I connected an AT89S52 download circuit on a breadboard, but the chip cannot be detected every time. Can an expert help me find out why? Thank you in advance....
Original title: Don’t let your youth be tainted with old age (Youth View) It seems that overnight, the post-80s generation has collectively become "old". First, nostalgia. They sing "Old Boy", lamenti...
The photoelectric-contact liquid level sensor is a sensor that outputs analog signals. Its application circuit is shown in Figure 1.Figure 1 Application circuit
During the detection process, the outpu...
[p=20, null, left][color=rgb(73, 73, 73)][font=Verdana, sans-serif][size=3][backcolor=white]Texas Instruments (TI) has announced the latest C2000 Delfino 32-bit F2837xD microcontrollers (MCUs) in the ...
I bought an Ez430 watch a few days ago and wanted to do some simple development, but I have read a lot of information and still have no idea. I am a mechanical person and not familiar with electronics...
Keeping the heart environment compact and warm is beneficial in most cases, but it’s another story for electronic heart scanners. When GE Healthcare was designing a scanner that was said to be the fas...[Details]
In the test of the electronic ignition module, in order to simulate the real working condition of the electronic ignition system, the electronic ignition module is often placed in an environment hi...[Details]
Infrared remote control is widely used in household appliances, security, industrial control and people's daily life, especially household appliances and security.
When there are many TVs, VCD...[Details]
As the price of readers and tags decreases and the global market expands, the application of radio frequency identification (RFID) is increasing day by day. Tags can be powered by readers (passive ...[Details]
With the development of supermarket industry and the strengthening of loss prevention awareness, the use of electronic anti-theft equipment (EAS) has become very popular in various parts of the countr...[Details]
From the moment AVS video was born, scientists and engineers have been working tirelessly to reduce the size of audio and video bitstreams. Various advanced video compression algorithms have emerge...[Details]
With the rapid development of network technology and information communication, network economy and knowledge economy are no longer the exclusive domains of IT and other high-tech industries. The i...[Details]
1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
1 Basic structure and function of implantable cardioverter defibrillator (ICD)
ICD consists of two parts: the pulse generator and the electrode lead. The main components of the pulse generator...[Details]
Introduction
High voltage power supply is an indispensable part of nuclear radiation detection instrument, which supplies high voltage to nuclear radiation detection devices (such as prop...[Details]
0 Introduction
Implantable medical devices can be divided into two types: passive and active. Most passive implantable medical devices are non-electronic products, such as contact lenses, hear...[Details]
Abstract: CC2420 is a 2.4GHz RF chip introduced by Chipcon that complies with the IEEE 802.15.4 specification. It is used to develop ZigBee devices and products for PAN networks such as industrial ...[Details]
LED dot matrix blocks have the advantages of high brightness, uniform light emission, good reliability, and easy assembly, and can form display screens of various sizes. At present, LED display scr...[Details]
Pulse compression technology refers to the process of modulating the wide pulse signal emitted by the radar (such as linear frequency modulation, nonlinear frequency modulation, phase coding), and ...[Details]
Introduction
DFT (Discrete Fourier Transformation) is an important transformation tool for digital signal analysis and processing such as graphics, speech and images.
The amount of calcula...[Details]
MCU
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