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On March 31, the Shanghai Stock Exchange officially accepted the application of Xinhai Technology (Shenzhen) Co., Ltd. (hereinafter referred to as "Xinhai Technology") for listing on the Science and ...[Details]
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The spectrum analyzer, also known as the "RF multimeter", is a widely used basic RF and microwave measuring instrument. It is often used to measure harmonics and spurious measurements of amplifiers/t...[Details]
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As the core component of LCD TV, the TV screen plays a vital role in LCD TV. When buying a TV, there is a saying that "choose a TV, look at the screen first". In order to promote their own TVs, man...[Details]
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Recently, TCL Group issued an announcement on the completion of the transaction price payment of the counterparty of the major asset sale and related-party transaction. TCL Group received the remaini...[Details]
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1. Ctrl+S saves the current file, as shown in the figure.
Two files are opened, and you can see that one file has an asterisk and a red cross. The red cross indicates that it is the currently op...[Details]
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A new system was built, which uses line laser for real-time 3D reconstruction. It does not need to judge the position every time to start taking pictures. Two proximity switches were added. When the ...[Details]
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Advantages and disadvantages of ordinary multimeter and digital multimeter
Both analog and digital multimeters have their own advantages and disadvantages.
Pointer multimeter is an averag...[Details]
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By sampling the voltage value at a certain point and comparing it with the preset value, we can determine how the MCU should work next.
For example: when the voltage at a certain point is detected...[Details]
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iMEMS accelerometer ADXL345
iMEMS semiconductor technology integrates micro-mechanical structures and electronic circuits on the same chip. iMEMS accelerometers use this technology to measure sin...[Details]
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Lu Weibing, general manager of the Redmi brand, announced a good news last night that Redmi K30 Pro can try Android 11 Beta 1. It is reported that Android 11 Beta 1 focuses on three themes: people-...[Details]
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For circuit designs that use complementary bipolar transistors , it is sometimes necessary to screen NPN and PNP transistors that match their DC gain (β) . An example of such a circuit that re...[Details]
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虽然5V电源逻辑在很多应用中仍很常见，但大多数FPGA都支持3.3V以及更低的接口电平。FPGA应用说明通常建议，当把一只FPGA连接到较高电压电平时，FPGA的I/O块中要用PCI(外设部件互连)总线箝位二极管，并外接一只串联限流电阻，以防止损坏FPGA(图1)。PCI箝位二极管会将电压限制在不致损坏输入端的电平，而电阻则将电流限制在一个不会损害PCI箝位二极管的安全水平。这种方案在低速信...[Details]
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Introduction
In the existing market in my country, smart windows, as part of smart homes, are mainly developed around individual families. However, as people's requirements for sma...[Details]
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A dust particle counter is a special device used to detect the particle size and distribution of airborne dust particles. It was originally developed from a microscope. The detection speed of a parti...[Details]
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Advances in healthcare equipment are exciting. Improvements in healthcare equipment design are putting vital sign monitoring capabilities in the hands of athletes and fitness enthusiasts, but more im...[Details]
GD32 MCU
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