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74ls164 application circuit This article uses the 74LS164, a serial-in and parallel-out shift register, which perfectly solves the display interface circuit between 2051 and LED. 1 Hardware circuit...[Details]
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Who invented the AC motor?
The AC motor was invented by Serbian-American scientist Nikola Tesla. The AC motor is a machine used to achieve mutual conversion between mechanical energy and AC el...[Details]
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In steady current mode, LED display manufacturers must provide overvoltage protection for driver components. The LED is disconnected from the power supply , so that when the power fails, there is...[Details]
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On the evening of April 28, Huawei held a press conference for its foldable screen flagship and all-scenario new products, officially launching new products including the HUAWEI Mate Xs 2 folda...[Details]
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Recently, the series of technological blockade policies promoted by the United States have been jaw-dropping. The world technological order that we are accustomed to is undoubtedly being changed and ...[Details]
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{Business needs} Sometimes we want to use the parameters configured in EEPROM during simulation, instead of resetting them every time. {Configuration method} Project- Right click- Debugger- JTAGICE ...[Details]
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X -ray Photoelectron Spectroscopy
(X-ray Photoelectron Spectrom-----XPS) is a new method in the field of surface analysis. Although the use of X-rays to irradiate solid materials and me...[Details]
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On January 26, according to 9to5Google, Google Pixel 3 series will no longer push updates. Google said that "the three-year update and maintenance cycle provides consumers with a great user exper...[Details]
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Episode 5
I explained how to use 74HC573, which I recorded in "51 MCU Review Notes 1 (Update)".
The Keil simulation method is explained. The more useful content is that it can be used to test the t...[Details]
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With the continuous upgrading of car engines, the sense of technology inside and outside the car is getting stronger and stronger. The biggest feeling we have is that cars have more and more function...[Details]
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Car headlights can not only complete the lighting function, but also adjust the lighting brightness and area in time according to the road conditions, which not only provides the driver with a good v...[Details]
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On May 7, TechGoing exposed the protective case of Google Pixel 7 Pro. The leaked pictures show that Google Pixel 7 Pro continues the design language of Pixel 6 Pro, with three rear cameras arranged ...[Details]
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It has been nearly half a year since I started working on ARM. I have made some progress on my first project. I finally feel like I have gotten started. In the past six months, I have experienced the ...[Details]
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1. Introduction to DMA 1. Introduction to DMA DMA (Direct Memory Access) is a data transfer method that can greatly reduce the CPU workload. The CPU has many functions such as transferring data, c...[Details]
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introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that has developed rapid...[Details]