A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
A free open source software motion detector for CCTV software applications developed for Linux.
Questions on how to compile software for the Raspberry Pi using other devices.
The Domain Name System. A mechanism for translating Internet domain names to IP addresses.
Questions related to security of data on the Raspberry Pi. Also includes questions on using it in a security system (e.g. as a firewall).
a free software implementation of the SMB/CIFS networking protocol, providing file and print services for Microsoft Windows clients.
Systemd is an init system developed for use on GNU/Linux, generally replacing the old SysV daemon.
For questions about how to automate one's home with the Raspberry Pi. Home Automation allows control of lights, security systems, and other home appliances.
For questions pertaining to the Apache web server.
Permissions grant certain abilities - read, write, or execute a file - on a user level. Unset permissions result in the corresponding rights being denied. Questions address issues with permission sett…
This file is parsed by the GPU before the initialisation of the ARM core. It can be used to set various parameters to alter the behaviour of the system, such as display resolution or overclocking sett…
For questions pertaining to running, configuring, installing or troubleshooting the Xorg Server on the Raspberry Pi.
The Raspberry Pi B/B+/2B/3B has a standard Ethernet port for connecting it to the internet and to a network. Other RPi versions, such as all "A" versions, the RPi Zero and the Compute Module do not ha…
Regarding communication between a Raspberry Pi and another device. Communication that is not specific to any particular medium.
Omxplayer is a video player specifically made for the Raspberry Pi's GPU.
For questions about Raspbian Wheezy, the Raspberry Pi operating system based on Debian 7 ("Wheezy"). It was superseded by Raspbian Jessie in April 2015 and Stretch in June 2017. Use this tag only wher…
The Global Positioning System (GPS) is a space-based navigation system that provides location and time information to receivers on the surface of the earth. This tag should be used for questions how t…
For questions pertaining to signal conversion, either through hardware or software.
DC motors are commonly used in robotics and vehicles. They come in brushed and brushless versions; the latter also includes stepper motors. Note they are distinct from servos, for which there is a s…
Storage is the retention of retrievable data on a computer or other electronic system; memory. This tag should be used for questions about how to store data on the Pi, how to store data to be used by …
Data transfer refers to the movement of data from one medium to another. This is commonly achieved via the dd Unix program.
Streaming media is a process of constant receiving of multimedia delivered by a (content) provider and simultaneous presenting to an end-user. For streaming video use the tag streaming-video.
RFID stands for "radio-frequency identification" and is used to identify and track objects via wireless communication over short distances.
For questions about Raspbian Lite, the minimal version of the Raspbian operating system, which does not include most of the graphical packages.
A package is a specific piece of software and data in an archive files. It can be installed and uninstalled usually be a distribution-dependent package manager (e.g. apt-get on Raspbian or pacman on A…
Questions related to the CPU and instruction set of the Raspberry Pi. See also: cross-compiling
OpenELEC is the Open Embedded Linux Entertainment Center. It's a small Linux distribution for playing media.
sudo stands for Super User Do. It allows users to run programs with the security privileges of another user (if configured access permissions allow it), by default the superuser and is therefore prefi…
to identify and authenticate as a user to a computer system to gain access.
For questions pertaining to setting up or connecting to a WiFi hotspot.
Partitions are individual divisions of hard disk drives. Drives may be split up in to multiple partitions, so that they act as if many drives were connected.
Items referring to physical wiring. For question to the wiringPi library use the tag wiringPi.
Memory refers to the SDRAM (a kind of RAM) found on the Raspberry Pi.
Emulation is the process of setting up one machine to act like another. This normally involves setting up virtualizers or emulators.
Liquid Crystal Display. For questions regarding connection and control of small LCD displays.
Peripherals are devices connected to the Raspberry Pi, but external from it.