The power of science and technology is everywhere in our lives. Many things we use in our daily lives are produced because of the high level of science and technology, and these products have been wid...
My system uses a Philips 80C51 microcontroller P89LV51RD2, whose temperature range is 0-70 degrees. The microcontroller system has been baked at room temperature for at least 2 weeks without reset. Af...
1.Experimental tasksAs shown in the figure below, P1.0 - P1.3 of the microcontroller are connected to four light-emitting diodes L1 - L4 , and P0.4 - P0.7 are connected to four switches K1 - K4 . The ...
Reprinted from: deyisupport[align=left]Author: Tim Goodrow[/align][align=left][img]http://www.deyisupport.com/resized-image.ashx/__size/550x0/__key/communityserver-blogs-components-weblogfiles/00-00-0...
There is a chip shortage now. Are there any domestic chips that can replace this buck-boost chip from Lingte? LTC1517ES5-3.3, SOT-23 package, 2-4.4V can be buck-boosted to 3.3V, so that the capacity o...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]