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The electric energy metering system is a metering instrument that measures the amount of electric energy consumption, and its technical requirements are very high. It requires not only accurate measur...[Details]
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This is just a measurement trend, not a very precise measurement.
Once again, we reiterate that different channels of the STM32 ADC correspond to different pins. In this code, PA1 corresponds to chan...[Details]
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With the development and progress of science and technology, intelligent machines with special functions have emerged, such as the pet robot dog produced by Sony that can "feel", "learn" and "feed" w...[Details]
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According to xiaomiui.net, it has been a few months since the launch of the Xiaomi 12 series, and it looks like Xiaomi is already preparing for its successor. Recently, traces of the Xiaomi 12S ...[Details]
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The power filter is a two-stage power filter network composed of inductors and capacitors. The frequencies to be suppressed are mainly the PFC operating frequency of about 50kHz and the DC/AC switchi...[Details]
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With the development of modern science and technology, people have higher and higher requirements for the monitoring of moving targets. For example, ground target tracking and alarm systems can assis...[Details]
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1 Introduction In modern microwave wireless communication systems, passive components such as filters and duplexers play a very important role. If traditional metal waveguides, microstrip lines o...[Details]
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In recent years, with the accelerated development of new energy vehicles, charging piles, variable frequency home appliances and other industries, the domestic IGBT demand has exploded, and the domes...[Details]
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0 Introduction In electronic measurement, we often encounter the measurement of network impedance and transmission characteristics. Amplitude-frequency characteristics is one of the important tr...[Details]
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We know from the microcontroller that at the moment of power-on, the MCU's program pointer PC will be initialized to the address at the power-on reset, from which address the instructions to be exe...[Details]
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There are about 20 days left before the graduation project. I have been busy with the graduation project these days. Today, I finally solved the problem of 51 single-chip microcomputer and serial por...[Details]
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Recently, digital blogger @长安数码君 exposed the front panel of Huawei nova 8 and said that the phone will be equipped with an OLED screen with a maximum refresh rate of 120Hz, but the size of the screen...[Details]
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Smart bracelets are the star products in the smart wearable ecosystem. GNSS trajectory positioning, health indicator monitoring, sports mode, etc. further blur the boundaries between bracelets and ...[Details]
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The carrier of fingerprint recognition technology - fingerprint reader, is a high-tech security product that combines fingerprint collection head and its supporting software to enhance the encryp...[Details]
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The main problems of outdoor screens are as follows:
(1)
Display screens
are installed outdoors and are often exposed to the sun, rain, wind and dust, and have a harsh working envir...[Details]
MCU
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