[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:00[/i]With the rapid development of optical fiber sensing technology and optical fiber communication technology, optoelectronic technol...
[align=center]?[img]http://www.yumen.com/attachment/200901/9/450_1231504464lfud.jpg[/img][/align] In the Fuhai Scenic Area at Chengshantou, Rongcheng, there is a large area of ancient buildings magica...
1. In the clock circuit, the crystal oscillator generates oscillations when it is powered on, and the capacitor filters and has consistent capacitance to ensure the identity of the signal. Is this rig...
Ladies and gentlemen, if I build a mesh network, there is a coordinator and N terminals; the purpose is to send the information of the terminal to the coordinator, and the coordinator will send this i...
Dear experts: I am debugging a serial communication module. The problem is that the voltage level of 8962 is 3.3V, and the device I am using is 5V. I would like to ask how to connect the two to solve ...
Is there any expert who can give me some advice: I use the emulator to burn the program into the msp430f149 microcontroller. Where is the program placed? If I read and write the Flash, will I accident...
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
FPGAs are used in 81% of electronic systems, including many commercial and defense products, and most FPGAs use BGA packaging. The BGA packaging is characterized by small solder balls and small sol...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[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]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
Introduction
In industrial control, speed measurement is often required. Generally, a contact tachometer is used. This tachometer must be placed against the center of the shaft to measure. It...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[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]
If a car stereo could play multiple CDs, then such an in-car entertainment system was an advanced system configuration. Today's in-car infotainment systems are complex embedded subsystems that combine...[Details]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
System Block Diagram
The system uses DSP56F826 chip as the core control module and CMOS digital image sensor chip. The image acquisition resolution can reach 640×480 pixels. When high-re...[Details]
Mobile and portable
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