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On February 9, the Ministry of Education, the Ministry of Finance, and the National Development and Reform Commission announced the list of universities and disciplines for the second round of...[Details]
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This design uses NEC upd78F0547 microcontroller as the main controller. The output current of the DC power supply is set through the keyboard, and the output voltage and current values can be dis...[Details]
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The safety of electric vehicle power batteries has always been a core concern for consumers. After all, when most people see a natural car on the road, their first reaction is almost always, "The ele...[Details]
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1. How to
measure
DC
voltage?
A: First, you need to set the coupling mode to DC, adjust the vertical scale to a suitable value based on the approximate range, and then compare ...[Details]
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1. Configuration environment 1. Install arm-linux-gcc compiler 2. Compile qt-everywhere and install 3. Install Qt Creator Specific reference: http://www.cnblogs.com/oceanking/archive/2012/09/04/26711...[Details]
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Artificial intelligence has become the biggest trend of this era. As the link with the most connections in "food, clothing, housing and transportation", smart connected cars have also been pushed to ...[Details]
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Xiaomi Group and the US Department of Defense have once again issued a Joint Status Report (JSR) on the military list litigation. According to the document, the US government acknowledged the procedu...[Details]
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1. Sampling rate 1. Concept Computers can only process discrete digital signals. The first problem faced by analog voltage signals after entering the oscilloscope is the digitization (AD conversion) ...[Details]
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At present, many mobile phone manufacturers have not commercialized the under-screen front-facing camera. The most fundamental factor is that the effect of the front camera emission is not very ...[Details]
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Multimeter is one of the most used instruments by radio enthusiasts and electronics enthusiasts. With the development of measurement technology, multimeters have evolved from the pointer display of ...[Details]
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1 Introduction 光纤具有测距，可复用，非破坏性报警，报警温度可调，传感器输出为光信号，抗电磁干扰等优点。所以现代通信中使用光纤作为信号的传导介质，而在信号的传输过程中，由于温度过高或过低引起的通信中断也时有发生，造成了很大的经济损失，使得对光纤沿线的温度进行实时监测具有很大的实用意义。基于拉曼散射的分布式光纤测温技术，是近十几年来迅速发展的新型测温技术。利用光纤作为温度信息的传感和...[Details]
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statement is unreachable, which is usually not a big deal. It just means that the program cannot execute here.
for example:
while(1)；
i = 1；
In this case, the line i=1; w...[Details]
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/****************************************************** *************************/ // !!! Remember!!! Flash life is limited, don't keep erasing while the program is running!! Erase it...[Details]
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0 Overview
Frequency measurement is one of the most basic measurements in electronic measurement. With the development of electronic science and technology, the accuracy requirements for signal fre...[Details]
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There are many types of flow measurement methods and instruments, and there are also many classification methods. According to the measurement object, there are two major categories: closed pipe and o...[Details]
DIY/Open Source Hardware
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