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The speaker amplifier introduced in this article can be used to amplify the audio signal output by a pocket radio to drive the speakers to play sound and obtain better sound effects. It can also be u...[Details]
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Comparators are widely used in switching power supplies and digital-to-analog converters. They are also used in zero-crossing detectors, peak detectors, full-wave rectifiers, etc.
A comparator c...[Details]
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In recent years, marine development has increasingly affected people's lives and the development of the country and society. Marine oil and gas development, submarine optical cable engineering, subm...[Details]
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July 25, 2019. Today, an average car has around five square meters of glass, which is almost twice as much as it was 30 years ago. While many components, including interior mirrors with built-in fati...[Details]
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On November 1, the 2019 DiiA Alliance China Summit Forum and DALI-2 Intelligent Control Lighting & Application Design Forum, jointly organized by the DiiA Alliance (Digital Illumination Interface All...[Details]
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This is similar to the DHT11, with slightly higher accuracy and a tenfold difference in price. The program is very improved, and it will automatically recover if there is a problem with the connectio...[Details]
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Mechanical mud density meters need to be tested for discrimination, which is also called sensitivity limit. It mainly checks the integrity of the knife edge and knife bearing of the mechanical mud den...[Details]
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On the evening of August 26, Dongshan Precision released its performance announcement for the first half of 2020. The announcement mentioned that Dongshan Precision achieved stable growth in revenue ...[Details]
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Recently, according to official news from Tesla, the Model 3 Standard Range Upgrade Edition made in China will arrive at Tesla offline stores today, and consumers can make an appointment for a test d...[Details]
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/*********************************************************************** Experiment name: Music synthesis demonstration experiment Device: ATmega16L Crystal: Internal 8M Wiring metho...[Details]
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On September 27,
the final and award ceremony of the 6th Pudong New Area Yangtze River Delta Integrated Circuit Skills Competition was successfully concluded at the Shanghai Integrated Circuit ...[Details]
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Gartner released three major trends that affect China's digital infrastructure market.
According to Gartner's forecast, by 2028, 50% of China's data and analysis (D&A) platforms built before ...[Details]
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Industry Focus 1. Beijing’s 2022 development goals clearly support Xiaomi/Li Auto Recently, the "Two Sessions" were held in Beijing. According to the official policy interpretation, Beijing's dev...[Details]
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When building an ARM project in Keil (I use realview mdk3.11) One of them is to select use MicroLIB Since I am not very familiar with KEIL, I checked it and got the following information: microlib ...[Details]
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In the design of the driver, we may use flush_cache_all to flush the contents of the ARM cache to the RAM, because the cache in ARM Linux is generally set to write back. Usually, DMA cannot access ...[Details]
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