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Okay, I'll admit it. This is the first example of learning from a book.I started the raspberry Red version, version 2, see such a small card computer can do so many things, it is really surprising!installation system, etc. are very smooth, start, installation program, Remote Desktop, SSH login, etc. are very smooth, is installed XBMC not, various versions are not, start up after the operation will hang off, do not know what is the reason, power supply
-zenheiWill install Wenquanyi Zen Hei open-source Chinese font, here to Wenquanyi Zen Hei salute, it seems that it is the only open source Chinese font library. Guo Jia had the money to build a Confucius Institute, but never had the money to do a more complete open source Chinese font.Chinese can be displayed, input it? Linux has long been, called SCIM (Smart Common input Method), so just enter:sudo apt-get install Scim-pinyinwill be installed pinyin
/fat32mount /dev/sdb2 /mnt/ext4
Installation Module
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=/mnt/ext4 modules_install
Copy the kernel and drive to the SD card
# Back up the original KERNEL cp/mnt/fat32/$ KERNEL. img/mnt/fat32/$ KERNEL-backup.imgscripts/mkknlimg arch/arm/boot/zImage mnt/fat32/$ KERNEL. imgcp arch/arm/boot/dts /*. dtb/mnt/fat32/cp arch/arm/boot/dts/overlays /*. dtb */mnt/fat32/overlays/cp arch/arm/boot/dts/overlays/README/mnt/fat32/overlays/
Update firmwa
Tags: Raspbian http requires div min password alt mic flowRaspberry Pi-MySQL installation linuxmysql
Yesterday is a and tomorrow is a mystery, and today is a gift.
Pre-orderMySQL on the Raspberry Pi raspberry the installation and on the Linux on the same, because the online tutorial is on
Prepare the hard driveAccording to the online introduction that if it is FAT or NTFS format may appear permissions problems, and then simply formatted as EXT4 format.Working with the Minitool Partition WizardWith a small USB flash drive, you can format the Raspberry Pi directly, the command is:mkfs-t EXT4/DEV/SDB1Installing SambaSet the shared folder to/samba$ Mkdir/sambaSet access Permissions$ chmod 777/sa
The Raspberry Pi file directory is a must-have basic knowledge. Understand the distribution of files within the system.
Structure of the Directory
The role of the directory
Reference Blog/bin Binary executable command /dev device special files /etc system administration and configuration Files /etc/rc.d Startup configuration files and scripts /home base point of user home director
1. Visit the website: http://www.airspayce.com/mikem/bcm2835/, the website provides a library file for the Raspberry Pi: Click to download click to download. Follow the prompts to install.2. In the example folder in bcm2835-1.4.2, which is the history file, open the Bink folder, and use Gcc-o blink blink-l bcm2835 to generate blink execution files.3. In the Blink
Qt InstallationPC-Side download and installation can be HTTPS://MIRRORS.USTC.EDU.CN/QTPROJECT/OFFICIAL_RELEASES/QTRaspberry Pi: qt Dev kit and OPENCV installationsudo apt-get install Qt4-dev-toolssudo apt-get install Libopencv-devDeveloped on the PC after the test to the Raspberry Pi, modify the Pro link library and he
Mr. Kim. Wu
No.: mrkimwu
QQ: 1315371422
In the previous article "Raspberry Pi's Application in ID card verification", I briefly introduced and implemented the function of Raspberry Pi's reading with ID card. However, reading the local machine is far from enough.
The retrieved ID card information is sent to the remote backend server over the network for data query, judgment, and storage.
The following descr
Let's see if there are any of the following alternatives, and if not, you need to update the software source:
Install in sequence:
sudo apt-get installqtcreator
sudo apt-get installqt4-default
sudo apt-get install Qt4-designer
sudo apt-get install Qt4-qmlviewer
sudo apt-get install Qt4-qmake
Move the qwt6.1.3 to the Raspberry
First download Ubuntu,3: ubuntu-16.04Extract files to get close to 4G image fileAdd an SSH text document. Login ID and password are: UbuntuChange PasswordAdd VNC Interface Remote control: First update the software library and download VNCsudo apt-get updatesudo apt-get install TightvncserveStart VNCTightvncserverSet VNC boot up and edit with nano text editor:sudo nano/etc/init.d/tightvncserverEnter the following command:#!/bin/sh### BEGIN INIT info# p
and is easily downloaded and modified by the reader.The following books will not be introduced, share the graphic coverHere is still to recommend my own built Python development Learning Group: 725479218, the group is the development of Python, if you are learning Python, small series welcome you to join, everyone is the software Development Party, not regularly share dry goods (only Python software development-related), Including a copy of my own. 2018 Latest Python Advanced materials and high
motion #counterlastuploaded =timestamp Motioncounter=0#Otherwise, the hostel is not occupied Else: Motioncounter=0#Check to see if the frames should is displayed to screen ifconf["Show_video"]: #Display the security feedCv2.imshow ("Security Feed", frame) key= Cv2.waitkey (1) 0xFF#if the ' Q ' key is pressed, break from the Lop ifKey = = Ord ("Q"): Break #clear the stream in preparation for the next frameRawcapture.truncate (0)Conf.json{ "Sh
Opencv-2.4.9.zipunzip OPENCV-2.4.9.ZIPRM opencv-2.4.9.zipcd opencv-2.4.9mkdir BUILDCD buildcmake-d CMAKE_BUILD_TYPE= release-d cmake_install_prefix=/usr/local-d build_python_support=on-d Build_examples=on. Make It takes a long time to compile and install sudo make install/usr/local/lib #没作用似乎 Adding environment variables sudo nano/etc/bash.bashrc Pkg_config_path= $PKG _config_path:/usr/local/lib/pkgconfig Export Pkg_config_path #添加到上面的那个文件的末尾中 To finish, start designing happily, here is an exam
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