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LED (Light Emitting Diode) is a light-emitting component. Its structure is actually a PN junction of a semiconductor. The basic working mechanism is an electro-optical conversion process. That is, whe...[Details]
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Abstract: In order to embed the stereo FM digital radio function in electronic products. Using the single-chip microcomputer AT89S52 and TEA5767HN as the hardware core, the software design is carri...[Details]
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: Digital Water Permeability Tester - Hydrostatic Pressure is used to test the water-proof performance of various waterproof fabrics (such as canvas, coated fabric, tent fabric, tarpaulin, rainproof ...[Details]
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I have been puzzled about the problem of start_kenal in the arm linux kernel for a long time but still can't solve it:
In include\linux\Cupmask.h, there are the following definitions
typedef struc...[Details]
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Soft start technology is an emerging technology for controlling and starting motors. Nowadays, it has received widespread attention from modern people and has been actively applied in corporate pro...[Details]
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The terms spectrum analyzer and signal analyzer are often used interchangeably, but there are some differences in their functions and capabilities. Today’s analyzers can perform more comprehensi...[Details]
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In the previous section, we mainly configured the fb_info structure. The configuration of the fb_info structure is mainly divided into the following steps:
static int lcd_init(void)
{
...[Details]
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Imagine being able to use a small and inexpensive device to check which parking spaces in a parking lot are full and which are available; or use it to detect traffic jams, so as to change the route t...[Details]
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The essence is the connection method of light-emitting diodes (LEDs). Multiple LEDs arranged in the shape of a "sun" are called a digital tube. Common cathode and common anode means that one end is un...[Details]
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According to foreign media reports, South Korea's semiconductor exports reached US$9.4 billion in April, up 29.4% due to strong demand for logic chips and memory chips. Among the semiconductor produc...[Details]
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Use a frequency converter to control the fan. When the fan stops, the motor runs due to inertia and regenerates electricity. The frequency converter gives off an overvoltage alarm. How should this ...[Details]
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Pressure controllers can be classified by pressure sensing element, set value, switching difference, properties and application. According to the pressure sensing element, they can be divided into ...[Details]
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Honor, once the top online brand, is now in a difficult situation. Before and after leaving Huawei, Honor did not release any mobile phone products for more than half a year, and only relied on the p...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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Soft starters and frequency converters are two types of electrical equipment widely used in the field of industrial automation. They have certain differences in functions, working principles, appli...[Details]
Power technology
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