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There are many hot search keywords in 2019, and 5G is one of them. Although it is still uncertain when 5G will be officially commercialized, domestic mobile phone manufacturers have successively rele...[Details]
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introduction
The widespread use of power electronic devices has caused serious pollution to the public power grid, and the problems of harmonics and reactive power have received increasing...[Details]
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日前,华为轮值董事长胡厚崑在2020年报发布会上重申,华为不造整车,而是聚焦ICT技术,帮助车企造好车。 胡厚崑表示,汽车现在是非常热门的跨界话题,好像做ICT的公司不谈汽车就落伍了。这反映了汽车行业正处在转型的关键点上,未来会向智能化、科技化发展。 胡厚崑指出,华为在汽车行业数字化进程中有很大的发展空间,几年前华为就已经开始在智能汽车领域投入,也已经逐步公布了公司在该领域的战略。 ...[Details]
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Function: Send out the content received through the serial port. What you see on the PC is that what you input in the serial communication software will be displayed in real time. Main file: serial...[Details]
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I helped my classmates design the circuit diagram and PCB board. The requirements included a camera ov7670 for video collection, a v1s003 for sound collection and playback, and a color screen interfac...[Details]
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#include
#define uchar unsigned char
#define uint unsigned int
uchar Table ={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
uchar Send_Da ta...[Details]
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#include avr/io.h #define uchar unsigned char #define uint unsigned int #define lat_on PORTB|=0x10 #define lat_off PORTB&=0xe0 void spi_init(void) { SPCR=0x70; SPSR=0X01; } void spi_send(uchar dd) { ...[Details]
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At present, lithium iron phosphate batteries, which are "very popular" in China, are also "increasingly popular" in foreign industries, and they seem to be becoming the "new favorite" of batteries. ...[Details]
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1. Overview of Sweeper In electronic measurement, we often encounter the problem of measuring the impedance characteristics and transmission characteristics of the network, among which the transm...[Details]
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(I) Reasons for inaccurate grounding resistance detection or unstable or even negative indication. Because the grounding resistance tester is composed of many precise electronic components and has a r...[Details]
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On September 1, at Zaozhuang Vocational College of Science and Technology, Han Yuyong, a teacher who had just returned from the college with great success, and Zhao Qiangqiang, a student, demonstra...[Details]
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Noise is a common problem that occurs everywhere. Almost everyone who works with circuits has to deal with it at some point, either by finding its source and fixing it, or by reducing its effect on m...[Details]
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The MAX9259
's internal line-fault monitoring circuit is used to monitor the serial link for faults, such as a short circuit to the power line (battery), a short circuit to ground, or a...[Details]
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The key task of the UPS is to ensure that the power
supplied to the IT equipment
meets the specific power requirements of the equipment
under
a variety of input AC conditions (including...[Details]
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Chapter 5 Experimental Data of Instrument Testing
5.1 Speedometer Detection
The necessity of automobile speed detection:
The speedometer is an important instrument that provides information about...[Details]