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A previous article introduced the principle of LED luminescence. We only need to set the STC89C52 pin level corresponding to the light-emitting diode to a low level. OK, let's light up D1 D3 D5.
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As shown in Figure A, it is a multivibrator circuit composed of CMOS NAND gates. It consists of two inverters, a resistor and a capacitor. Figure B is its waveform. In the figure, when waveform (1) j...[Details]
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According to Reuters, British Digital Minister Nicky Morgan said today that the UK will decide in the autumn whether to allow Huawei equipment to be u...[Details]
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By: Choon-Hin Chang, Product Marketing Manager, Keysight Technologies
summary
Industry 4.0 is characterized by the integration of digital technology into production and ...[Details]
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Sickle blood cells can clog the spleen's filter, causing a potentially life-threatening condition. Researchers from the Massachusetts Institute of Technology in the United States, Nanyang Technologic...[Details]
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What does brake torque mean?
Braking torque is the torque that hinders the motor from starting. The motor's starting ability can only be significantly enhanced by effectively suppressing the g...[Details]
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This evening, realme officially released its first high-end flagship mobile phone - realme GT2 Pro. In terms of appearance, the realme GT2 Pro uses a new process and four color schemes. The Master ...[Details]
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In the Sino-US trade war, the United States uses chips as a bargaining chip to curb the development of China's high-tech industry and economy. In this context, China urgently needs to promote indepen...[Details]
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USB was jointly launched by Intel and other companies in 1994 and has successfully replaced serial and parallel ports since 1996. It has become a must-have interface for today's computers, mobile pho...[Details]
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In-ear headphones, also known as ear canal headphones or in-ear earplugs, are headphones used inside the human auditory organ. According to their design, they will seal the user's ear canal when in...[Details]
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//Name: Single-chip infrared TV remote control C51 program code()
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In early June this year, when Steve Jobs, who was still on sick leave, announced that Apple would build a new headquarters that looked like a "spaceship", Apple fans around the world were onc...[Details]
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How to track and quickly and effectively compensate reactive power plays an important role in the stable operation of the power system, improving power quality, reducing line losses, and achieving ...[Details]
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1. Basic working principle of DDS The basic principle of DDS is to use the Nyquist sampling theorem to generate waveforms through a table lookup method. There are many types of DDS structures, and ...[Details]
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According to a domestic digital blogger, the Redmi K50 e-sports version has been registered, and the network model number is 21121210C. It focuses on high-performance gaming experience, equipped wi...[Details]
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