The first blog gave me a long course design, that is, the topic "3G wireless router. The development platform used in this development project is the Raspberry Pi Development Board. The following is the question .....
Objective: To set R
Http://conanwhf.gitcafe.io/2016/01/30/rpi-protocol/?hmsr=toutiao.ioutm_medium=toutiao.ioutm_source= Toutiao.io
implementation of several simple protocols on Raspberry Pi posted on 2016-01-30 | Categories in Raspberrypi | No Comments
The procrastination of his own is really disciplining, this is a delay to abandon the article. Fast New Year, how can not be dragged into the years after the spirit, clear the
program, please visit the blog: https://www.cnblogs.com/lulipro/p/5992172.html
This experiment was first tried in a new field and has never previously been approached by Raspberry Pi based program development. At first, there were a lot of problems: 1. The Raspberry P
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.
0. PrefaceWhy do you want to use cross-compilation for "1"
The speed at which the cross-compilation tool is developed faster. The Raspberry Pi has already installed the GCC toolchain, which can be compiled directly from the Raspberry Pi source code to generate the executable file. At the same time, the PC can also use
Prepare
Raspberry Pi Development Board ( Click here to purchase ) (has been brushed into the official Raspbian system )
USB to Serial board ( click here to buy )
DuPont Line (4 root)
Connection
串口板 树莓派--------------------VCC +5V(非必须)RX TXD(GPIO15)TX RXD(GPIO14)GND Ground
1. Preparatory work:
1.1 Development environment System Ubuntu 16 (64-bit)
1.2 Download Source: Https://github.com/raspberrypi
Linux: Raspberry Pi kernel source
Tools: Raspberry Pi cross-compilation tool
Download mode:
(1) Web download
Download zip directly
(2) Command down
Although the Raspberry Pi has gcc, you can compile the C + + program, but if the project is large, compiling with the Raspberry Pi will waste a lot of time, we can compile the program on the PC, then pass the executable file to the Raspberry
the remote control back ah, after all, is playing in the pool, remote control distance of 500 meters AH6.9g Steering Gear 2Key technology points------1. Respberry Pi Brushless motor control, at present, there is little information on the network, I experiment for 2 nights, basically found out the law of PWM brushless ESC2. Fp-v video scheme, this piece is also more headache, MJPEG plan feel very card, only a few frames a second, motion is mainly to d
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
Raspberry PI board because the cost is not add wireless module, do not want to be bound by the network cable, we need to own a USB wireless module. When buying the board, see the official recommended Edup wireless card, the price is appropriate, directly started.Using REALTEK8188 chip, 802.11n, transmission speed 150Mbps, the applicable range of 130 square meters.Plug it into any U-port, such as:Because the
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 Raspberry
---restore content starts---Microsoft's Dotnet Core has been released for a long time, and now the latest version is 2.0.2We found a lot of articles on the Service Micro service for dotnet Core. But the local programs are less pathetic.As the CS end adhere to the dotneter I think should do something, let mistakenly into the dotnet CS end of the small pot friends do not go down.Good net worth, measurements, the bank card number has been explained clearly, down we get to the point, see how to run
Tags: span no install Linu target Date list development issuesRaspberry Pi is really a magical instrument ~ ~ Playing with the Raspberry Pi hardware is too much effort, so I still think of it as a tool for me to practice Linux, yesterday after trying to install the LNMP environment after the deployment of a THINKCMF (b
, 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 Develop
developers need to build an art-level graphical user interface. QT is easy to scale and allows for real component programming. Basically, Qt is the same type of thing as the MOTIF,OPENWIN,GTK on the X Window and the Mfc,owl,vcl,atl on the Windows platform.To put it simply, QT can write programs that are easily ported to other platforms, basically recompiling the program.install qt on Raspberry PiInstall using the following commandsudo apt-get install
not long-term reliable, and once they feel no business interest, they can shut down any application or any product on the shelf at any time. In addition, the "Prism Door" event is also a big driver of the Cook's Arkos project, if the NSA can arbitrarily crawl data from Google, Microsoft, Facebook, AOL (US online), Twitter, users are tantamount to "naked" online, and who can believe. Apparently, Cook chose to believe in himself.However, Arkos has potential limitations, and most home internet ser
The first thing we think of about Linux Web servers is:Apache + MySql + Php.
Apache: is the world's first Web server software to use.
Can run on almost all widely used computer platforms, and is the most popular Web server-side software because of its widespread use across platforms and security.
MySQL: is a relational database management system developed by the Swedish MySQL AB company. is the most popular relational database management system, MySQL is one of the best RDBMS (r
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
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