This is a drawing of a single power supply circuit. When dual power supply is used, the ground is generally changed to a negative power supply. I have never understood its specific function. Please he...
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. ...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
1 Introduction
With the acceleration of the pace of urban modernization, society has higher requirements for urban road lighting and urban lighting projects. The state has clearly required tha...[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]
This week, Microsoft held its 2012 Microsoft Worldwide Partner Conference (WPC) in Toronto, Canada. At the conference, Microsoft showed its new products and services to partners around the world. A...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[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]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
HL201A is a special thick film driver integrated circuit with a capacity of less than 75AGTR developed by Xi'an Power Electronics Technology Research Institute. The article explains the pin arrange...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
Infrared remote control is widely used in home appliances, but the remote controls produced are not compatible with each other. The universal remote controls commonly seen on the market can only co...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[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]