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Code: #include reg52.h #define uchar unsigned char #define uint unsigned int sbit LED = P1^0; void DelayMS(uint x) { flying i; while(x--) { for(i=120;i 0;i--); } } void main() { ...[Details]
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Huawei Mate 40 Pro went on sale yesterday, with a starting price of 6499 yuan. Early this morning, a digital blogger on Weibo released a picture of a netizen's first broken Huawei Mate 40 Pro. No mor...[Details]
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#include
#include "derivative.h"
#define B PORTA_PA0 //Data serial input clock
#define C PORTA_PA2 //Data output clock
#define D PORTA_PA4 //74LS138 e...[Details]
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The development direction of power supply can be summarized into three aspects: first, miniaturization; second, high efficiency and high reliability; third, intelligence or digitization. Among them...[Details]
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When using the serial port of the STC51 microcontroller, sometimes a very strange situation occurs, that is, the program runs dead as soon as it enters. The initialization code is as follows: void ...[Details]
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The latest sales data show that in 2019, Daimler's Mercedes-Benz and Smart brands exceeded the 700,000 vehicle mark in China for the first time. Even though the Chinese market is in a downward phase,...[Details]
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TVS for AC circuits
Figure 2-1 is an application of a bidirectional TVS in an AC circuit, which can effectively suppress the overload pulse brought by the power grid, thereby protecting...[Details]
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From March 9, 2020 to April 26, 2020, researchers from Unit 42, the threat intelligence team at Palo Alto Networks, analyzed 1.2 million newly registered domain names (NRDs) containing keywords relat...[Details]
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Scan line, there is nothing on the screen. For digital oscilloscopes, you will not see waveform updates. If you don't understand this, you will often think that the signal is not connected or some ot...[Details]
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The 2020 Radar Industry Trends Report: Manufacturers, Applications and Technology Trends released by Yole pointed out that by 2025, the automotive market is expected to grow at a CAGR of 11%, because...[Details]
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This video uses animation to explain the concepts of oscilloscope triggering, storage depth, sampling rate, etc. Although this video is not perfect, for example, when it first talks about triggering,...[Details]
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Working principle of series motor speed regulation
The principle of series motor speed regulation can be explained in the following steps:
1. Change the excitation current: By changing th...[Details]
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IU8689+IU5706 Mono 100W/Stereo 60W Synchronous Boost + Amplifier IC High Power Trolley Speaker Application Combination Solution
introduction
At present, medium and hig...[Details]
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According to foreign media reports, hundreds of people die every year in the United States due to fatigue driving. According to data from the National Highway Traffic Safety Administration , from 201...[Details]
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Cars are becoming more and more popular, and have been chosen by more and more families as their means of transportation. Driving safety has attracted widespread attention from the society. Wheneve...[Details]