The new board is out, and it uses NEC LCD, so the driver needs to be modified. I have encountered a problem. The LCD backlight can be lit, but no matter what data I write to the video memory, the LCD ...
I wonder if you have found that in the process of PCB welding designed by yourself, problems are easy to occur if you don't pay attention. And sometimes you can't find the root cause of the problem af...
ATMEGA16 uses SPI to control rc522. The crystal oscillator of ATMEGA16 is 8M crystal oscillator, and the crystal oscillator of rc522 is 27.120. Please use ATMEGA16 to control rc522 with SPI program wi...
[i=s]This post was last edited by Hot Ximixiu on 2021-6-15 08:51[/i]SPI interface is widely used for board-level communication between different devices, such as extended serial Flash, DAC, LCD, etc. ...
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[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]
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]
Fruit planting is an important part of China's agricultural development, and fruit tree pest control operations are becoming more and more important. At present, the overall level of pesticide applica...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[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]
Currently, high-frequency and high-efficiency DCDC converters are increasingly used in automotive electronic systems.
High switching frequency can use smaller power inductors and output filter...[Details]
1 Introduction
With the development of computer technology and information technology in the world, the global information age has arrived. All countries are formulating their own development p...[Details]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
1 Introduction
In order to cope with the energy crisis and slow down global warming, many countries have begun to pay attention to energy conservation and emission reduction and the de...[Details]
1. Electromagnetic compatibility design
Electromagnetic compatibility refers to the ability of electronic equipment to work in a coordinated and effective manner in various electromagnetic env...[Details]
Modern communication equipment, portable electronic products, laptops, electric vehicles, small satellites, etc. generally use batteries as power sources and are widely used. However, the batteries...[Details]
There are two main ways to measure temperature: one is the traditional contact measurement, and the other is
non-contact measurement represented by
infrared temperature measurement
. Tradit...[Details]
Improving the coordination of material handling and internal transportation between departments in modern factories is an important measure to achieve full automation of production. Traditional mat...[Details]
Embedded System
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