[size=4][color=#000000][backcolor=white] In the process of using audio equipment, due to factors such as oxygen, water, light, and heat in the air, the equipment will inevitably age. After the audio e...
I bought "Advanced Programming in the UNIX Environment" and am reading it. I am now at Chapter 8, 8.14 Process Accounting, page 215. I downloaded the source code. The problem I am facing now is that w...
Many sensor evaluation boards provided by manufacturers integrate MCU. Whether it is TI's CC2540/CC2650 or ST's SensorTile, the onboard sensors are directly connected to the MCU. Without the lead-out ...
I want to use ADC0804 and 89C52 to make a digital voltmeter, but I don't know how to convert the data collected from ADC0804 into decimal data and then send it to the digital tube for display. What is...
My system platform is PXA270+WINCE5.0. Now I want to use DS2784 to read the power. This DS2784 uses 1 wire bus. I have never used it before. How can I use it to read the power? Has anyone used it befo...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[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]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[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]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
For a long time, my country has implemented "community-style collective heating" for hot water heating, and settled accounts based on the heating area, regardless of whether the user uses heat. Thi...[Details]
During the global semiconductor industry recession, the automotive electronics market has performed strongly, especially the application of car remote control systems has become more and more wides...[Details]
1 Features
1.1 Single cell operating voltage up to 3.7V
It is three times that of nickel-cadmium batteries and nickel-metal hydride batteries, and nearly twice that of lead-acid batteries...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
Many industrial fields such as industrial automation, logistics, and smart grids require that machinery and products be safe and have passed functional safety certification. When developing machine...[Details]