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The working principle is shown in the drawing: it is mainly divided into three parts. They are power supply circuit, satellite box amplifier circuit, and subwoofer circuit.
1. Power sup...[Details]
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The simplest capacitor is composed of plates at both ends and an insulating dielectric in the middle. When powered on, the plates are charged and voltage is formed, but due to the insulating materi...[Details]
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As night falls, on the coast of the East China Sea, the "Port Connects the World" sign of Ningbo Port is lit up as bright as day, the high-rise buildings in the southern business district are full ...[Details]
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White LEDs are widely used in small liquid crystal display (LCD) panels and keyboard backlight and indicator applications. High-brightness LEDs are used as flash sources in mobile phones and digi...[Details]
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When Google released the Pixel 4a in early August, it also announced that the Pixel 5 and Pixel 4a 5G would also be launched, and the starting price was announced to be $499. Recently, the foreign we...[Details]
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Important section: ble_gap_addr_t ble_mac_addr = {0}; sd_ble_gap_addr_get(&ble_mac_addr); // Get the current mac address of ble first ble_mac_addr.addr ++; //Add 1 to the address. Or get a ...[Details]
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If there is a manual, please refer to the manual for the most detailed information. The table uses a special test port for the capacitor (with a capacitor mark) instead of a test lead. The gear selec...[Details]
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When the QQ Speed Mobile game was announced, the famous singer Zhang Jie also arrived at the scene to contribute his own strength to the QQ Speed Mobile game, allowing this 11-year heritage to pr...[Details]
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#include "UART.H" /*-------------------------Serial port initialization function------------------------*/ /*********************************************************** * Function name: void UART...[Details]
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The next battleground for infotainment systems will shift to user interface (UI) technology. Consumers are no longer comparing minor differences in feature sets when making purchasing decisions, but a...[Details]
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In June 2023, the international standard ISO/TR 9968: 2023 Road vehicles — Functional Safety — The application to generic rechargeable energy storage systems for new energy vehicles, which was led ...[Details]
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According to news on February 5, AMD Threadripper has raised the ceiling for workstations and desktop processors. Although Intel Xeon is unable to compete, it cannot give up. It is just limited by it...[Details]
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With the increasing application of digital integrated circuits, the types of digital circuit products are increasing. If classified by purpose, they can be divided into three categories: general-pu...[Details]
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Peak-to-Peak Definition Peak-to-peak value refers to the difference between the highest and lowest values of a signal in a cycle, that is, the range between the maximum and minimum. It describe...[Details]
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Hardware Platform
S3C2410X is Samsung's S3C2410X chip based on ARM920T. S3C2410X integrates an LCD controller (supports STN and TFT LCD screens with touch screen), SDRAM, touch screen, USB, SP...[Details]
Test/Measurement
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