Engineers who choose to design a wireless IoT application from scratch will quickly realize that the task is difficult. First, building an IoT network system from scratch requires knowledge of many di...
My 51 development board, SPI reads and writes SD card, and there is a problem when reading the SD card sector data. No data can be read at all, that is, the data is all 0. My initialization process is...
Hello everyone, please help me look at the signal transmission line in the figure below. The transmission distance is about 30m. +-12V is used to power the op amp and other chips on the circuit board ...
From an engineering perspective, we have three methods to interconnect independent digital network video servers to exchange programs and information: 1. Use independent storage physical media such as...
I would like to ask: Without EBOOT, how can I divide my NANDFLASH into two FAT areas? Thank you! My BOOT is compiled with ADS, and the OS is WINCE4.2. How can I divide the FLASH into two FAT drive let...
0 Introduction
With the development of my country's economy, the number of motor vehicles continues to increase. The growth of existing roads and other hardware facilities can no longer meet t...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
Key Points
1. Now, in addition to high-end smartphones and tablets, users also expect to use touch screens in other applications, and they are gradually appearing in cars and instruments.
...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
IntroductionLED
billboards are a kind of information display terminal for the public, which has a wide range of civil and commercial values. However, the information displayed on most LED bil...[Details]
Introduction
Every year, cars are equipped with more complex electronic systems to maximize comfort, safety, and performance while minimizing harmful emissions. According to market resea...[Details]
As the electromagnetic environment in space becomes increasingly complex, the shielded cables used to transmit weak signals in the test system are easily affected by external electromagnetic distur...[Details]
introduction
This paper mainly studies the problem of voltage sag control. For sensitive load equipment with rectifier inverter structure, this paper proposes a DC dynamic voltage restorer (Dy...[Details]
Example of multitasking and resource reuse of programs
There is an electromechanical device with two buttons that control two different parts of the device.
Now the requirement is:
wh...[Details]
This paper mainly studies the parallel current sharing technology of Droop method DC/DC converters, and designs a current sharing converter with parallel output of two DC/DC converters based ...[Details]
Wireless Connectivity
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