Raspberry Pi (Raspberry Pi) is produced in the UK. Raspberry Pi is a credit card size computer, and the price is very cheap, there are two models, type A and type B.
A type has 256M memory, a USB interface, no network cable socket, B is an upgraded version, 512M memory, 2 USB ports, there is a network cable socket.
Although this small, but the Raspberry Pi can be used to do a lot of things, is the veritable "though small, spite"
The Raspberry Pi can install Linux system, can download variou
Configure command looks similar:
./configure-release
-opengl es2
-device linux-rasp-pi2-g++-device-option cross_compile=
$TOOLCHAIN/ arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin/arm-linux-gnueabihf-
-sysroot $ROOTFS
-prefix/ Usr/local/qt5
The most important parameters are-device and-sysroot. The included files and libraries that are used by the specified-sysroot,configure c
First, the LNMP download
LNMP One-click installation package is a Linux shell can be written for Centos/radhat/fedora, Debian/ubuntu/raspbian/deepin VPS or stand-alone host installation LNMP (nginx/mysql/php) , Lnmpa (Nginx/mysql/php/apache), LAMP (apache/mysql/php) shell program for the production environment. At the same time provide a number of practical auxiliary tools such as: Virtual Host management, FTP user management, Nginx, MYSQL/MARIADB, P
Raspberry Pi 3 Study notes (3): Chinese environment setting and input Method installation
If you are installing a Raspbian system, for friends who are not accustomed to English, you need to set up Chinese and install the corresponding Chinese input method, if you install Ubuntu mate, you do not need to set up Chinese, because Ubuntu Mate will allow you to select the appropriate language to use when you install.
1, update the terminal, enter the foll
. The receiver uses timestamps to calculate delay and delay jitter, and to synchronize control. Synchronization source (SSRC) Identifier: 32 bits, used to identify the synchronization source. The identifier is randomly selected, and the two simultaneous sources participating in the same video conference cannot have the same ssrc. Special Source (CSRC) identifiers: Each CSRC identifier occupies 32 bits and can have 0~15. Each CSRC identifies all the special sources that are included in the payloa
Tags: User system resources Direct admin Drive Virtual Mobile version strong access One The first thing to explain is what LNMP,LNMP originated from Lamp,lamp is the abbreviation for Linux+apache+mysql/mariadb+perl/php/python, which replaces the Web server's Apache with less resource consumption, More stable Nginx, so LNMP is the abbreviation of Linux+nginx+mysql/mariadb+perl/php/python; Refer to the introduction of LNMP one-click installation package website for a brief introduction, why Choose
Tags: cmd number DMI environment System www SSI User Install MySQLRaspberry Pi Model: 3b+ System Environment: 2017-04-10-raspbian-jessie First update the sourceBASICsudo apt-get update Installing Apache2BASICsudo apt-get install apache2 Install MySQLBASICsudo apt-get install mysql-server An interface will appear during installation to set the root password of the database. Confirm the password again. Installing the MySQL plugin for PHP and PHPBashsu
outdated, it will still be very small system instability, so Debian is undoubtedly the programmer's ideal operating system.The Debian website has a rich product guide that contains a programming chapter that documents how to create and compile scripts and how to use autoconf to make your scripts compile on other Linux distributions.Debian (https://www.debian.org/) >>3. RaspbianRaspbian is the default operating system installed on the Raspberry Pi. As an educational tool designed in PI,
system selection page, select Raspbian.
After installation is complete, press shift to automatically restart to enter the raspi-config interface.
On the configuration page, enable SSH overclocking and so on. finish and restart.
Install a test frequency: sudo apt-get install cpufrequtils
Cpufreq-info-h
In general, B + is quite good.To be continued ...................................... .. the highlights will be presented later ..................
NOOBS-Multi-operating system installer, can be different support Raspberry Pi of the popular operating system installed in an SD card and provide a boot management tool, the installation of different operating systems independent, non-impact, is a more interesting way to play.From version 1.3.1 to 1.3.9,noobs are available for offline multi-os inclusion, but the remaining versions do not support this feature, the most recent 1.9.1, for example, the offline installation package contains only
When cross-compiling, usually prepare mkspec, refer to: Http://wiki.qt.io/Building_Qt_for_Embedded_LinuxMkspec consists of two files:
Qmake.conf-this is a list of qmake variable assignments this tells Qmake what flags to pass through to the compiler, whic h compiler to use etc.
Qplatformdefs.h-this is a header file with various platform-specific #includes and #defines. Often This just refers to a existing Qplatformdefs.h file from another generic Mkspec.
Reference http://doc.qt.io/qt-
turn off two Raspberry Pi in turn to check whether the redundant system is still usable.
Now I have this tested storage system. What I want to do is to make this system into a fault-tolerant Web server cluster. Raspberry Pi's CPU processing speed and memory resources are not very high. Fortunately, it is more than enough to deal with a static Web server. I deliberately made this example very simple, because I think if you can flat this simple example, you can also deal with complicated problems
Excerpt from: http://www.phodal.com/blog/user-csharp-develop-raspberry-pi-application/Raspberry Pi C#mono Linux
Mono is a free open source project hosted by Xamarin Corporation (formerly Novell, First Ximian). The goal of the project is to create a series of. NET tools that conform to the ECMA standard (Ecma-334 and Ecma-335), including the C # compiler and the common language architecture.
Other
The mono virtual machine contains a real-time compilation engine that can be us
-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin at the end of the file3 $ source. bashrc
Step 4. Check whether the installation is successful
Way1:
$ Arm # dual tab
Show the following content
Way2:
$ Arm-linux-gnueabihf-gcc-v# Display correct information
$ Arm-linux-gnueabihf-g ++-v# Display correct information
NOTE: If arm-linux-gnueabihf-XXX cannot be found during cross-compilation, check whether arm-linux-gnueabihf-XXX-v can output the cor
browser, it is naturally necessary for MSF.
0 × 02 tool preparation
EDUP mini USB wireless NIC Driver-free (RTL8188CUS)
Raspberry Pi. The system image is Raspbian.
The team's Summer suggested that I use the TP-Link TL-WR703N to fl an openWRT, Which is portable and can implement many other features.
This idea has not been tried yet. After openWRT is flushed into the route, there is no space for the route to install other things.
0 × 03 modify Raspberr
need a Raspberry Pi, as well as an Ethernet or wireless adapter (Ethernet preferred). It is important to note that Openhab also runs on older Raspberry Pi, but there is a problem with slow processing and the use of z-wave devices. You need to upgrade to the latest version of the Raspberry Pi and add z-wave. However, without the need for z-wave, you can safely ignore the problem and use Raspberry Pi B or C + to make it, as they can also work.The latest stable version of Openhab is the 1.71 relea
Download Raspbian system image on official website, write TF card with Win32diskimagerImage File Select System image, Device select TF card Letter, write. So the system is ready to write. Insert the memory card into the Raspberry Pi and turn it on.Connect the DHCP router via a network cable , then view the IP address of the Raspberry Pi on the router and connect the IP of the Raspberry Pi with Putty SSH. The default account for the Raspberry Pi is r
A Raspberry Pi configuration2 Raspberry Pi (raspberry) enable root accountThe Linux used by the Raspberry Pi is the Debian system, so the Raspberry Pi enable root and Debian are the same. The root account in Debian does not have a default password, but the account is locked.When Root is required, the default account is executed via sudo, and the Raspbian Default user in the Raspberry Pi system is the pi password of Raspberry.Re-open the root account,
1. Change the password of pi account[Plain]View PlainCopyprint?
Password pi
2. Open the root accountThe Linux used by the Raspberry Pi is the Debian system, so the Raspberry Pi enable root and Debian are the same.The root account in Debian does not have a default password, but the account is locked.When root privileges are required, the default account is executed via sudo, and the Raspbian in the Raspberry pi systemThe default user is
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.