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1. Identify positive and negative poles According to the pin arrangement of the photodiode, the pin close to the tube key or marked with a color dot is the positive pole (i.e., P pole), and the other...[Details]
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Combining the DSP and the microcontroller to form a dual-CPU processor platform can make full use of the DSP's processing capabilities for large-capacity data and complex algorithms, as well as the ...[Details]
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Analog video is a mature, reliable technology that has been extended to meet the requirements of automotive applications. Reasons for the continued use of analog video include the ready availabilit...[Details]
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Summary: SPI has a faster speed, but can only have one master and multiple slaves, and the management line is more complicated. IIC and other technologies are slower and have more redundant data, b...[Details]
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I debugged STM32F407+DP83848 long before I graduated. I debugged it again this time, and it took me 2 days. STM32 supports two industrial standard interfaces to connect to the external physical layer...[Details]
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On April 8, Xinpengwei released its 2020 performance report, stating that the company achieved operating income of 429 million yuan, a year-on-year increase of 28.11%; the net profit attributable to ...[Details]
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Computer experts at the German Research Center for Artificial Intelligence (DFKI) and the Center for IT Security and Privacy (CISPA) are working on an app that would prevent hackers from attacking ca...[Details]
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In the blog post about RF Data Converters, we looked at what a software driver is and how it can be used to manage the state and control of RF Data Converter IP. We have shown how you can write a s...[Details]
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Through statistics of various failures in UPS maintenance work, we can draw the following conclusion: For backup UPS power supply , failures caused by batteries account for more than 50% of the t...[Details]
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The modernization of programming languages and better coding techniques are directly related to the evolution from mechanical computers to modern software development processes. We have moved fro...[Details]
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Hybrid vehicle technology is gaining more and more attention from OEMs and parts manufacturers. The nine major domestic independent brand automakers have all made the development of plug-in hybri...[Details]
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Keithley's SourceMeter series is designed for test applications that require a close combination of excitation source and measurement functions, a precision voltage source, and simultaneous current a...[Details]
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A few days ago, I wrote an article about CVT, titled "I want to seek justice for those CVTs that you have wronged", and netizens discussed or expressed their feelings a lot. Many people also asked me...[Details]
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1 Testing of controls such as text boxes and buttons
1.1.1 Testing of text boxes
How to test text boxes
a. Enter normal letters or numbers.
b. Enter the name of an existing file.
...[Details]
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Ultrasonic level meters have the characteristics of non-contact measurement and easy installation. They are widely used in the field of liquid level measurement. However, they still have many limit...[Details]