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S 文章(这部分加style只是为了看效果,基本上表现都受编辑器设置控制)RC charging calculation method
Reprinted from: http://hi.baidu.com/cumtsun/blog/item/b8ee5f16561cae4e20a4e93c.htmlExample 1 : As shown in the figure, ...
Whether it is high or low, the relay will work. When it is high, the voltage difference between the 3rd and 4th pins of the optocoupler is 10V, and the relay is 24V. Shouldn't it be 0 when it is high?...
Hello everyone, I have a few questions to ask you. I am studying the Bluetooth device of embedded system recently. The CPU used is s3c2443, and the OS is WinCE Platform Builder 5.0. I want to build a ...
Now I have a large constant array const int testdata[1000]. In order to save memory, I want to put it in the code segment. How do I declare it? In the past, in the microcontroller, the bytes were simp...
The problem of HPS accessing the i/o port of FPGA through the HPS-to-FPGA bridge. It is not a lightweight bridge. Has anyone done it before? I have been working on it for two days, but it doesn't work...
Dear heroes, the clock of the crystal oscillator is main_clk. After dividing the clock, we get the AD clock AD_clk. However, in the actual circuit diagram, I connected AD_clk to the pin corresponding ...
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
Product series: PB-B-RS232/485 interface (hereinafter sometimes referred to as "interface") is a product in the PROFIBUS bus bridge series.
The main purpose of the bridge series ...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
introduction
MAX6636 is a multi-channel precision temperature monitor that can not only monitor local temperature, but also connect up to 6 diodes externally. Each channel has a programmable...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
Analog electronics
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