Environment: Raspbian-stretch (2018-06-27)Raspberry Pi: 3 generation B TypeOfficial website Installation Address: http://ozzmaker.com/virtual-keyboard-for-the-raspberry-pi/Home found the keyboard some keys have failed, no way, and windows, directly install a virtual key, is also flattered!Matchbox-keyboard is a "virtua
[Raspberry Pi] installing the node EnvironmentThis article is not about node compilation and installation. It is said that it takes a long time, so at first I refused. This article shows how to deploy ndoe compiled execution files. The download directory on the node official website contains the compiled execution files for arm. Address here: https://nodejs.org/dist/v4.2.1/ select the right Version Download
of the machine, install the Chinese font, and then change back to ZH_CN. UTF-8, otherwise the first boot will appear square)Change_timezone – because the Raspberry Pi does not have an internal clock, is the time taken over the network to select Asia–shanghai.
Memory_split – The video memory configured for the desktop display.
SSH – whether to activa
Environment: Raspbian-stretch (2018-06-27)Raspberry Pi: 3 generation B Type1, Raspberry Pi equipment, need to be in the field can also have independent networking capabilities, it is necessary to use the Internet of Things module.The SIM868 communication module for micro-snow is used here, such as:2, will SIM868 insert
running result is as follows:
Arm_freq= 700
* Note: It may also display arm_freq = 0. I have seen such an output, but ignore it.
The benchmark frequency shown here is 700 Mhz, which is also the Default Frequency of Raspberry Pi, but can it be faster?
How to overclock Raspberry Pi
This article is not a compiled installation of node, it is said to take a long time, so at first I was rejected. This article shows how to deploy the compiled execution file for Ndoe. Node's official Web download directory itself has compiled executable files for arm. Address is here: HTTPS://NODEJS.ORG/DIST/V4.2.1/Choose the right version Download the appropriate version for the Raspberry Pi, the appropria
first, the simplest method on the Raspberry Pi is to use apt-get and then give control to the Openhab user.sudo apt-get install openhab-addon-binding--hr Openhab:openhab/usr/share/openhabNext, you need to tell Openhab to load the binding and configure all the required variables. go to the configuration folder, copy a copy of Openhab-default.cfg, and name it openhab.cfg. Open the file, search for hue, and r
First, hardware preparation(1), Raspberry Pi Pi2(2), 8G 10-speed Micro SD card(3), LCD display (if the VGA interface, need to add an HDMI to VGA module)(4), mouse(5), the installation of Windows 10 PC (requires physical direct installation, not virtual machine mode, this article is not required)Second, software preparation(1), Windows IoT
reader, burn write system to start!?
Open the USB Image Tool
The upper-left corner is device Mode, not volume mode!
Rescan Select the extracted img file after download
Write to wait for the progress bar to complete.
Cause of error
USB Image Tool must be run with administrator privileges in the system above Win7
USB Image Tool operation requires the. NET environment to be loaded directly using the system default.
After writing, you can start the
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 in
1. DMESG//Show recent events in Raspberry Pi
2. cat/var/log/syslog//Print Log
3, Raspberry Pi has a lightweight x11--lxde, can be set by Raspi-config automatic login LXDE
4, if you like to use the graphical interface installation program, you can install the package: synaptic
sudo apt-get-y install synaptic//Downlo
If you have a Raspberry Pi (Raspberry Pi) on hand, what will you do with it? Perhaps the following 34 ideas on how to use Raspberry Pi can inspire you.
Web Server
Home automation
BitTorrent Server
Web Cam Server
The start is quite smooth, the first use of the people on the Internet streamlined OS, found that the act and the PWR lamp has been on, internet access to say with HDMI to connect the display needs to modify the configuration file Config.txt, but the situation is still unchanged.If you still use the official system to try it, the internet search for the last 2015 years (feel should not be the latest, first try, no more brush also minutes of things, wh
Touch screen buy back for a long time no use, recently found that he is can touch. Tinker a bit.The personal use of Raspberry Pi is the official recommendation system, the version isThe best part of this version is that the kernel has compiled the Egalax touchscreen, and the Apt-get upgrade updates the system to use the touch
Citation: http://www.leiphone.com/news/201406/raspberry-pi-hands-on.htmlIt has been very strange to me that even if you install the system with the Debian installation CD, if you change the locale to Chinese, the system will not automatically install the Chinese font, the direct effect is that the system is a lot of information in Chinese display, but because the
./mjpg_streamer-i"./input_uvc.so"-o"./output_http.so -w ./www"
The instructions for starting the Raspberry Pi dedicated camera Raspicamera are:
1
./mjpg_streamer-i"./input_raspicam.so"-o"./output_http.so -w ./www"
Some cameras will have an error when executing this command, at least if you do not return to the command prompt at the end, and
, the host! = Build when the compilation is cross-compilation. If no designation will run ' config.guess ' to detect;>>--prefix: installation directory; >>--help: view parameters;>>--target: This parameter is special, indicating the target platform name that needs to be processed, primarily in the context of program language tools such as compilers and assembler, if no value is specified using host. Generally used to compile tools, such as to the arm Development Board to compile a can handle the
The latest is:https://www.offensive-security.com/kali-linux-arm-images/According to the official website is unable to find the Raspberry Pi version of the sha1sum and SHA1SUMS.GPG files, so the official network below the verification can not continue to do:Use Win32diskimager to write the downloaded image to the TF card, connect to HDMI, the screen will display n
problem occurs:
When using OpenCV on the raspberry pie, the following error occurred:
Window System doesn ' t support OpenGL
After positioning, found that the error occurred in Cvshowimage, after analysis, the reason is that the raspberry system is installed in the easy version of OpenGL, so do not support cvshowimage, the solution is as follows solutions.
Turn from: Http://raspberrypi.stackexchange.com
(recommended)-l,–ignore-locks ignore locked state reported by the target APIgnore the locked status reported by the target AP-e,–eap-terminate terminate each WPS session with an EAP FAIL packetTerminates the WPS process whenever an EAP failure packet is received-n,–nack Target AP always sends a nack [Auto]Always send Nack to target AP, default auto-w,–win7 Mimic a Windows 7 registrar [False]Analog win7 registration, default offReference:Http://lok.me/a/1972.htmlHttp://bao3.blogspot.com/2013/05/
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