At this time of year every year , another group of students on campus are about to graduate and have to make choices about their future .
So which majors are easy to find jobs in , and which ones are ...
Here is a schematic diagram for everyone. Can anyone analyze the working process of the transistor (DQ7 PNP) from pin 1 to ground of the uc2842 power chip in this picture?...
Windows XP can shut down (shut down the system) safely by pressing the power button, but Windows 2000 Server only has "power off", "hibernate" and "standby". I want to shut down Windows 2000 Server sa...
[i=s]This post was last edited by wxd123com on 2022-1-28 17:23[/i]GD32L233C-START Development Board Study Notes ( Part 2)
1. Firmware
The file organization structure in the GD32L23x_Firmware_Lbirary f...
I am currently working on a board with an ARM chip and CAN bus communication. When debugging, I always use JTAG or the serial port to load the program .hex file. However, after installing it in the de...
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[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]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[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]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[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]
1 Introduction to LED
With the development of science and technology, people have higher and higher requirements on automobile light sources. LED (Light Emitting Diode) has gradually attracted...[Details]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
Infrared remote control is widely used in home appliances, but the remote controls produced are not compatible with each other. The universal remote controls commonly seen on the market can only co...[Details]
Traditionally, when using PLC to control stepper motors, a dedicated stepper motor control intelligent module is usually added to the PLC, and then connected to the drive power supply to realize th...[Details]
1. Introduction
The advancement of USB technology makes designers prefer USB interfaces in PC peripheral development. However, existing
virtual instrument
development platforms such...[Details]
ARM Technology
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