raspberry pi official site

When the official website opens, it is often slow and the information is unbearable. Today's discovery docs are also available on GitHub, which is a lot faster with GitHub!Official: https://www.raspberrypi.org/documentation/Raspberry github:https://github.com/raspberrypi/documentation #这个快很多Reminder: Use github to download all documents at once. The document form

, otherwise there may be insufficient power supply ). Accessory list: 16 GB card (more than 8 GB) Micro sd Card Reader Micro usb data cable Charging head (5V2A, less than 2A may cause insufficient power supply, and 2A may also occur ).Download Raspberry Pi System Download the Raspberry Pi system from the

to scan the register for the interrupt number of the interrupt, and call the corresponding callback function if the interrupt occurs.1.for_each_set_bit (i, EDSR, + ) //cycle to find a bit in the EDSR that is 1 is interrupted 2.Generic_handle_irq (Gpio_to_irq (GPIO));//interrupt callback function that calls the interrupt vector (will be filled in when the driver requests an IRQ resource) GPIO_TO_IRQ (GPIO) is the interrupt vector number where the interrupt occurredThree • Interrupt Controller

followsListen 80; # # Listen for IPv4.4.2 Find index line, add index.php, modify content as followsIndex index.php index.html index.htm4.3 Find the definition section of PHP, remove the comments of these lines, and modify the contents as followsLocation ~ \.php$ {Fastcgi_pass Unix:/var/run/php5-fpm.sock;Fastcgi_index index.php;Include Fastcgi_params;}There are some other definitions in the PHP section, do not move it, for example:# Fastcgi_split_path_info ...# Fastcgi_pass 127.0.0.1:90005. Relo

opencv-2.4.10.zip http://sourceforge.net/projects/opencvlibrary/files/opencv-unix/2.4.10/opencv-2.4.10.zip/download$ unzip opencv-2.4.10.zip$ cd opencv-2.4.10 Installation: $ mkdir build$ cd build$ cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_NEW_PYTHON_SUPPORT=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON .. Time consumed: Raspberry Pi B +

+: less than 3 minutes Raspberry Pi 2: less than 1 minuteStep 10: At this step, OpenCV should have been installed in/usr/local/lib/python2.7/site-packages. However, to use OpenCV in the cv virtual environment, we first need to match the link to our site-packages directory: $ cd ~/.virtualenvs/cv/lib/python2.7/

The initial start of the Raspberry Pi requires the following steps:Install system image to SD cardConnection Configuration Raspberry PiConfigure Remote Control Raspberry PiThe materials to be prepared are as follows:More than 16G high-speed storage SD card one. (Please note that the

Raspberry Pi (Raspberry Pi Model B +) No monitor and wireless card get started GuideRecently bought a Raspberry Pi board (Raspberry Pi Model

Market 2 dollars SD Card sleeve quality is much better.2. Q: No screen, no keyboard, how to play Raspberry Pi?A: There is no screen and keyboard, as long as you have a maximum load of at least 750ma 5V power adapter and a network cable, you can use the computer via SSH to connect the Raspberry Pi. Here, I want to expl

The previous section describes how to write a Raspberry Pi system to the Raspberry Pi, and today we'll show you how to configure the Raspberry Pi for better use.If you have a monitor. Keyboard mouse, direct start can go to the des

Operation Command, but the greater advantage is: Many well-known domestic university sites have Raspbian system image source, it is convenient Because I started playing with the CentOS series of operating systems, more familiar with the command and other configuration methods, and the official CentOS site also has a dedicated Raspberry

we have already used the official image to set up the Raspberry Pi development environment, it can be said to be able to use the application, but if the official kernel has some features that do not meet our needs or need to partially crop the kernel, then we need to crop the Raspb