[size=12pt] Placed an order on Texas Instruments estore[/size][size=12pt]7[/font][/size][size=12pt], shipped on [/size][size=12pt][font=Calibri]11[/font][/size][size=12pt], arrived in Shenzhen on [/si...
When I touch the electrolytic capacitor with my hand, the voltage regulator makes a sound. Why? The polarity should not be reversed. There will be a sound in both connections....
I used to make SDKs on Wince5.0 and it worked fine. Now I have switched to 6.0. I want to make an SDK in VS2005, but the SDK I made fails when I compile it. The default one is fine. During the process...
[size=4] NB-IoT technology is widely used in agriculture, industry, government and life, so what is the architecture diagram of NB-IoT technology? [/size] [size=4] The typical NB-IoT architecture cons...
Time flies, and it has been 9 years since I first participated in an e-sports competition .First, let me introduce myself. I graduated from Nanjing Vocational and Technical College of Information Tech...
We use STM32F429VET6 to read the conversion data of AD7606. We used software-simulated SPI before, but found that the speed could not reach 200K, and the program was always interrupted, so it took up ...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
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
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]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[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]
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]
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]
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]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]