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The boot loader of an embedded system is composed of the Boot Loader and the Boot code (optional) solidified in the firmware. Its role and function are like a ROM chip program BIOS (basIC input...[Details]
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Looking at the materials in the drawer, I wanted to make something for fun. I originally wanted to make a 99-meter meter, but there were not enough key switches, so I changed it to a clock. Without f...[Details]
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According to Reuters, three people familiar with the matter said that the Canadian government may delay its decision on whether to use Huawei equipment to build 5G networks before the Canadian federa...[Details]
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According to MacRumors, the entire iPhone 15 series is equipped with a USB-C interface as standard. In terms of the USB protocol that determines the transmission rate, the iPhone 15 Pro will support ...[Details]
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On March 7, Visionox issued an announcement stating that the company's controlling shareholder, Tibet Zhihe, signed the "Equity Transfer Framework Agreement" with Jianshu Investment on March 5, 2021....[Details]
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According to MacRumors today, two weeks after the release of watchOS 7.4 Developer Preview Beta 2, Apple today pushed watchOS 7.4 Developer Preview Beta 3. WatchOS 7.4 introduced the "Time to Walk" f...[Details]
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Discussion on LED driver selection
1. LED driver IC features and selection
Netizen question: Does LED driver have to use dedicated LED driver IC? What are the advantages and disadvantages...[Details]
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Abstract: In view of the need for efficient, low-pollution green power design, a highly reliable, easy-to-maintain, fully functional, and compact power monitoring system is very necessary. This pap...[Details]
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Today's laptops are becoming ultra-thin, and the biggest design challenge this design trend brings to system engineers is the ultra-thin power adapter. How to design a power supply that can be ins...[Details]
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Based on the wide range and high accuracy, the PX110 and PX120 are widely used in college teaching and vocational teaching practices, such as installers and industrial maintenance teams. More precise...[Details]
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#include"reg51.h"
#define uchar unsigned char
#define uint unsigned int
sbit LED=P3^6;
//delay for 1ms
void delay1ms(uint t)
{
uint i;
uchar j;
for(i=0;i t;i++)
for(j=0;j 120;j+...[Details]
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In industrial control, in order to ensure the reliable operation of the system, it is necessary to detect the surrounding environmental variables (such as temperature, air pressure, humidity, etc.). T...[Details]
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In view of the fact that a single ordinary type of fire detection alarm can no longer meet the demand, the use of multiple sensors to comprehensively collect various abnormal information before a f...[Details]
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1. What is the junction temperature of LED?
The basic structure of LED is a semiconductor P-N junction. Experiments show that when current flows through the LED element, the temperature of th...[Details]
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CNC (Computer Numerical Control) system is an automatic control system widely used in industrial production. It uses computers to accurately control machine tools and achieve high-precision process...[Details]
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