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This small uninterruptible power supply (UPS) can provide 5V, 9v and 12v DC power supply. The maximum supply current can reach 1A. It can supply power to the load without delay when the main power is...[Details]
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According to the US Business Insider website, Apple has obtained a patent for a system for processing audio signals, which can be used in virtual reality devices. The report said that an application ...[Details]
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This circuit mainly uses transistor temperature measurement and water level switch S to measure water level to control and alarm water temperature and water level. It can complete water level display...[Details]
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There is an essential difference between the ARM series chips and the PC series (maybe my statement is not accurate) chips in instruction design. Each instruction in ARM is a reduced instructi...[Details]
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Introduction: The previous lecture introduced and applied the internal timer and interrupt of the microcontroller, and gave examples. This lecture will introduce the serial port communication on the ...[Details]
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In the data acquisition and real-time control system based on single-chip microcomputer, the command and data transmission between the computer and the single-chip microcomputer is carried out throug...[Details]
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The formaldehyde detector collects air samples from the testing site. The formaldehyde in the air is absorbed by the phenol reagent solution and reacts to form azine. The azine is ...[Details]
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The schematic diagram of the music hypnotist based on CCIC2851 is as follows: transistors VTl~VT3 form a timing circuit; ICl music integrated circuit CIC2851 and transistor VT4 and other components f...[Details]
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1. Declare the structure variable GPIO_InitTypeDef GPIO_InitStructure; -GPIO_InitTypeDef is a structure variable, including GPIO_Pin (u16 type), GPIOSpeed (GPIOSpeed_TypeDef type) and GPIOMode (GP...[Details]
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At noon today, Tianfeng International analyst Ming-Chi Kuo released an industry report saying that the iPhone 13 series wide-angle lens will use 7P lenses. Sunny Optical is expected to pass Apple's 7...[Details]
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Ethernet has become the mainstream communication protocol at the top of the control pyramid in building automation. The Institute of Electrical and Electronics Engineers (IEEE) recently defined a new...[Details]
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In the early 20th century, nighttime driving was extremely dangerous. Drivers were illuminated by kerosene lamps, using hand signals and shouting to tell others what maneuvers to perform, while guess...[Details]
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As power electronic switching technology continues to advance, the need for accurate current measurement for feedback control and system monitoring is increasing. There are many methods for accuratel...[Details]
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Apple has identified an issue with the logic board in a "very small number" of 2018 MacBook Air models, according to an internal document that the company released to Apple Stores and Apple Aut...[Details]
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Preface This is a new picture of development that is a mixture of the old and the new, and a transformation of kinetic energy. In the tall red brick factory building with a sense of age, red hot molte...[Details]
DSP and ARM Processors
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