Tags: ges style grant roo option tar install MySQL span restInstall MySQL, you will be asked to enter the password 2 times during the installation sudo apt-get install MySQL-server Start MySQL, default is auto start sudo service MySQL start Turn off MySQL sudo service MySQL stop Restart MySQL sudo service MySQL restart MySQL cannot be accessed remotely, execute the following code - -p log in to MySQL first GRANT All Privileges on *. * to ' Root '@'
linux applications. the reason is very simple. perl is fading out, ruby is not powerful, shell is not enough, php is not suitable, and java is not explained.
I remember that the Redhat 7 character interface installer was written in python, which was almost the first time I heard about python. it was very powerful, easy to use, and easy to modify and adjust.
Don't waste time and energy on things unrelated to business logic
Yesterday, my wife read the RPi. GPIO documentation. in an hour and ten
"/" that is, for example, the IP address of the Raspberry Pi is: 192.168.0.10
That with http://192.168.0.10:8080 access to our "/" route (bottle default port is 8080)
Similarly, the path to the second route is "/cmd", which means that access to Http://192.168.0.10:8080/cmd accesses the second route
The last sentence: run (host = "0.0.0.0") is called the bottle Run method, set up an HTTP server, so that we
library of the aboveRASPICAMTEST:A Small test app which uses the static library. Execute with./raspicamtest. Press ESC to exit.Using the Static LibraryADD the Include path-i$ (HOME)/GIT/ROBIDOUILLE/RASPICAM_CVLink with the RASPICAMCV library-l$ (HOME)/GIT/ROBIDOUILLE/RASPICAM_CV-LRASPICAMCVLink with the Userland libraries:-l$ (HOME)/git/raspberrypi/userland/build/lib-lmmal_core-lmmal-l Mmal_util-lvcos-lbcm_hostIn your code add #include "RaspiCamCV.h"
logic.
Yesterday my wife read the Rpi.gpio document, one hours and dozens of lines of code can be achieved by the Raspberry Pi car through the infrared detector tracking operation. It's something that no other language can do or that's hard to do.
Video stamp here: Raspberry Pi
at the time of the connection, it's simple to do, just add the library to the. Pro file, as shown in:And then compile again, under normal circumstances will be compiled successfully, into the project directory, we will find a very long name of the folder, which is the QT in the compilation of the time produced by some intermediate files, of course, we compile the generated executable is also in the inside, the name and work name, open the console, Enter the directory with the CD command. and th
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
Raspberry Pi-SonicPi (sound programming)
Sonic Pi is an open-source programming environment designed to explore and teach programming concepts by creating sound production music processes.
The Code executed by Sonic Pi is based on Ruby, which is a beautiful and concise progr
/opt/ros/indigo
Common errors:
The compilation process compiles more than 180 package and installs it in the/opt/ros/indigo directory, often reporting ' collada_parser ', ' collada_urdf ', ' Rviz ', ' Visualization_ Tutorials ', ' rqt_robot_plugins/rqt_rviz ' these packets are faulty and the installation is interrupted. The solution is to remove the packages from the directory ~/ROS_CATKIN_WS/SRC directory and recompile the entire Ros. Finally, a separate workspace is created and the packages a
Objective
Last year's Raspberry Pi has been in the drawer to eat ash, the previous array of Debian 9 released, there is no accidental support for the Raspberry Pi.
Then re-took out the card reader and re-installed on the Debian Desktop version of the system.
Introduced
Now this thing is just a little bit more about Py
Raspberry Pi is a magical machine, the CPU and memory are poor, but small volume of low power consumption, on the above to engage in some of the West is actually very interesting, quite fun. is Pidara, basic service is not streamlined how much, first cat CPU and RAM. [[emailprotected] ~]$ cat/proc/cpuinfo processor:armv6-compatible Processor Rev 7 (v6l) bogomips:46 4.48FEATURES:SWP half thumb fastmult vfp
Setting up Wi-Fi with the Command lineSIMON MONKThis tutorial works best if your router is broadcasting the SSID. Make sure the "broadcast SSID" set up on your router! This could not work with "private" SSID setupsSetting up WiFi in occidentalis, is also pretty straight forward. You just need to add the name of your wireless network (its SSID) and your password to a configuration file.Step 1.Boot the Raspberry Pi
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
---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
Github:https://github.com/hicrater/raspberry-dht11-temperature.gitFirst, look at the wiring
Wiring diagram
Vcc
Cathode
Pick up the Raspberry Pi 3.3v power supply (choose one on the line)
GND
Negative
Pick up the Raspberry
Today to change the play, do not continue to explore Raspbian system, research on the official website recommended another method of installation noobs.So what is noobs? It is an operating system management tool designed for easy-to-use graphical interfaces built for Raspberry Pi. All called: New out of theBox softwareOfficial as follows:The original purpose of this tool is to simplify the
First, the previous figure:
Accessories used:
1. Main Character: Raspberry Pi
2. secondary role: Infrared Detection
3. Miscellaneous: bread, DuPont wire, buzzer, led, resistor
The infrared detection has three pins. The power supply at both ends and the signal output in the middle directly connect the signal to a gpio of Raspberry
Raspberry Pi advanced GPIO library, wiringpi2 for python Use note (3) GPIO operations, gpiowiringpi2
The core function of the GPIO library is to operate GPIO. GPIO is the "general input/output" interface, such as lighting up an LED or relay, or using iic spi 1-wire and other protocols, reading and writing data are all useful for GPIO. It can be said that without GPIO, R
do not drive, simple rough with Raspberry Pi drive USB printerAdmin April 14, 2015 5 Comments
Many articles on the web are how to use raspberry sent to do a universal print server, but in many scenarios, the configuration cups what is really their own zuo of the good way to die, all kinds of Linux under the driver configuration to make blood vomit. and drive a v
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