[align=left][color=#000000][b]Circuit Description[/b][/color][/align][align=left][font=Times New Roman][color=#000000] [/color][/font][/align][align=left][color=#000000]In the circuit, [font=Times New...
Recently I found a chip called w7500 developed by a Korean company called wiznet. It is a cortex-m0 microcontroller with "hardware TCP/IP". It looks like a cool chip. I am a little excited because it ...
SMS is one of the main value-added services of PHS. It is increasingly recognized and loved by the majority of PHS users and shows a good development trend in the market. However, the rapid developmen...
[i=s] This post was last edited by xiaowanzi111 on 2018-3-6 09:26 [/i] [align=left][font=新宋体][size=3][b]Recruiting unit: [/b] Institute of Metal Research, Chinese Academy of Sciences [/size][/font][co...
I made a small system that controls LCD information with buttons. It works very well during simulation, but it doesn't work when the download line is removed. I don't understand why...PS: The four but...
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[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]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
In the past 20 years, although the inverters that use power transistors (GTR) as inverter power devices, 8-bit microprocessors as control cores, and realize asynchronous motor speed regulation acco...[Details]
(1) Open circuit voltage of the battery
(2) Internal resistance of the battery
(3) Battery operating voltage
(4) Charging voltage
Charging voltage refers to the voltage applied ...[Details]
Automotive electronics are in a noisy environment
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so automotive electronics must have excellent electromagnetic compatibility (EMC) performance. The most important part of automotive elec...[Details]
IP STB interactive services that are constantly updated
The interactive digital content services that can be provided through the television system include television on demand (Vo...[Details]