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A DC motor is a machine that converts electrical energy into mechanical energy. They use a direct current (DC) power source to provide electrical energy and use the interaction of electric and magn...[Details]
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The frequency converter is a device that converts the industrial frequency power supply (50Hz or 60Hz) into AC power supply of various frequencies to achieve variable speed operation of the motor...[Details]
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This test demonstrates the keyboard monitoring program. Its execution results are: after power on,
If you press p3.2 on the small keyboard, the digital tube will display 0.
...[Details]
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In life, many people advocate simplicity, believing that it is the true face of life and the truth that should be pursued. The design of high-speed circuit systems advocates this principle even ...[Details]
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Light is an electromagnetic wave, and wave theory is generally used to analyze the basic principles of light guidance. However, according to optical theory, in a space where the size is much larger th...[Details]
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The item left behind reminder alarm introduced in this article is small in size, with an outer size of 17×35×100mm, like two matchboxes, and a control distance of 1-5m (can be adjusted to 15m). It ...[Details]
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With the rapid development of artificial intelligence/machine learning (AI/ML) and large language model (LLM) technologies, the field of software development is changing rapidly. According to a rec...[Details]
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On November 15, the Wuxi Xishan Integrated Circuit Equipment Industrial Park key project investment promotion meeting was held. At the meeting, the Xibei Town People's Government signed contracts wit...[Details]
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Finally got a USB HID device and made a USB keyboard to play with~~~~The report descriptor made me dizzy for a few days~~~~~Several HID-related protocols are quite long~~~~~~Tomorrow I will make a USB...[Details]
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Excessive heat or improper application can greatly reduce the performance of LED light sources.
PPTC components
are made of polymer positive temperature coefficients (Polymer Positive Temperature...[Details]
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Before making the circuit, let's take a look at the MAX232 to be used. We will not discuss it in detail here. Just know that it is a chip that converts TTL and RS232 levels and has basic pin ...[Details]
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Jiwei.com reported on April 17 that recently, MTS Russia and Huawei launched 5G networks at 14 landmarks in Moscow, and through the local event "5G is coming", fully demonstrated to consumers the new...[Details]
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Today, @ROG Gaming Phone’s official Weibo account released a message, saying that ROG Gaming Phone and Tencent Games have reached a three-year brand strategic cooperation, and released a poste...[Details]
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The output filter inductor of the switching power supply is also called a smoothing choke. Its main function is to flatten the rectified current to obtain a more stable output and a smoother wav...[Details]
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Volkswagen Japan (VGJ) has completely improved and launched the mid-size sedan "Passat" in Japan (Figure 1). Its biggest feature is that although it is a D-class car, its 10·15 mode fuel efficiency...[Details]
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