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The DC motor speed control system has the following function buttons: forward P2^3 output PWM P2^4 is 1 reverse P2^4 output PWM P2^3 is 1 PWM duty cycle +1 start/pause The DC motor speed control sim...[Details]
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root@cnicfhnui-VirtualBox:/S3C2440/u-boot-2015.04# make menuconfig
HOSTCC scripts/kconfig/mconf.o
In file included from scripts/kconfig/mconf.c:23:0:
scripts/kconfig/lxdialog/dialog.h:38:20: f...[Details]
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introduction
One approach to driving high-brightness LEDs is to modify the standard boost converter topology to drive a constant current through the load. However, this implementation pres...[Details]
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The MAX19505's analog inputs accept a wide input common-mode voltage range of 0.4V to 1.4V, allowing a wide range of RF, IF, and baseband front ends to be DC-coupled to the inputs. The MAX19505 has...[Details]
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LED
生产过程中，所使用的环氧树脂(Epoxy)，是LED产业链制作产品的重点材料之一。环氧树脂是泛指分子中，含有2个或2个以上环氧基团的，有机高分子化合物，除个别外，它们的相对分子品质都不高。环氧树脂的分子结构，是以分子链中含有活泼的环氧基团为其特徵，环氧基团可以位于分子链的末端、中间或成环状结构。由于分子结构中含有活泼的环氧基团，使它们可与多种类型的固化剂，发生交联反应而形成...[Details]
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introduction
In view of the widespread application of LED dot matrix display screens and the advantages of GPRS network nationwide coverage, a wireless LED display screen control system soluti...[Details]
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The power standing wave meter is one of the necessary instruments for most HAMs. In addition to purchasing products from regular manufacturers, you can also make your own. The DIY standing wave meter ...[Details]
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This program is a small entry-level program, equivalent to hello world in C language! I hope it will be helpful to you. I try to write this program as simple as possible! The program is written usi...[Details]
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In the previous article, we talked about some basic knowledge of brushless motors, including the internal structure and driving principle of brushless motors. We know that we can make the motor rot...[Details]
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1. What are the main types of loading effects of oscilloscope probes? What methods can be used to reduce these loading effects and thus reduce the impact on signal measurement? (See technical article
...[Details]
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According to IT Home on March 22, the Samsung Galaxy M53 5G mobile phone was exposed and will be equipped with the Dimensity 900 processor. According to the data released by the whistleblower Yogesh ...[Details]
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A few phones, including Pixel and Essential, have already been upgraded to Android 10. In addition to many new features and functions, including gestures, foreign media have also found some interesti...[Details]
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Introduction to microcontroller classification:
51 series microcontroller
51 series microcontrollers
The first one was launched by Intel, mainly including 8031 se...[Details]
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89C52 controls MAX7219 to drive digital tubes, providing source code, schematic diagram, welding diagram, etc. Links are at the end of the article. Schematic Source code max7219.h /***********...[Details]
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We always talk about 8051, 8031, and now there is 89C51 and 89s51. What is the relationship between them? MCS51 refers to the general name of a series of single- chip microcomputers produced by th...[Details]
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