Scrapy can collect data directly through HTTP requests. The scrapy crawler framework does not provide page js rendering services, so we cannot get information, so we need a rendering engine to provide...
[i=s]This post was last edited by qwqwqw2088 on 2021-5-6 08:19[/i]When I first started using desktop computers, I took them apart and looked at the complex motherboards filled with various slots, chip...
[i=s]This post was last edited by wuguangtao on 2020-12-24 08:41[/i] # MSP430F5529 drives 2.2-inch TFT color screen and implements Snake**Snake**, a timeless little game. When I was an undergraduate, ...
1. InterruptionPIE is a peripheral interrupt expansion module, with a total of 96 interrupts after expansion2. Clock28027 series peripheral support3. Watchdog...
[i=s]This post was last edited by donghailao on 2021-11-24 18:04[/i]In order to train students' creative thinking, the teacher gave a thinking question....
A simple square wave signal generator that can adjust the frequency with one button. The LED lights up when the frequency is out of range. The frequency range is 100-1000hz.
#include reg52.hsbit PWMOU...
1 Introduction
Mine hoist is a large-scale lifting mechanical equipment. The motor drives the mechanical equipment to drive the wire rope to pull the container to run in the shaft or on the sl...[Details]
Many audiophiles have a certain understanding of burn-in. After buying new headphones, they will play some common burn-in music to burn them in. Some friends also use burn-in software to effectivel...[Details]
ARM Technology launches new business brand "Core Power" to take the lead in the intelligent computing industry August 26, 2021, Shanghai, China - Arm Technology (China) Co., Ltd. ("Arm Technology...[Details]
Abstract: ISDN, telecommunications, and other systems require a negative current-sense amplifier. This application note describes a method for designing a negative current-sense amplifier. This method...[Details]
I've been working on Atmel's SAM9x25 platform and Linux system for industrial equipment. This is my first time to participate in the development of industrial equipment. When debugging the Atmel SAM9x...[Details]
1. Introduction
Wireless
Sensor
Network WSN (Wireless Sensor Network) is a self-organizing network that achieves a specific task through the collaborative work of a large number of ...[Details]
Why do new forces strive to be "technologically bad"? In the first half of the year, prices in the automobile industry were inflamed, and in the second half of the year, capital poured in, creating...[Details]
On September 16, German BMW Group's Director of Research and Development Weber proposed an innovative key path step to carbon neutrality at the 2021 World New Energy Vehicle Congress: establishing a ...[Details]
0 Introduction
Programmable power supply refers to a power supply whose certain functions or parameters can be controlled by computer software programming. There are many ways to implement...[Details]
With the rapid development of the automobile industry, there are more and more electronic control units on the car body. The traditional car body wiring harness will not only increase the manufactu...[Details]
LONDON (Reuters) - Netflix Inc said on Thursday it would reduce the bit rates of all its streaming services in Europe, effectively cutting traffic on its European network by 25%, in an effort to keep...[Details]
"This year is the starting year for the construction of ubiquitous power Internet of Things. Now there are less than three months left until the end of the year. The whole company must make greater...[Details]
A team from the Massachusetts Institute of Technology has made an important breakthrough in the field of electronic manufacturing: they used full 3D printing technology to produce active electronic...[Details]
Programming Basics
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