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user, for FTP download Web site files, as followsAdd a user named WebAdminsudo useradd WebAdminModify password for user WebAdminsudo passwd WebAdminAs prompted, enter the password, for example: 123456To have the user WebAdmin ownership of the WWW root directorysudo chown-r webadmin/usr/share/nginx/wwwChange the login directory for user WebAdmin to the WWW root directorysudo usermod-d/usr/share/nginx/www WebAdminRestart VSFTPDsudo service vsftpd resta
0 PrefaceThis article explains how to install Mosquitto on a Raspberry Pi. In this article, two simple examples of how to use the MQTT protocol for message subscriptions in the Raspberry Pi include the mosquitto_sub instruction to implement message subscriptions and Paho-python
This article by the Raspberry Pi Fan itjoker editor, reprint please indicate the source. I also have Sina blog is also Raspberry Pi fan itjoker may name less it ...Required Materials: Raspberry Pi 2B or more than 2B, l2985n Drive
images.
$ pip install numpy
Time consumed:
Raspberry Pi B +: less than 45 minutes
Raspberry Pi 2: less than 15 minutesStep 9:
Download and decompress OpenCV:
$ wget -O opencv-2.4.10.zip http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.10/opencv-2.4.10
-pip.py
Time consumed:
Raspberry Pi B +: less than 2 minutes
Raspberry Pi 2: less than 30 secondsStep 7:
Install virtualenv and virtualenvwrapper
$ sudo pip install virtualenv virtualenvwrapper
Then, update ~ The/. profile file is as follows:
export WORKON_HOME=$HOME/.virtualenvssource /usr/local/bin/virtualenvwrapper.
Tags: Raspberry Pi sqlite python0 PrefaceThis article uses Python to insert the Raspberry Pi temperature data into the SQLite database, and the SQLite database contains a record table with only three fields-parameter name, time and temperature values. This article mainly exp
Tags: Raspberry Pi CPU Temperature0 PrefaceThis article through the Python SQLite query Raspberry Pi CPU temperature history data, in the previous blog post has introduced the Raspberry Pi
Python is used for simple WEB control of Raspberry Pi, and python Raspberry Pi web
First, we will show you the effect. I feel very satisfied. Please continue to read the full text:
Knowledge used:
Raspberry Pi (Raspberrypi) common image high-speed downloadRaspberry Pi Official website in the domestic open speed is relatively slow, want to download the image may need to wait for a long time, in order to save time to download the image, I here to organize the
install only qmake, useless (sudo apt-get install Qt4-qmake). Qt official website download that installation package can be large, how to do, because the use of Debian raspberry, search for a Debian Qt, find out if there is no source and the name of the installation package. Found the following address, Http://packages.debian.org/unstable/main/qt-sdk looked after a sudden cheerful, installed Libqt4-dev see
heat up your brewing material with a PID controller. But I think it's a bit boring (which means you can't experience the full winemaking process).650) this.width=650; "class=" AlignCenter size-full wp-image-85372 "src=" http://www.linuxprobe.com/wp-content/ Uploads/2017/10/timg.jpg "alt=" City will play: Linux+python+raspberry Pi Brewing Beer City will play: Lin
From SSH to port forwarding, these advanced technologies will make your Raspberry Pi development easier.
When you can enter a command in the command line, you are no longer a beginner in some new settings. Although the progress is not fast, you are indeed learning how to use a computer with a credit card size to satisfy some DIY ideas. This is
for processing Ros client and user interface. The PC needs to is on the same LAN with Raspberry Pi on the robot. You can log in the Raspberry Pi via SSH.Joy pad (Optional)If you had a joy pad for PC, you can use it to control the robot smoothly. But don ' t worry, if you don't have any joy pads, you can still use the
Raspberry Pi can do a lot of interesting things, it is equivalent to a small computer, installed on the system can be used as a small server home.
With this small server, you can implement an "offline" Download machine. But offline download here is not really offline, because the R
0. Preface
This article describes how to install OpenCV in the Raspberry Pi by compiling the source code, and a simple example of how to use OpenCV. For more information, please refer to-"Raspberry Pi Study notes-index Blog"1. Download several dependencies it is a good idea
Step One: Install the Raspberry Pi cross-compilation environmentEnvironment used: ubuntu13.041. Download the cross-compilation toolwget https://s3.amazonaws.com/RTI/Community/ports/toolchains/raspbian-toolchain-gcc-4.7.2-linux32.tar.gz2. Unzip to the system directoryTar-xvzf raspbian-toolchain-gcc-4.7.2-linux32.tar.gz-c/opt3. Add the appropriate path to the envir
Raspberry Pi--a card-type machine that is based on the size of a Linux system and has only a credit card size. Raspberry According to the inventor's idea, he was designed to reduce the cost of learning program development. You can understand it as a rudimentary version of the computer.
Raspberry Pi uses python+pyserial to realize serial communicationExt.: http://blog.csdn.net/homeway999/article/details/8642353Directory (?) [+]
Raspberry Pi uses pythonpyserial to realize serial communication
Raspberry
logic.
Yesterday my wife read the Rpi.gpio document, one hours and dozens of lines of code can be achieved by the Raspberry Pi car through the infrared detector tracking operation. It's something that no other language can do or that's hard to do.
Video stamp here: Raspberry Pi Infrared Tracking trolley
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