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Raspberry Pi Raspbian and raspberry raspbianRaspberry Pi Raspbian recorded the process of installing Raspberry Pi for the first time and implementing Intranet penetration through peanut shells.
5. Connect to
Compared to the Raspberry Pi 1 it has:
A 900MHz quad-core ARM cortex-a7 CPU
1GB RAM
Like the (Pi 1) Model B +, it also has:
4 USB Ports
GPIO Pins
Full HDMI port
Ethernet Port
Combined 3.5mm audio jack and composite video
Camera Interface (CSI)
Display Interface (DSI)
Micro SD Card Slot
Videocore IV 3D Graphics core
Becau
Raspberry Pi 3+ros Kinetic version
Remote PC +ros Indigo version
First turn on the Raspberry Pi camera function
sudo raspi-config
Start Camera function
and restart the Raspberry Pi.
Open the
preferences
Enable Boot to Desktop/scratch: Select default boot High desktop GUI/command line interface
Internationlisation Options:
Change Locale: Modify the encoding and select en_US. UTF-8, ZH_CN. UTF-8, ZH_CN. GBK
Change Timezone: Modify time zone, select Asia/shanghai
Change Keuboard layout: Modifying keyboard layouts, choosing Chinese (US)
2. Upgrade the system and software upgrade,update, a long wait ...3. Time synchronization,
Raspberry Pi builds and installs mysql, raspberry builds mysql
Recently, I started a Raspberry Pi with a whimsical attempt to build a small household server, which has been around for 7x24 hours at home.
It is really very small, only a big slap, bought some accessories for
The Linux host os:ubuntu14.04 64-bit and runs on WMware workstation 10.Raspberry Pi Version: Raspberry Pi 2 Type B.Raspberry Pi OS: The Raspbian-jessie under the official website.1. Why cross-compiling is requiredCompiling a. C source file directly on Ubuntu can be compiled
third-generation Raspberry Pi in power supply needs to be paired with a 2.5A USB charger. The author experience is the Raspberry Pi B and the two boards, through AV or HDMI can be output to any display, connect the mouse and keyboard, a complete computer was born. If you do not have idle monitor on hand,
:).-----------------------------to spit out the installation experience-----------------------------------------------------Today, there is a project to do a self-running measurement system, thinking about how to implement automatic measurement when not connected to the PC. The previous day has been the Python GUI, so think of the idle raspberry Pi, perhaps with an HDMI monitor can be used. Friday, while pl
How to Use QEMU to simulate Raspberry Pi
The following describes how to use QEMU to simulate Raspberry Pi. After using this method, the system can be tested without a Development Board.
Development Environment
The Host OS environment used for testing is Debian 7.2 Wheezy amd64.
Guest OS is the Debian Raspbian () after
sleep 0.5 play 62 sleep 0.5 play 64 sleep 0.5 play 60 sleep 0.5end
You can enter frere to call this method later. For example, call in a loop:
4.times do frereend
6. Synths (synthesizer)
The synthesizer enables the play method to make different sound effects. The default synthesizer is "pretty_bell", but you can change it by yourself:
"pretty_bell""dull_bell""beep""saw_beep""fm"
Try different synthesizer:
with_synth "fm"2.times do play 60 sleep 0.5 play 62 sleep 0.5end
7. threads
consistent and can be rebuilt (_reproducible_) build environment. Because this has some requirements for CPU and disk space, here are the minimum configuration requirements for some hardware:Raspberry Pi 3 (pi 2 is OK, but the build takes longer)16GB size SD card (8GB is not enough!) )Enable swap space (1GB size of memory is not enough)Docker Engine 1.11
Installing the Build Environment
As you'll soon se
Code:
Import serial #import serial moduleSer = serial. Serial ('/dev/ttyacm1 ', 9600,timeout=1); #open named port at 9600,1s Timeot
#try and Exceptstructure are exception handlerTryWhile 1:Ser.write (' s '); #writ a string to portResponse = Ser.readall (); #read a string from portPrint response;ExceptSer.close ();
Here I save the above code in the Raspberry Pi as a communication.py file.
2. In the
-Fi and Bluetooth 4.1 Support on the wireless side. In terms of power supply, the third generation Raspberry Pi needs to be paired with a 2.5A USB charger. I have tried Raspberry Pi B and B +. I can use av or HDMI to output images to any monitor and connect them to the mouse and keyboard, A complete computer was born.
Setting up Windows Ten for IoT on your Raspberry PiThis week on the BUILD conference in San Francisco Microsoft released the first preview of the Windows IoT (Internet of Thi NGS) for Raspberry Pi 2 (AS-well-lovely devices like the Intel Galileo and Minnowboard Max).First, a
debugging of visual algorithms on the Windows platform
Integrated development Environment 2:geany, the algorithm on the Linux platform and the Cloud Tsu tune
1.3 Preparation KnowledgeSome of the previous blogs describe the basics of this system:
Raspberry Pi Machine Vision Programming Environment setup (point me)
Python Machine Vision Progr
-S terminal name
Create a new background virtual terminal
-ls
View the background virtual terminal you have created
-R Terminal Name
Enter the terminal
Shortcut keys
Shortcut keys
Then press
Role
Ctrol+a
D
Save a background virtual terminal
Ctrol+a
W
Show list of all windows
Ctrol+a
C
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
perform cross-compilation, We need to install the corresponding cross-compilation tool chain on the host platform, and then use this cross-compilation tool chain to compile the source code, finally, code that can be run on the target platform is generated.
Common examples of cross-compilation are as follows:
1. On Windows PC, the executable code for arm cpu can be compiled using ADS (ARM development enviro
If the device is not received, after using VNC login, the display resolution is very small, should be 480p, resulting in a very inconvenient use.By modifying the/boot/config.txt file, the desktop can also be displayed at a set resolution when the monitor is not connected. Here's how:1. Open Config.txt FileMethod One: Use the SD card reader to open the Config.txt file in the boot folder in the Windows environmentMethod Two: After entering the
text file that holds the CPU temperature.
dialog.hIntroduce header file:
#include
To define a file pointer:
Private:
QFile *temp;
Dialog.cppInitialize temp in the construction file, where the string is the path to the Raspberry Pi CPU temperature file:
temp = new QFile ("/sys/class/thermal/thermal_zone0/temp");
At this point you can test to see if you can output the temperature of the system, add t
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