I have made various contactless smart card modules. Whenever a new device comes out, I want to try to make a card reader. I have made stm32f103+rc522 before, and this time I plan to try STM32L011+rc52...
The foundation of special light sources, color display and other industries is the restoration and transmission of color, which belongs to the category of light source photometry and colorimetry in th...
This article comes from: [url=http://www.hellodsp.com/bbs/viewthread.php?tid=574&extra=page%3D1]http://www.hellodsp.com/bbs/viewthread.php?tid=574&extra=page%3D1[/url] Let's start with the simplest on...
After executing the command MOV #1234H,&TXBUF0,is the data in TXBUF0 12H or 34H? Or is it not executed at all? Because TXBUF can only receive 8 bits.If 1234H is sent to &200H or &201H, I know what the...
Maybe... this program is not quite right... I modified it according to the "Incomplete Manual" and I always feel that the program is not quite right... I haven't calmed down to look at AD these days. ...
September 23, 2010 - Former US President Ronald Reagan was fond of using the above phrase when expressing his views on international arms control issues. It also fit the phrase well at last week's con...
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
System design is a complex process. It is not enough to just use ICs. There are many details to consider. This article uses a high-fidelity music playback system as an example to introduce how to s...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
In the "digital pressure measurement" experimental device of applied physics, the subject technical knowledge of analog circuits, digital circuits, sensors and single-chip microcomputers is used. In o...[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]
People who often surf the Internet until late at night, their families always complain that turning on the big lights in the living room affects their rest, but some people don't have keyboard ligh...[Details]
At present, with the diversification of portable products and the almost harsh requirements for audio and video parts, the power consumption requirements of the whole machine have been raised to a ...[Details]
Multimedia processors are often the most power-hungry devices in portable electronic devices. Common ways to reduce CPU power requirements are to reduce clock frequency or operating voltage, but th...[Details]