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如今这个时代，拿出手机扫一扫，很多事儿就能在指尖完成，但相信很多人在外出就餐时都曾遇到过被告知只能扫码点单的问题，更有甚者还必须关注公众号才能吃饭。 So, do businesses have the right to do this? In fact, Article 9, Paragraph 2 of the Consumer Rights Protection Law has lon...[Details]
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When we design a single-chip microcomputer circuit, the number of IO ports of the single-chip microcomputer is limited, and sometimes it cannot meet our design requirements. For example, our STC89C52...[Details]
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These days, I want to transplant ucos2 to my own 2440 development board, but I have no information, so I look for information everywhere on the Internet. Finally, I debugged it tonight and share my p...[Details]
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Introduction
In industrial production, real-time temperature monitoring is often required. Although short-distance monitoring can be achieved using serial communication standards such as RS232 and R...[Details]
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Linear Company has launched four micro switching regulator ICs-LTC3401/LTC3402/LTC1872/LT1619 (see Table 1) for boost conversion of portable and distributed power systems.
Table 1 4 micro boo...[Details]
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China Energy Storage Network News:
5G communication technology is the technological high point that Trump is trying hard to defend, and it is related to the technological battle that he calls...[Details]
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Reference News reported on April 7 that South Korea was the first in the world to launch commercial 5G services. The United States followed closely behind, with telecom operator Verizon scheduled to ...[Details]
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In the measurement of pipeline electromagnetic flowmeter, it is not affected by the changes of fluid density, viscosity, temperature, pressure and conductivity; there are no obstructive flow parts in ...[Details]
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Computer ATX power supply control circuit and principle
The control circuit of the ATX power supply is shown in Figure 1. The control circuit uses TL494 (some power supplies use KA7500B, whose p...[Details]
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The power consumption of
CMOS
logic systems is primarily a function of the
clock
frequency, the input capacitance of each gate in the system, and
the power supply
voltag...[Details]
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Recently, Xiaomi Technology Co., Ltd. applied for a graphic trademark, and the international classification involved building materials. The Qichacha App showed that the application date was November...[Details]
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DC-DC switching power supplies have been widely used in the fields of electronics, electrical equipment, and household appliances due to their small size, light weight, high efficiency, and stable per...[Details]
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GPIO simulation I2C is a commonly used application in embedded systems. There are different practices in different places. According to my personal understanding, it is best to separate the vario...[Details]
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According to foreign media reports, Samsung SDI, a battery manufacturer under the Samsung Group, is considering using equipment provided by Chinese suppliers to build its lithium iron phosphate (LFP)...[Details]
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NC (Numerical Control) is a technology that controls machine tool processing through computer programs. In CNC processing, NC programs are the key factor in controlling machine tool movement and pr...[Details]
Embedded System
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