share it with you: This is the best advanced tutorial on how to write error-free and robust C language programs written by a Microsoft...
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[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]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
With the continuous advancement of various technologies in the field of measurement and control, the baseband subsystem of general measurement and control equipment has entered the fourth generation o...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]