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At the beginning of the new year, the Shanghai New International Expo Center was crowded with people, and the 2021 Mobile World Congress (MWC) Shanghai attracted the attention of the global mobile co...[Details]
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1. Experimental Content The enable and decoding input port of the 74LS138 decoder are controlled by the microcontroller P1.2P1.0, and its decoding output port (Y7Y0) is controlled. (74LS138 decod...[Details]
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We know that the degree of error is called precision. The higher the precision, the smaller the measurement error. The lower the precision, the larger the measurement error. Usually, precision is div...[Details]
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LED is often used as a display in single-chip microcomputer application systems. When multiple LED displays are required, in order to simplify the circuit and reduce costs, the selection lines of a...[Details]
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1. Introduction
The Hall Effect is the most common method for measuring magnetic fields, and
Hall Effect
is widely used and widely used in modern times. For example, they ...[Details]
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Mobile network standards have evolved from 2G to 3G, and then to today's mainstream 4G and future 5G. The changes in network quality and speed have been earth-shaking. In the 2G era, China's 3G progr...[Details]
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Electromagnetic interference (EMI) is an aspect of electronic design that is notoriously troublesome and feared by electronics engineers. In most fields, minimizing EMI is critical to prevent your de...[Details]
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In the global environment of energy conservation, emission reduction and carbon neutrality, the development of new energy vehicles is faster than we imagined. Under the various subsidies and advocacy...[Details]
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Download V2.5 source code from Contiki official website http://www.contiki-os.org/ In the contiki-2.5 source code, the relevant content of stm32 transplantation is scattered in two folders. The fir...[Details]
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Powering 20"30 white light emitting diodes ( LEDs
) from three alkaline batteries
presents an interesting problem with conventional boost converters.
The required boost ratio and ...[Details]
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To date,
LED lamps
have been developed for more than 30 years. Various types of
LEDs
, products using LEDs for secondary development, and products supporting LEDs (such as
white light LED...[Details]
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O Introduction
In modern avionics systems, the integrated cockpit display control system undertakes the centralized display and centralized management of the avionics system, enabling pilo...[Details]
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The proposal and connotation of "Ubiquitous Power Internet of Things"
On January 17, 2019, the Fourth Session of the Third Staff Congress of State Grid Corporation of China and the 2019 Wo...[Details]
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The letters DVI stand for Digital Visual Interface (sometimes called Digital Video Interface), which is a standard developed for transmitting digital video content to display devices.
DV...[Details]
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On October 30, according to CCTV News, on October 29, local time, Hildegard Mueller, president of the German Association of the Automotive Industry, issued a statement strongly opposing the EU's im...[Details]