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通常有reg51.h，reg52.h，math.h, ctype.h, stdio.h, stdlib.h, absacc.h, intrins.h 。
But the commonly used ones are only reg51.h or reg52.h, math.h.
reg51.h and reg52.h define the special function register...[Details]
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Name: Ultrasonic distance measurement
Author: Acebit
Information: STC10F08 microcontroller, crystal oscillator 11.0592MHZ; ultrasonic module HM55B, ranging range 1 meter;
LCD1602, seria...[Details]
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Recently, Hefei Xinyihua Intelligent Machinery Co., Ltd. (hereinafter referred to as Hefei Xinyihua) completed a 600 million yuan equity financing, which will be used to strengthen the research and d...[Details]
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On November 7, at the 5th China International Import Expo, Guangdong Guanghua Technology Co., Ltd. (hereinafter referred to as "Guanghua Technology"), Panasonic 4D Mobility Technology Service (Beij...[Details]
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1.
High
luminous efficiency
After decades of technological improvements, the luminous efficiency of
LED
has been greatly improved. Incandescent lamps and halogen lamps have a luminous e...[Details]
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In recent years, more and more mobile phones have adopted under-screen fingerprint technology, including Huawei's latest Mate30. This is mainly because fingerprint recognition technology is relativel...[Details]
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1 Introduction
In power plants and substations, reliable DC power is generally required to power control, signal, protection, automatic devices, emergency lighting and AC uninterruptib...[Details]
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According to Jiwei.com, Samsung Electronics' semiconductor business has always been the main engine driving the company's high profitability, but it is currently under increasing pressure. According ...[Details]
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According to foreign media CNET, Apple is developing a head-mounted display. Apple has not revealed any exact information about the rumored AR glasses, but through the Focals smart glasses previously...[Details]
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TI's BQ25504 is a new integrated nano-smart energy harvesting power management solution that is ideal for ultra-low power applications with special needs. The product is specifically designed to ef...[Details]
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We are in an era of data explosion, which is not only the explosion of data volume, but also the diversification of data forms. The speed at which diverse data is generated has exceeded our ability t...[Details]
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CES isn't just about the latest consumer electronics; there are also some for engineers. From what I've heard, the CES show floor is like a circus. I've never been to a live event, but this year's ...[Details]
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China Energy Storage Network:
In the context of accelerated implementation of power reform, Xinhuanet interviewed Yang Jian, President of Taihao Technology. He said that Taihao Technology wil...[Details]
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Assumptions: All components are ideal, C1=C4=Clead, C2=C3=Clag; Lf Lr/k2, K is the turns ratio of the primary and secondary windings of the transformer; Cd1=Cd2 is very large and can be regarded as...[Details]
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High-voltage inverters are commonly used in industrial applications for high-power, high-voltage (usually over 1kV) applications. They can provide higher output power and carrying capacity, and are...[Details]
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