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brief introduction HardwareSerial library is a serial driver library written in c + + and applied to esp32 Arduino application environment. After installing the Arduino development environment of ESP32, we have integrated this serial operation library, which can be directly referenced in practical application. Note: ESP32 has three UART ports ...

Full steps of Douban movie big data project 1. Douban reptile: When I started to write Douban TV series crawler, I thought it was very simple, but in practice, there was an IP sealing situation, which led to my distress for a long time, and now I finally wrote it No more nonsense, just go to the code: The run function is ...

The same thinking field. A. Average Height Give an array and ask to rearrange its elements to meet a i + a i ...

although Docker It has been very powerful, but there are still many inconveniences in practical use, such as cluster management, resource scheduling, file management and so on. In this era of containers, many solutions have emerged, such as Mesos, Swarm, Kubernetes and so on, among which Google is open source Kubernetes As a big brother. kub ...

The content shared in this article comes from the book "learning OpenCV 4: Python based algorithm practice", which is as follows: Chapter 1 OpenCV Quick start; Chapter 2 image reading and writing module imgcodecs； Chapter 3 core library module core； Chapter 4 image processing module imgproc(1) (a); Chapter 5 image processing module ...

A clear introduction to the basic usage of setuptools MANIFEST. Official explanation of in documents Root directory setup py, MANIFEST. in, README. You don't need to specify what to add to the package automatically. python setup.py clean --all clear the intermediate results of previous compilation (that is, the build directory). If not, modify ...

preface The main goal is to crawl the fan data of the specified users on Github and conduct a wave of simple visual analysis of the crawled data. Let's start happily~ development tool Python version: 3.6.4 Related modules: bs4 module; requests module; argparse module; Pyecarts module; And some python built-in modules. Environment co ...

Write in front🛫 For more information, see SpringBoot 2 column 🚕 This article summarizes the video of Raytheon in Silicon Valley 🚒 Bloggers are still learning this knowledge 🚄 If you find any problems, please point them out 🚀🚀Zhawatai zaogao's blog home page🚀🚀 1 configuration file    as mentioned before, configuration f ...

Updating entities using spring data JPA SpringDataJPA has a built-in save method to save and update the entity content. If there is a primary key value, the row information of the corresponding primary key will be updated. On the contrary, a new information will be added, which is similar to the saveOrUpdate method of Hibernate. Let's create a ...

There are two main solutions to the shortest path algorithm: 1. Dijestra algorithm for single source: One point to all points. The main feature is to take the starting point as the center and expand outward layer by layer until it reaches the end point. Dijkstra algorithm is very useful Representative shortest path algorithm Algorithm details: ...