Recently found a fun thing, Lakka, what is it? It is a game simulator, but not those simple game simulator, it can play a lot of games, arcade games, red and white machine games, PS games, such as the synthesizer.A link to the official website: Lakka official websiteAbout Lakka's introduction, the direct official website cut a diagram to explain under:Four points: strong, friendly, low cost, open source!!Friendly on the table now to realize this universal game is too easy! The steps of the offic
Raspberry Pi When used alone, often need touch screen and soft keyboard for easy operation, micro-snow LCD display can better realize this function,Just as the lab buys a 3 b board and a 5inch monitor, it installs the official installation manual once.One: Material preparation
Raspberry
Now the new version of the Raspberry Pi kernel because to be compatible with Raspberry Pi 2 and Raspberry Pi B + and other previous versions, the use of the original different kernel operating mode, using the device tree, more fle
If you have dense phobias, you only need to look at the bold Section of the title and font. If you have an underline, you can click it on the website.
There are many common Linux system branches in China:
1. Debian
2. RedHat
Refer:Overview of the evolution of GNU/Linux releases over the years.
At present, the Debian branch of the desktop version is better than the RedHat branch of the server, because the Rasp
Raspberry Pi on the Cloud (1): Environment preparationRaspberry Pi on the Cloud (2): Uploading sensor data to AWS IoT and leveraging Kibana for presentation1. Sensor installation and configuration 1.1 DHT22 installationThe DHT22 is a temperature and humidity sensor with 3 pins, the first pin on the left (#1) is the 3-5v power supply, the second pin (#2) is connec
:id 0bda:8178 Realtek Semiconductor Corp rtl8192cu 802.11n WLAN Adapter
You can see that the USB camera is Microdia Sonix USB 2.0 CameraThe driver of this device has been in the Linux-2.6, but Pidora is not supported by default, so you need to re-compile Linuxkernel, custom, support RTL8192CU and Sonix camera can be, and then made of RPM, Install via RPM:Click ( here) to collapse or open
RPM-UVH kernelxxxxxxxxx.rpm
Once installed, y
Use the command line to set Raspberry Pi's Wi-Fi network
If you have not logged on to the Common graphic user interface, This method is suitable for setting Raspberry Pi's wifi. Especially when you do not have a screen or wired network, you only use the serial control line. In addition, this method does not require additional software, and everything is included in Rasp
continuous playback.
You can skip a Playing Song and play the next song.
After installing my system, you can use Raspberry Pi as a server, send broadcasts, play popular songs or listen in English (or something that is permitted by law), and tell friends and family a website, then they can play songs on it. Friends who haven't passed cet6 can add cet6 to simulate the real test environment. Or put it
, Aria2 WebUI under the Configconfiguration.js Open, will
Host:location.protocol.startsWith (' http ')? Location.hostname: ' localhost '
This line is changed to:
Host:location.protocol.startsWith (' http ')? Location.hostname: ' 0.0.0.0 '
Otherwise there is no way to access outside the server.
Then we can enter the Raspberry Pi intranet IP address on the other host, such as the
software package is ready and can be released;
Iii. Cross-compiling source code
1. Environment
Ubuntu
2. Install Raspberry Pi cross compiling tool
Step1. download Raspberry Pi cross compiler tool https://github.com/raspberrypi/tools
Step 2: place the source code in a folder that users can share, such as/usr/tools.
Ste
mode; (5) Photo time, set to 1 second; (6) image size, set to 640x480. The script will automatically take 78 photos, each of which will apply different special effect parameters.
To execute this script, you only need to enter the following command line:
$ python name_of_this_script.py
Below are some samples captured.
Small benefits
In addition to using the raspistill command line tool to manipulate the raspicam camera module, there are other met
Time"--query data over a period of time#!/bin/shdbname= "Cpu.db"sqlite3 $DBNAME "select * from Tempswhere Tdatetime > DateTime (' 2014-08-02 19:00:00 ') andtdatetime "Brief description""1" 2014-08-02 19:00:00 must account for 4 figures, others must account for 2 numbers, insufficient to use 0. "2" Here does not need to increase the localtime parameter, the specific reason is unknown.5 Summary"1" When you create a table, you can use the default const
Raspberry Pi configuration wireless hotspotMyth
I have been thinking about adding input and output devices to BananaPro over the past few days. I finally found that I had a problem with my own ideas. In addition to the media center, an input/output device is required for the upper part. In most cases, this is not required, it's just a misunderstanding that a super-small server that provides services treats
So that your computer can connect to Raspberry Pi without entering a password. You only need to generate an SSH key.
1. Check for existing SSH keys (check the existing SSK key)
First, check whether your computer (the device you use to connect to Raspberry Pi) has an SSH key:
There should be a lot of students in how to use WiFi for Raspberry Pi connection encountered some bottlenecks, the internet said that generally need a router, in fact, we download a 360 free WiFi can, equivalent to the computer as a router to share the network, Xiang Fine steps are as follows:Step one: Download 360 free WiFi, set up your username and password.Vie
"select * from Temps;" In the console and return the results as follows. rpi.cpu|2014-08-03 10:40:40|48.7rpi.cpu|2014-08-03 10:41:41|48.7rpi.cpu|2014-08-03 10:42:41|49.2RPi.CPU| 2014-08-03 10:43:41|48.7rpi.cpu|2014-08-03 10:44:41|48.7rpi.cpu|2014-08-03 10:45:41|49.23 boot background run"Startup script"--auto-start.shCreate a new auto-start.sh script in this directory, as follows #!/bin/bashcd/home/pi/python-works/cpu-temp python db-insert-temp.py "Si
Raspberry Pi System I was playing bad ....Probably ran a little bit of this thing, causing problems with the systemsudo apt-get UpgradeUpgrade feature: Update software without changing existing software settingsUse caution in this function!!! Because after the update may be the graphics card driver updated, resulting in the interface!!!I am now a typical Raspberry
.
Pick the Build you want. I got Windows IoT Core insider Preview Image for Raspberry Pi 2.
You'll need to install the older "File Transfer Manager" If you don't have it. If you had Chrome, you'll need to click the ". DLM" file and open it with the file Transfer Manager. You'll also
+ +"-load a picture by code, convert the color picture to black and white by OPENCV, and output the original image and the converted picture to the screen.
#include "Makefile"
INCLUDE = $ (Shell pkg-config--cflags opencv)
LIBS = $ (Shell pkg-config--libs opencv)
SOURCES = test.cpp
# target File
OBJECTS = $ (SOURCES:.CPP=.O)
# executable file
TARGET = Test
$ (target): $ (OBJECTS)
g++-O $ (TARGET) $ ( OBJECTS)-I $ (INCLUDE) $ (LIBS)
$ (OBJECTS): $ (SOURCES)
g++-C $ (SOURCES) Clean
:
for inch Pygame.event.get ()]:3 breakI found that the Raspberry Pi connection network is really slow, plug in the power to start the network for several minutes to SSH connection to the Raspberry Pi IP, as for the access to the external network, sometimes there is no, sometimes due to some kind of failure, s
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