I have been working on STK-related applications recently. I have no previous experience. After finishing GSM11.14, I still have some questions to ask the experts in the forum! Proactive SIM will use 9...
Dear experts, what is the principle of the single-open dual-control touch switch controlled by a single-chip microcomputer sold on Taobao? Single-open single-control is simple, but how is single-open ...
The following figure is my relay contact circuit, which uses an RC circuit. I don't know if this will work. My contact is 12V/3A. Please take a look at me. If I use an RC circuit, which capacitor and ...
The company has a 2G DTU. Now it can upload data normally with a 4G mobile phone card, but it cannot upload data with a 4G IoT card. The IoT card has 2G service enabled. Do I need to modify the APN ac...
I am a student of Zhongqian distance learning. Zhongqian is really a scam. At the beginning, everything was good and the teachers had a good attitude. However, later on, this distance learning platfor...
Human body information monitoring is an emerging field. People envision developing wireless electroencephalogram (EEG) monitoring equipment to diagnose epilepsy patients. Wearable wireless EEG can ...[Details]
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]
0 Introduction to the direct method of feedback linearization based on dynamic equilibrium state theory
The basic idea of the direct method of feedback linearization based on dynamic equilib...[Details]
Compared with traditional light sources, light-emitting diodes (LEDs) have many advantages, such as low operating voltage, high energy efficiency, small size and directional light. They can provide...[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]
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]
1 Introduction
The compression (tension) machine is a machine used to test the strength of building materials and certain products. It is divided into two types according to the working mo...[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]
With the increasing application of various nonlinear loads, reactive power and harmonic pollution in the power grid have become a very serious problem. In order to eliminate the pollution caused by...[Details]
0 Introduction
At present, since the testing of photosensitive devices is mostly done manually, not only is the testing efficiency low, but the accuracy of the testing process and the reli...[Details]
Project Background
With the gradual prosperity of the economy, real-time monitoring of scenic area traffic has become increasingly important. Establishing a comprehensive traffic image man...[Details]
High impedance signal measurement such as air quality detection, photoelectric signal detection, accelerometer, piezoelectric sensor and biological signal is easily affected by the input resistance...[Details]
0 Introduction
With the rapid development of economy, people's security awareness is constantly increasing, and video detection systems are increasingly widely used in all walks of life. N...[Details]
Embedded System
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