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The Hong Kong Global Electronics Show (Global Sources Consumer Electronics) was held at the AsiaWorld-Expo in Hong Kong from October 11 to 14, 2019. As the flagship exhibition of Global Sources, the ...[Details]
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0 Introduction The machine vision system is a non-contact optical sensing system. It integrates both software and hardware and can automatically obtain information from the collected images or gener...[Details]
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74HC595 drives 8 digital tubes source program: /*---------------------------------------------------------------------*/ /* --- STC MCU International Limited ----------------------------------*/ /* -...[Details]
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1. The display does not show anything
(1) Check the power supply of the screen, use a test pen or multimeter to check whether there is power at the electrical end where the switch is conne...[Details]
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On January 18, market research firm Counterpoint released a report stating that considering the large-scale new factory construction plan, TSMC has announced capital expenditures of US$40 billion to ...[Details]
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At present, when designing the control panel of the instrument, various buttons are mainly used to generate control signals by detecting whether the buttons are pressed. However, in some occasion...[Details]
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With the development of power electronics technology, voltage stabilization power supplies have been widely used in voltage stabilization and protection of modern high-tech products such as computers...[Details]
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When repairing a TV, it is often necessary to check whether the high voltage inside the TV is normal. However, since the high voltage inside the TV is generally above 9kV, it cannot be measured with ...[Details]
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Is it necessary to calibrate each time before measuring a new item?
This is not necessarily necessary. Try to store each calibration state in the VNA. It is best to name it the calibration state, suc...[Details]
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basic concept There are two types of communication: serial communication and parallel communication. Serial communication can be divided into two categories: asynchronous communication and synchronou...[Details]
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Introduction to Optical Time Domain Reflectometry Optical Time Domain Reflectometer (OTDR) is a very important tool in fiber line testing and acceptance. With the help of OTDR, technicians can see th...[Details]
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In some applications that require fast response, strong real-time performance, and large amounts of control, multiple microcontrollers combined with PCs are often used to form a distributed system. I...[Details]
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I tried to find a header file for a long time but it didn't work! I was almost discouraged, but suddenly I had an idea: could it be that the Flash of mega8 is not working? This mega8 has been with me...[Details]
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Developing mobile handsets with touchscreen human-machine interfaces is a complex design challenge, especially for projected capacitive touchscreen designs, which represent the mainstream technology ...[Details]
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Using the energy storage characteristics of capacitors and inductors, high-frequency switching is performed through a controllable switch (MOSFET, etc.), and the input electrical energy is stored in ...[Details]
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