The same data packet! The PC and LED screen communicate normally! The mini2440 serial port and LED screen communication have no response! Then connect the mini2440 and PC and check the serial port dat...
I learned from E2E that motorware has been upgraded to version 15. I have been downloading since the first version, and now it is version 15. To be honest, I like and dislike this upgrade. Why do I sa...
The client sends data packets through the socket periodically. Each packet is about 1K. If a small number is sent in a cycle, it is normal. If too much is sent, the connection will be disconnected. Wh...
With the advancement of computer technology, the development of image processing and pattern recognition methods, fingerprint processing technology has become more mature and has been widely used i...[Details]
Blood pressure is one of the important physiological parameters of the human body. Accurate measurement of it is conducive to early detection and identification of hypertension types, and to the pro...[Details]
Controller Area Network (CAN) is a type of fieldbus. It is a serial communication network that effectively supports distributed control or real-time control and is recognized as one of the most pro...[Details]
Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
introduction
The data detected by various measuring instruments often need to be transferred to the PC for data processing and archiving, so as to make full use of the rich hardware and softwa...[Details]
introduction
Cars are becoming an indispensable part of people's lives. However, what worries car users is that the theft of cars is increasing year by year. This paper aims to design a conven...[Details]
introduction
In engineering practice, ultrasonic waves are often used to measure distances because of their strong directivity, slow energy consumption, and long propagation distance in th...[Details]
0 Introduction
With the continuous progress of society and the improvement of people's living standards, environmental protection and energy conservation have received more and more attention....[Details]
"Where am I? Where am I going? Where is he/she? How far is he/she from me?..." Do you often have such questions like me? In fact, who can deny that these are questions that we often think about, ev...[Details]
With the development of science and technology, the improvement of living standards and the acceleration of the pace of modern cities, people are increasingly pursuing more convenient, practical an...[Details]
1. Overview:
Electronic sphygmomanometers are currently widely used and promoted due to their advantages such as non-invasiveness, simple operation, and portability. There are many methods...[Details]
In view of the fact that a single ordinary type of fire detection alarm can no longer meet the demand, the use of multiple sensors to comprehensively collect various abnormal information before a f...[Details]
Modern living patterns make the safety of family life particularly important. At present, security prevention and alarm systems are important guarantees for ensuring the safety of residences and re...[Details]
The following figure is a schematic diagram of the fiber optic video surveillance network solution of OnAccess@ of Shoumai Communication. It is completely based on video digitization and Ethernet t...[Details]
In industrial and agricultural production, the transmission of collected data is mostly done by wired means, because the transmission distance, data transmission rate and anti-interference ability ...[Details]
Analog electronics
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