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China Telecom released its financial report for the first half of 2019, with a net profit of 13.909 billion yuan, a year-on-year increase of 2.5%. China Telecom expects capital expenditures of RMB 78...[Details]
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1 Introduction
At present, most ultrasonic distance measurement systems use single-chip microcomputers as the control core, and use ultrasonic sensors to send ultrasonic signals. After the...[Details]
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In recent years, Mini LED has attracted much attention in the industry as a new technology with broad market prospects. Major manufacturers have shown great enthusiasm for Mini LED and have made arra...[Details]
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Jiazi Guangnian Think Tank has published a smart driving report, which deeply analyzes the current status and future of smart driving. Based on this report, we have extracted important points and s...[Details]
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Most embedded systems use more than one power rail, and many use four or more. Individual ICs, such as FPGAs, DSPs, or microcontrollers, may have specific timing requirements. For example, one chip m...[Details]
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The impedance of the inductor is proportional to the frequency, and the impedance of the capacitor is inversely proportional to the frequency. Therefore, the inductor can block the high frequency and ...[Details]
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Recently, Siasun
Robotics
released its performance forecast, predicting a full-year profit of 40 million to 51 million yuan in 2022, a year-on-year increase of 107.11% to 109.07%, turning l...[Details]
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The global energy shortage problem has caused governments around the world to vigorously promote new energy-saving policies. The energy consumption standards for electronic products are becoming ...[Details]
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As Powerbeats Pro is launched in various countries and regions, more information about the headphones has begun to be disclosed. Recently, Apple has provided Powerbeats Pro test samples to some media...[Details]
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Note: Modify F4 to stm32f4xx.h/system_stm32f4xx.c, modify F3 to stm32f10x.h/system_stm32f10x.c One of the modifications: HSE_VALUE in stm32f4xx.h, the system uses an external 8M crystal oscillator ...[Details]
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Many existing Ethernet devices are migrating from wall adapter power to the new IEEE 802.3af Power over Ethernet (PoE) standard. In the past, power system efficiency was not a big issue with wall adap...[Details]
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1. Project Overview 1.1 Introduction At present, most music files are saved in MP3 format, which is a lossy audio compression format that cannot perfectly reproduce the original music. With the expa...[Details]
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On March 3, according to the Ministry of Industry and Information Technology micro-blog, recently, some netizens and media reported that some websites forced users to download APPs when browsi...[Details]
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LED drivers that match traditional TRIAC and do not have electrolytic or capacitors will become popular. With the innovation of LED driver design, the defects of flicker and short life of LED drive...[Details]
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When selecting EMC test equipment, we often encounter the following questions: What is the difference between an EMI receiver and a spectrum analyzer? Why should we use a receiver for EMI testing? Th...[Details]
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