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This simple circuit will sound an alarm when the AC power is lost (or the voltage drops below 50V).
The AC power is half-wave rectified by diode D1 and connected in series with resistors R1, R...[Details]
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Development Environment 1. Hardware platform: FS2410 (s3c2410) 2. Host: Ubuntu 12.04 LTS LED Schematic LED GPIO configuration Configure the GPFCON register and set GPF4-7 as output Co...[Details]
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Trends in vehicle architecture changes
Before sharing the central computing software architecture, let us briefly explain the changing trend of automotive architecture. In general, it mainly i...[Details]
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Vivo established a 5G R&D center in Beijing in October 2016. The R&D team is composed of industry experts and senior talents in related fields. Director Qin Fei has more than 15 years of work exp...[Details]
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At the Greater China Partner Summit at the beginning of this month, AMD announced that the Ryzen 9 3950X and the third-generation Ryzen Threadripper processor (24 cores) will arrive in November this ...[Details]
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1 Introduction GPS is the abbreviation of Global Positioning System, which is a global positioning system that uses navigation satellites to measure time and distance. It offers high accuracy, all-w...[Details]
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1. Introduction
In recent years, with the continuous application and promotion of new technologies in smart substations, the problem of preventing misoperation has become increasingly prom...[Details]
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The function waveform generator on the left sends out two sine waves, and then two signal lines are directly connected to the oscilloscope x and y. When the oscilloscope is in xy mode, a heart-shaped...[Details]
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Nikkei News reported that Japanese electronics giant TDK has submitted an application for an export license in response to the US Department of Commerce's semiconductor export restrictions on Huawei....[Details]
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7 precautions for using liquid flow meters
1. For liquid level meters that exceed a certain length (ordinary type > 3 meters, anti-corrosion type > 2 meters).
2. The installation position of...[Details]
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1. Introduction
In the field of measurement and control, it is usually required to transmit multiple detection signals. The transmission of signals is often interfered by the complex environme...[Details]
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11. Stack initialization
1. The concept of stack:
2. Full/Empty Stack:
1.3: Raise/lower stack:
1.4. Understanding of st...[Details]
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Farnell, a global distributor of electronic components and development services, has launched a new brand Multicomp Pro and added a new range of affordable components, tools and test equipment. The M...[Details]
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The following is an example of LPC ARM7 controlling 8-way pipeline through SPI bus, so that everyone can have a clear understanding of SPI bus transmission and sending data. The circuit diagram is ...[Details]
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A variable frequency drive (VFD) is an electronic device used to control the speed of a motor. It achieves speed regulation of the motor by changing the frequency and voltage of the motor power sup...[Details]
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