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1. Contactless card reading principle This series of articles mainly discusses ID cards in the 125KHz frequency band. IC cards in the 13.5MHz frequency band are not within the scope of this article. ...[Details]
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Add the storage path of arm-linux-gcc in /etc/profile
Specifically, enter #sudo gedit /etc/profile in the command line and press Enter
export PATH=$PATH:/the path where your arm-linux-gcc is stored ...[Details]
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On April 27, the City Intelligent Energy Management System (CIEMS) independently developed by the State Grid Xiong'an New Area Power Supply Company officially entered Huawei's Yanxuan Mall, and com...[Details]
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Industrial computer, whose full name is industrial control computer, also known as industrial computer, is a high-reliability, high-stability, high-performance computer system specially designed to...[Details]
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When configuring the interrupt priority of each peripheral, most development boards used for learning are used to configure the NVIC group in the initialization file of each peripheral. For example, ...[Details]
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Recently, PetroChina invested 500 million yuan to establish a new company, PetroChina (Beijing) Digital Intelligence Research Institute Co., Ltd., with a wholly owned stake. Its business scope cove...[Details]
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Subsequent orders prove the high reliability of Manz energy storage technology Total order value: approximately EUR 20 million The continued growth trend in the consumer electronics sector conti...[Details]
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As an important part of EMC (electromagnetic compatibility) testing, EMI pre-testing is a comprehensive evaluation of electromagnetic interference of electronic products and is one of the important i...[Details]
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The structure and working principle of the low-power clock device DS3231 launched by Dallas Company in the United States are introduced. DS3231 can count the year, month, day, hour, minute and second...[Details]
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Abstract: Introducing the improved design of the cathode pulse amplifier of the light point tester. After adding the original light point tester cathode pulse amplifier to the circuit automatic ...[Details]
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Experiment name: Performance test and analysis of fluxgate sensor based on MEMS process flexible substrate This paper mainly builds a fluxgate performance test system. The main test equipment inclu...[Details]
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The above two sets of data come from the financial report of iFlytek, which has been controversial recently. Some people believe that iFlytek is supported by government subsidies. iFlytek's po...[Details]
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Recently, the silicon carbide substrate wafer developed by Hangzhou Qianjing Semiconductor Co., Ltd. (hereinafter referred to as Qianjing Semiconductor) passed the company's internal quality inspecti...[Details]
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The touch screen computer dual control building materials smoke density tester is developed according to the technical conditions specified in the national standard GB/T8627-2007 "Test method for smo...[Details]
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In communication, automatic control and telemetry systems, low distortion automatic gain control circuits are required. As shown in the figure, a low distortion AGC amplifier is shown. A1 is an ampli...[Details]
DSP and ARM Processors
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