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There is heaven above and Suzhou and Hangzhou below. Hangzhou, a city full of e-commerce atmosphere, lacks some "big brand" temperament compared to its neighbor Shanghai, but it has a vibrant "Wu Y...[Details]
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1. LEDs used in backlight modules have the advantage of saving power
LED is used as a light source in the backlight module to replace the traditional cold cathode fluorescent lamp (CCFL). It i...[Details]
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No peak is detected after injection of gas chromatograph, and only a straight line is drawn for the baseline. Note: When you find that no peak is produced during injection, you should first consider ...[Details]
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Known as the "crown jewel of the manufacturing industry", its research and development, manufacturing and application are important indicators of a country's scientific and technological innovation...[Details]
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On August 8, Jinlong Electromechanical announced that Guangdong Jinxingchuang Precision Technology Co., Ltd. ("Jinxingchuang"), a wholly-owned subsidiary of the company, plans to jointly invest with ...[Details]
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1. S3C2440 clock
1. Clock Tree
From the clock tree in the technical manual of s3c2440, we can know that its clock is divided into four blocks: FCLK, HCLK, PCLK, and UCLK. FCLK is m...[Details]
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Foxconn CEO Terry Gou was recently photographed holding a distinctive iPhone at a meeting, and concept designer Ben Geskin said it might be the iPhone 11 released this year. Judging from the pict...[Details]
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On the afternoon of September 26, the domestic launch conference of Huawei's 2019 flagship mobile phone Mate30 series was held in Shanghai. At the press conference, Huawei Consumer Business CEO Richa...[Details]
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Specific function implementation When the switch is pressed, the angle of the servo moves to 0°, 45°, 90°, 135°, 180°, 0° (final stop position) respectively, with a time delay of 1s for each angle of...[Details]
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Detailed protocol testing in the "Bluetooth Qualification Procedure" is absolutely necessary for every new radio module that is put on the market. This article describes how to carry out such test...[Details]
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The Serial Peripheral Interface (SPI) bus is a synchronous serial data link that operates in full-duplex mode. It is used to exchange data between a single master node and one or more slave nodes. ...[Details]
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The ground resistance tester is a special instrument for measuring ground resistance. To choose a high-quality and cost-effective ground resistance tester, you must first understand the external stru...[Details]
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Today i installed and set the tftp,because i may use this tool to download your kernel and filesystem image to my target board. process: sudo -i 1、Install tftpd and related packages. # apt-...[Details]
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According to GSMArena, Black Shark Mobile launched the Black Shark 5 series in March, which includes three smartphones - Black Shark 5, Black Shark 5 Pro and Black Shark RS. These are currently ...[Details]
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iCoupler digital isolators are widely used to transmit digital signals across an isolation barrier. In some cases, digital isolators are also very useful in non-isolated applications. – 48V DC-DC pow...[Details]