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1. Introduction to LED dot matrix The LED dot matrix is composed of multiple small LED lights, and is introduced as an 8*8 LED dot matrix. The actual picture and internal schematic diagram are as f...[Details]
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On November 20, the 2024 World Internet Conference "Light of Internet" Expo opened in Wuzhen, Zhejiang.
At the meeting, China Mobile and industry partners including Huawei, ZTE, H3C, Ruijie, C...[Details]
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first part Source: https://www.amobbs.com/thread-5561786-1-1.html?_dsign=d5a64904 the second part #include 'SystemInit.h' #include 'ADC.h' #include 'Delay.h' #include 'mat...[Details]
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iPhone 11 sales exceeded expectations, and Samsung Display's OLED (organic light-emitting diode) panel supply was 10% higher than originally planned. On the 10th of last month, Apple released the i...[Details]
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DMA is used to connect data transmission between external devices and internal devices. With it, you can bypass the CPU and directly perform data transmission. But at the same time, DMA transmission a...[Details]
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"It depends on whether you are willing to change yourself. All the pain can only be accomplished by changing yourself. In the future world, if you want to succeed, remember, you should not only think...[Details]
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The ordinary timer of STM32 has four outputs: TIMx_CH1, TIMx_CH2, TIMx_CH3 and TIMx_CH4. The output comparison method can be used to generate square wave outputs of different frequencies. The simple m...[Details]
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Due to the recent boom in new energy, many enterprises and institutions have turned their attention to this emerging energy, including nuclear energy, wind energy, solar energy, etc. In addition to...[Details]
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1. Measurement of high frequency voltage In order to analyze the influence of the voltmeter on the measured circuit, we study the equivalent circuit of the voltmeter. The larger the ci of the voltmet...[Details]
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Call the library function RCC_GetClocksFreq, which returns the frequencies of various clocks on the chip.
Function prototype void RCC_GetClocksFreq(RCC_ClocksTypeDef* RCC_Clocks)
RCC_ClocksTypeDef ...[Details]
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The CF card is read and written through the 8051 microcontroller.
2. How to operate the CF card
The operation of CF card is similar to the operation of computer hard disk. There are two wa...[Details]
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Contents The invention relates to a Bitopard mass flowmeter for measuring the mass flow of a fluid in a pipeline, and in particular to a Bitopard integrated mass flowmeter for measuring the mass flow...[Details]
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What are the speed control methods of DC separately excited motor?
There are two ways to control the speed of the electric drive system of a separately excited DC motor: mechanical speed contr...[Details]
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The 8-bit microcontrollers PIC12C508(A)/509(A) and PIC12CE518/519 produced by Microchip have only 8 pins, and their pin arrangement is shown in the figure below. This product is one of the basic level...[Details]
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0 Introduction The transportation of liquid materials is one of the main contents of daily transportation activities, such as various oils, liquid acids, copper sulfate solutions and other liquid ch...[Details]