raspberry pi 3 wireless

In Raspberry Pi 3, direct startup does not enter the graphical interface by default. When you enter using SSH dialing (software such as putty), you can enter it at the command line sudo raspi-config //Enter settings, here are a lot of settings In the boot option, the Raspberry

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

Realize the WiFi disconnection automatically, the principle is to use Python to monitor whether the network is disconnected, if the disconnection will restart the network service. Next to everyone to share the implementation of code, need to refer to the friend 1.Python code autowifi.py, placed in the/HOME/PI directory: #!/usr/bin/pythonimportos, Time whiletrue: if ' 192 ' not in Os.popen (' ifconfig | grep 192 '). Read (): print ' \n**** * * W

VSFTPD is an open source, lightweight, common FTP server. 1, install VSFTPD server (about 400KB) sudo apt-get install vsftpd 2, start FTP service sudo service vsftpd start 3, Edit vsftdp config file sudo nano/etc/vsftpd. conf find the following line, define Anonymous_enable=no means: Do not allow anonymous access Local_enable=yes set Local users can access.Write_enable=yes settings can be written local_umask=022 set the file's permission mask after up

The raspberry Pi2, introduced in February 2015, cannot be installed Lazarus with the previous method, and when installing the FPC, the following problem stops the installation.Find a solution from http://otapi.com/2015/02/10/raspberry-pi-2-freepascal-lazarus-and-delphi/:1. Installing Subversion and unzipSudo apt-get UpdateSudo Apt-get Install Subversion UNIZP2. g

Test passes on the Raspberry Pi pi3b official system. 1. Download http://www.linuxfromscratch.org/blfs/view/svn/general/yasm.html yasm and install:./configure--prefix=/usrMakeMake install 2. Download the latest stable version of x264 and install:./configure--enable-shared--prefix=/usrMakeMake install 3.sudo Apt-get Install aptitudesudo aptitude install Libfaac-

DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 8DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 8DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 9DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 8DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 13DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 9DHCPDISCOVER on Wlan0 to 255.255.255.255 port interval 6No DHCPOFFERs received.No working leases in persistent database-sleeping.Done.has been an error, and later

Go to a script written in Python that outputs the various states and data of the Raspberry Pi, including CPU temperature, CPU usage, memory usage, and hard disk usage. Article from: Raspberry Pi Lab First, create a script: sudo nano get.py Second, paste the following code: Bash Import OS # Return CPU temperatu

Raspberry Pi has two audio output modes: hdmi and headphone interfaces. You can switch between the two modes at any time. If your HDMI monitor has a built-in speaker, the audio can be played through the HDMI interface. You can also switch to the headset interface to use the speaker of the headset or other headset interface to play the video. If your monitor requests support from the speaker, the sound is ou

Category: Raspberry Pi Linux2013-03-12 10:18 4288 People read Comments (1) favorite reports Directory (?) [+]1. Installing VNC[Plain]View Plaincopy sudo apt-get install Tightvncserver 2. Add a desktop[Plain]View Plaincopy Tightvncserver Set the password.3. Remote connection to the desktopDownload Vncviewerhttp://www.realvnc.com/dow

. 4 3 Make sudo Make InstallCreate a soft link. this way, you can start Python 3.4.1 by playing Python3.The first line removes existing soft links to Python 3.2.3.The second line creates the/usr/bin/python3 this soft link to the Python 3.4.1.The third line creates a soft link for the PIP. PIP has been officially integrated into the python3.4, and it is convenient to install the third-party module on the PyPI.1 sudo rm /usr/bin/python32sudoln -s/opt/

Raspberry pi +opencv read camera Call the camera on the Raspberry Pi, read each frame in the video stream, and use the canny edge detection to extract the edges in each frame, the final effect is as follows: ReadVideo.cpp #include "opencv2/opencv.hpp" using namespace CV; int main (int, char**) { videocapture ca

#文中设置均基于最新版的Raspbian系统2016-Version 11 Raspbian in the desktop environment, the system will go into hibernation after a period of time. Tried some methods such as directly with Xset close DPMS, is not successful. Raspbian uses a lightweight desktop display manager that is LIGHTDM, which allows you to set up Xserver desktop session interaction \ Display, and so on. 1. Open the terminal; 2. Edit/etc/lightdm/lightdm.conf 3. Locate the ' Xserver-command '

How to build a practical system on raspberry 3GuideDeploying the openSUSE System on raspberry 3 is not very complicated, but here are some tips to help you better complete this process. You will have some versions to choose from. If you plan to use Raspberry Pi

-distribution method, which can effectively reduce disk fragments. Default Value: prealloc # pre-allocation time: none 　　 Create aria2.session touch /etc/aria2/aria2.session 　　 Edit Startup File vim /etc/init.d/aria2c 　　 Content: #! /Bin/sh ### begin init info # provides: aria2 # required-start: $ remote_fs $ Network # required-stop: $ remote_fs $ Network # default-start: 2 3 4 5 # default-stop: 0 1 6 # Short-Description: aria2 downloader ### end ini

1. Format the SD card with Sdformatter2. Unzip the downloaded operating system3. Copy the operating system to the SD card (to be placed in the root directory, remove the outermost folder path)4. Insert the SD card into the Raspberry Pi and connect the power supply5. Select the system you want to install on the Start screen, then click InstallInstallation wait time of about 6.10 minutesSTARTX: Command line E

Raspberry Pi 2 install the latest version FPC and Lazarus 1.5 The Raspberry Pi2 launched in February 2015 does not support Lazarus installation using the previous method. When installing fpc, the following problems occur. Slave:1. Install subversion and unzipSudo Apt-get updateSudo Apt-get install subversion unizp2. Obtain and compile the latest FreePascal Compil