[b]Experience Exchange of the National Undergraduate Electronic Design Competition---- [Power Supply Category][/b][font=Arial, sans-serif][color=#7b7d72](1) In July, a national expert group working me...
There are several reasons for making this MP3: first, I like music, second, there are many ready-made MP3 songs, and third, I want to hear the sound of my own MP3 in my own room. When I started this M...
We are looking for part-time VMware lecturers. We require certain project experience, strong communication skills, high salary, daily payment. If you are interested, please contact me. Location: Beiji...
Hello everyone~ I recently used a HC-SR04 ultrasonic distance measurement module. I believe many friends have played with it. Now I want to know how the STC program in HC-SR04 is implemented? The foll...
[i=s]This post was last edited by Pilihuo on 2014-8-5 22:25[/i] The circuit multiplies the non-DC input voltage and the desired negative gain. The circuit adds the input voltage to the non-inverting i...
I want to change the interrupt trigger condition in the timer interrupt handler, but it doesn't work. Is there any way to solve this problem? [code]void timer0Isr(void) { flagALL = TMR32B0MCR; if(flag...
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
Introduction
Power subsystems are becoming more and more integrated into the overall system. Power systems have moved from being separate "essential dangerous devices" to being monitorable...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[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]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
1. Disadvantages of choosing too high a voltage level
Choosing too high a voltage level will result in too high an investment and a long payback period. As the voltage level increases, the...[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]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[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]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[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]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
Electronics Design Contest
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