What I want to achieve: When the P1.0 button is pressed, the timer starts, and the digital tube of the P2 port flashes once every second. When the P1.1 button is pressed, the timer stops working. The ...
[i=s]This post was last edited by w494143467 on 2021-5-13 16:17[/i]Let me talk about the situation first. My current company is 966, and I basically don't work overtime. Sometimes I have to work overt...
Hello everyone, can anyone send me a copy of the protel99se installation package? I want to learn some videos about protel, but the installation package I got cannot be downloaded. Thank you in advanc...
I can't find the chip components of the TMS320C54X series when drawing the DSP hardware circuit using protel. I still can't find it after changing to DXP software. What should I do? Should I draw it m...
[b][size=16pt][url=http://www.bcae.com.cn/product/bcae_16.html][color=black][font=宋体]Classification of tachometers[/font][/color][/url][/size][/b][b][font=宋体][size=16pt]and[/size][/font][/b][b][size=1...
1. Star connection 2. Bus connection 3. Power line carrier connection 4. Infrared connection (IR) 5. Wireless (RF) connection 1. From the perspective of stability, star connection is the most stable a...
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[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]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[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]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[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]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
It should be understood as follows: DC-DC means direct current to direct current (conversion of different DC power values). Anything that meets this definition can be called a DC-DC converter, incl...[Details]