stm32 serial port custom protocol receives a string of hexadecimal data (convert two bytes into decimal data) + some basic knowledge of serial port

1, Basic storage unit bit: A digit in a binary number, which can be 0 or 1. It is the smallest unit of data in a computer. Byte s: The basic unit of data in a computer. Every 8 bits form a byte. All kinds of information need at least one byte to be stored and processed in the computer. For example, an ASCII code is represented by one byt ...

Posted by soloslinger on Tue, 04 Jan 2022 22:58:52 +0100

HTTPS configuration for personal websites

I brief introduction In fact, I didn't want to write this, but after the domain name was filed yesterday, I configured https for a long time. It's really urgent. There are so many cheating tutorials on csdn. I've taken a lot of detours. While I still remember now, I'll record it. It may also be used later. After writing this article, I'll be r ...

Posted by trippyd on Mon, 03 Jan 2022 23:52:59 +0100

Alicloud server installs code server to realize ipad programming and browser programming

preface What is code server Code server is a Visual Studio Code instance running on a remote server, which can be accessed through any web browser. It allows you to code with a consistent integrated development environment (IDE) anywhere and on any device, such as a tablet or laptop. As long as you deploy the code server on your own serve ...

Posted by jennifer_ann on Sun, 26 Dec 2021 21:12:06 +0100

Create a custom image using Packer

This article comes from Alibaba cloud official mirror: Alibaba open source mirror - OPSX mirror - Alibaba cloud developer community ] Original link: Create a custom image using Packer - alicloud developer community background information This article describes taking the server of Linux system as an example. For the operation of Windows sys ...

Posted by Willburt on Sun, 26 Dec 2021 16:40:17 +0100

CMake practice 2: multiple source files, the same or multiple directories

title: CMake practice 2: multiple source files, the same or multiple directoriescategories: [actual combat II]tags:[CMake]date: 2021/12/23Author: hackettWeChat official account: overtime ape1. Multiple source files in the same directoryCMake has only a single source file. Now write the add function to mymath In the source file of CPP, put the d ...

Posted by s_ainley87 on Sat, 25 Dec 2021 02:22:04 +0100

CMake practice 4: install, test and add environment to generate installation package

title: CMake Practice IV: install, test and add environment to generate installation packagecategories: [actual combat iv]tags:[CMake]date: 2021/12/24Author: hackettWeChat official account: overtime ape1. Installation testCMake can also specify installation rules and add tests. These two functions can be performed by using make install and make ...

Posted by mr_hacker on Fri, 24 Dec 2021 17:44:41 +0100

[alicloud image] install and compile the Apache environment

[alicloud image] install and compile the Apache environment1, Reference linkAlibaba open source mirror - OPSX mirror - Alibaba cloud developer community (aliyun.com)apache image - apache download address - apache installation tutorial - Alibaba open source image station (aliyun.com)Apache (Web server software) Baidu Encyclopedia (baidu.com)Comp ...

Posted by vipul73 on Thu, 23 Dec 2021 05:17:53 +0100

Nginx learning - nginx seven layer load balancing (will you not see it yet?)

Load balancing is divided into four layers of load balancing and seven layers of load balancing The so-called four layer load balancing refers to the transport layer in the OSI reference model, which is mainly based on ip + port load balancing Realize four layer load balancing: Hardware: F5,BIG-IP,EADWARE Software: lvs,nginx,hayproxy The so-c ...

Posted by shan111 on Wed, 22 Dec 2021 20:16:19 +0100

[Alibaba cloud image] use Alibaba cloud openssh image to install and configure SSH services

Article catalog ๐Ÿ“ 1, Reference link ๐Ÿ”Š2, Introduction to OpenSSH ๐Ÿ†3, OpenSSH installation operation ๐ŸŽˆ 1. Clear cache and update YUM source ๐Ÿฅ‡2. View the original SSH version information and uninstall ๐Ÿ”Ž3. Download the OpenSSH image package locally and upload it to the Linux system ๐Ÿ“บ4. Use the wget command to download the ...

Posted by keystroke on Mon, 20 Dec 2021 19:19:10 +0100

Build a Hadoop cluster using three alicloud servers (collection of cloud computing experiments)

It's silly to use Alibaba cloud server to set up this hadoop cluster, which wastes me nearly a week. 1. Preparation Prepare three alicloud servers Namenode121.196.224.191Datanode1121.196.226.12Datanode247.96.42.166 Port setting (pit behind) Namenode Open 9000 ports manually through security groups View the private ip address of the Namenode ...

Posted by mort on Wed, 15 Dec 2021 18:59:18 +0100