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Specific implementation functions The system consists of STC89C52 single chip microcomputer + 4 times 4 key module + LCD1602 liquid crystal display + power supply. Specific functions: Using a 4×4...[Details]
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Recently, a new realme phone with model number RMX2173 was connected to the network. It is expected that this phone is the hot-selling model that realme Vice President Xu Qi mentioned will be release...[Details]
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First in line: fingerprint recognition In the past two years, as people's awareness of privacy protection has increased and the security of funds in the field of mobile payments has been faced with s...[Details]
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For long-distance line connection, we usually use devices such as fiber optic transceivers. However, when setting up ring network protection, we must solve a problem, that is, the on and off status...[Details]
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Host environment: Windows 7 SP1 Development environment: MDK5.14 Target board: ST NUCLEO-F303RE TFT model: 2.4 inches, with touch, SD card, 240*320 resolution, 260,000 colors Driver IC:ILI9325 ST lib...[Details]
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Supply chain sources pointed out that as the process yield of Yangtze Memory and Changxin Memory increases, their production capacity will gradually expand this year. At the same time, the importance...[Details]
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The rapid development of the packaging industry has led to the rapid growth of packaging companies, and the accompanying competition has become increasingly fierce. In order to occupy a larger market...[Details]
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According to news on the morning of December 15, Xiaomi Group recently released its first intellectual property white paper. The white paper disclosed that as of September 30, 2022, Xiaomi had more t...[Details]
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Canteen vegetable pesticide residue detector FT-QNC3 fake pesticides are rampant. Due to insufficient supervision of the rural market, some companies produce low-toxic pesticides that contain highly ...[Details]
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CPU: AT91SAM9G20
Linux kernel: 2.6.30
When I got the board, the telnet service didn't work well, so I thought about transplanting an ssh server onto it.
2. First download the source ...[Details]
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Gartner's recent research shows that as cloud computing technology matures and is widely adopted, more than 60% of companies have adjusted their cloud strategies to the core of their business ope...[Details]
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On November 16, Alibaba Group announced its second quarter financial report for fiscal year 2024, which disclosed that due to various uncertainties, it will no longer promote the complete spin-off of...[Details]
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Compared to many computer technologies, flash memory has a relatively short history, but it can be said to be a technology that has grown rapidly in response to the huge and rapidly changing storage ...[Details]
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As a measuring instrument, gas chromatograph is widely used in the fields of petroleum, chemical industry, environmental protection, clinical, pharmaceutical and food due to its high efficiency, hi...[Details]
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01
Information security requirements
This chapter mainly introduces the information security requirements from four aspects: hardware security, system security, communication security, an...[Details]
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