Being unemployed at home, I'm going to tinker with the legendary ultrasonic wave and the 5110 mobile phone display screen to display the temperature and the measured distance.
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[font=Tahoma, Helvetica, SimSun, sans-serif]We are looking for someone to design and make a radio frequency circuit board. The requirements are not high. It only needs a single chip microcomputer or F...
I just came into contact with 430 a few days ago. I am a novice. Then I wanted to go through each module again. I had a general idea in my mind, and then wrote a program: as follows #includevoid main(...
The following problem occurs when compiling the program with iar Error[e46]: Undefined external "sensors" referred in sensors ( E:\创建文件夹\ contiki-2.6\Debug\Obj\sensors.r43 ) Error[e46]: Undefined exte...
1. Electrical Testing During the production process of PCB boards, it is inevitable that short circuits, open circuits, leakage and other electrical defects will occur due to external factors. In addi...
[font=Times New Roman] [/font] [font=宋体]Share Online shoppers who are used to comparing prices online can also easily compare online and offline prices in physical stores. [/font] [font=Times New Roma...
UHF and HF are both general technology categories, but each category has independent supporting protocols. HF is more consistent in the 13.56MHz frequency band, although there are many internation...[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]
This article discusses how to use an ultra-low-power RF transceiver chip from Zarlink Semiconductor for pacemakers, neurostimulators, drug pumps, and other such implantable medical devices t...[Details]
WiMax technology needs to demonstrate its advantages in specific application scenarios in order to gain market recognition, which requires application testing to measure system performance para...[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]
Preface
In recent years, many compact portable electronic products have been developed, such as mobile phones, digital cameras, MP3, MP4, PDA, GPS and DVD, etc. They are not only small in size...[Details]
In the issue of ensuring the safety of drivers and pedestrians, the proportion of electronic technology has increased. According to the survey, 80% to 90% of traffic accidents are caused by driver...[Details]
1 Introduction
Generally, when transmitting information over short distances through electrical signals, baseband signals can be directly transmitted. However, over long distances, baseban...[Details]
With the improvement of people's requirements for vehicle riding comfort and the development of passenger car suspension technology in my country, air suspension is increasingly used in passenger ...[Details]
FSK (Frequeney-Shift Keying) uses carriers of different frequencies to transmit digital signals. FSK signals have the advantages of strong anti-interference ability and long transmission distance, and...[Details]
Mesh network architecture and advantages
The Internet is a flat network. The routers that make up the Internet are on the same plane. The mesh network formed by multiple paths between ...[Details]
0 Introduction
Electric vehicles are high-tech products that integrate computer technology, communication technology, electronic technology, and new material technology. They have a complex ...[Details]
The third generation iPhone, iPhone 3G S, has finally been released. Let's take a look at the differences in basic parameters between it and the previous generation iPhone 3G.
According to for...[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]