swprintf(filename, L"/Storage Card/1204151210050%03d.bin", (writeNum - 1) ); _tprintf( _T("save data file name = %s, len = %d"), filename, wcslen(filename)); Where writeNum is 10, but the value of fil...
On the PDA side: BOOL CTest1evcDlg::ProcessCOMMNotification (UINT wParam,long lParam) { if(!m_bConnected) return FALSE; //Judge whether the received message is a read buffer if((EV_RXCHAR&wParam)!=EV_...
The SENSIRION SHT45 high-precision humidity and temperature sensor offers higher accuracy, is packaged in tape and reel, and is suitable for standard SMD assembly processes. The device is built on a n...
In the field of wireless communication, there is no technical parameter called "distance". You will find that the distance given by the manufacturer will be added with a theoretical value. This theore...
This ultrasonic sensor open source project provides a good hands-on platform for college students and related practitioners, allowing everyone to personally participate in the development process of a...
The circuit shown in the figure is a three-digit tachometer used to measure low frequency signals with a repetitive time interval of 0.235 to 15 seconds. The tachometer has a speed range of 4 to 255 r...[Details]
With the rapid development of computer technology, embedded image systems are widely used in office equipment, manufacturing and process design, medical, monitoring, sanitary equipment, transportat...[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]
Over the past 15 to 20 years, automotive power MOSFETs have evolved from an initial technical topic to a thriving commercial sector. Power MOSFETs were chosen because they can withstand transient ...[Details]
Third generation (3G) mobile phones offer a variety of features with more functionality. As consumers enjoy the latest and better features of these communication devices, they continue to demand lo...[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 most common flight state of a fixed-wing aircraft is horizontal flight. If it is allowed to fly at a large angle, the action cannot be maintained all the time. If it is al...[Details]
At present, the IEEE802.11 wireless LAN standard is widely used in voice communication, wireless office and other fields, but it is still mainly limited to wireless communication on general platfor...[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]
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]
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]
With the continuous development of digital television, the demand for high-definition is imperative. H.264, as a new generation of compression standard, has a more complete algorithm than MPEG-2, ...[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]
"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]
Embedded System
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