The product uses an 8.4V lithium battery, which has three metal spring contacts, similar to the battery contact method on a mobile phone. The current circuit has two 220UF/16V tantalum capacitors in p...
In recent days, when I opened my phone, I was flooded with news about iPhoneX. Yesterday, a video of a foreigner unboxing the phone was leaked online. I didn't expect that although the nearly 10,000 y...
How to burn the program written by ads into the nandflash of arm2440! Help! I have a compiled ads program of 2MB in size. It runs fine in SDRAM. Now I want to burn it into the chip, but it can't burn ...
How to understand embedded systems ◆Embedded systems are user-oriented, product-oriented, and application-oriented. They must be combined with specific applications to be vital and have more advantage...
There is no problem in compiling, but it does not display. I am a novice, please help me. The program is as follows: //lcdportconfig.h #ifndef _LCDPORT_CONFIG_ #define _LCDPORT_CONFIG_ #include
//Hard...
Why do we need to debounce buttons?Key debounce The switch used for the common keys is a mechanical elastic switch. When the mechanical contacts are opened and closed, due to the elastic effect of the...
introduction
1 The significance of using RTOS on MSP430
It is understandable that it is meaningless to use RTOS on MSP430. Because the hardware resources of MSP430 are limited (for exampl...[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]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[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]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
In recent years, with the rapid development of the information industry, dot matrix LED display screens have been widely used in various advertising and information display systems such as the fina...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
Today, the value of electronic components in cars accounts for 15-20% of the total vehicle. In the future, this proportion may be as high as 30-40% as more safety electronics, fuel consumption and ...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[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]
Analog electronics
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