[i=s]This post was last edited by Digital Leaf on 2022-3-26 15:36[/i]For the compilation environment of OpenHarmony, you can choose a simple way, which is to directly use the system image provided by ...
[i=s] This post was last edited by Tianyahaijiaosr on 2018-8-31 00:46 [/i] After reading some official explanations, it is nothing more than combining the original transmission time of 1 bit with a hi...
[font=Arial, Helvetica, sans-serif]Recently, I have been searching for information on reliability, which has changed some of my original concepts and methods. The most prominent ones are some commonly...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:00[/i] Shenzhen Speed PCB Manufacturing Co., Ltd. specializes in single-sided, double-sided and multi-layer circuit board manufacturing...
[size=4][color=#0000ff]Hello everyone, in order to make our board play a better role (such as communication, discussion, etc.), I hope you can give more valuable suggestions! [/b] We will work hard to...
Actually, I received this printer from Cardin many days ago, but it was sent directly to my home, and it just arrived today. I got home for dinner at 6:10, and started unpacking at 7:00. See the pictu...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
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]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
5. Identifiers and keywords of C language
A complete PIC microcontroller C language program usually consists of six parts: include files (i.e. header files 1, variable definitions, variable de...[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]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
Abstract: In recent years, with the establishment and grid-connected power generation of a large number of solar photovoltaic power stations at home and abroad, photovoltaic grid-connected inverter...[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]
Distributed Wireless Communication System (DWCS) uses distributed antennas, distributed processing control, joint signal processing and other technologies to improve the system's spectrum efficie...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
For battery-powered portable devices, in addition to breaking through the limitations of processing power, the performance of portable system power supplies also needs to be continuously improved. ...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
Linux and Android
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