Raspberry pi what does pi stand for

Broadcom has been very understanding and very supportive of the Raspberry Pi. I was involved in the team that produced the chip that went into the Raspberry Pi and we're now thinking about what chips we're going to have in years time. So that's my day job and Broadcom has been very understanding about allowing me to devote a little bit of attention to Raspberry Pi at least for now. TS: Is it part of your plans to go full time into the foundation in the near future?

Not really. I have this fantastic job with Broadcom. Part of our story with the Raspberry Pi is that we want to give children access to engineering, because engineering is enormously good fun. But I always thought of this the other way around, that actually it's about the kids themselves.

We're not necessarily doing this to help Britain be competitive. We're doing this because engineering is an enormously fun thing to do and it's sad that children don't have access to this fun thing. So my day job is enormously good fun. I do engineering everyday and I get paid for it.

I have no real desire to step away from that and do foundation stuff all the time. There's going to be a balance between the two. I'm a ThinkPad guy. Day to day I use a ThinkPad X So I've always been a ThinkPad guy. TS: Do you think going as a non-profit has opened more doors than if you had started a private enterprise? I don't believe that there was any way that we could have done this as a commercial venture. You're generating all this value and none of it is going to your wallet.

But in practice actually it's fantastic. It's very helpful when you're approaching component suppliers for them to realize that you're not trying to just make a quick buck or load your own pocket, but rather that you are doing this for charity.

That's part of the reason why people have been very understanding and prepared to sell us relatively low quantities of a certain component. We produced 10, units of the Raspberry Pi on our first run, which is a tiny number by consumer electronic standards, yet our suppliers were very prepared to deal with us because they knew that we weren't trying to make a quick buck. To be honest a lot of us who are involved in the foundation have done entrepreneurial stuff before and have had some success, so it's very nice just this once have it not be about making money but rather for doing something good for other people.

Raspberry is a reference to a fruit naming tradition in the old days of microcomputers. A lot of computer companies were named after fruit.

Pi is because originally we were going to produce a computer that could only really run Python. So the Pi in there is for Python. It does not include peripherals such as keyboards and mice or cases. However, some accessories have been included in several official and unofficial bundles. The organisation behind the Raspberry Pi consists of two arms. The first two models were developed by the Raspberry Pi Foundation. Raspberry Pi Trading is responsible for developing the technology while the Foundation is an educational charity to promote the teaching of basic computer science in schools and in developing countries.

According to the Raspberry Pi Foundation, more than 5 million Raspberry Pis were sold by February , making it the best-selling British computer. By November they had sold 11 million units, and In July , sales reached nearly 15 million. In March , sales reached 19 million. Most Pis are made in a Sony factory in Pencoed, Wales. Some are made in China and Japan. The numerical value of raspberry pi in Pythagorean Numerology is: 3. We're doing our best to make sure our content is useful, accurate and safe.

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Term » Definition. Word in Definition. Wikipedia 0. Go ahead and open a Terminal window and type:. Next, upgrade all your installed packages to their latest versions with the following command:. Note that full-upgrade is used in preference to a simple upgrade , as it also picks up any dependency changes that may have been made.

Generally speaking, doing this regularly will keep your installation up to date for the particular major Raspberry Pi OS release you are using e. It will not update from one major release to another, for example, Stretch to Buster or Buster to Bullseye.

However, there are occasional changes made in the Raspberry Pi OS image that require manual intervention, for example a newly introduced package. These are not installed with an upgrade, as this command only updates the packages you already have installed. If moving an existing SD card to a new Raspberry Pi model for example the Pi Zero 2 W , you may also need to update the kernel and the firmware first using the instructions above.

When running sudo apt full-upgrade , it will show how much data will be downloaded and how much space it will take up on the SD card. Also be aware that downloaded package files. You can remove these in order to free up space with sudo apt clean sudo apt-get clean in older releases of apt.

The previous version was based on Buster. You can search the archives for a package with a given keyword with apt-cache search :. You can view more information about a package before installing it with apt-cache show :. Typing this command should inform the user how much disk space the package will take up and asks for confirmation of the package installation. Entering Y or just pressing Enter , as yes is the default action will allow the installation to occur.

This can be bypassed by adding the -y flag to the command:. You can also choose to completely remove the package and its associated configuration files with apt purge :. The rpi-update script is supplied by a third party, "Hexxeh", and also supported by Raspberry Pi engineers. It will then install these files to relevant locations on the SD card, overwriting any previous versions. This repository simply contains a subset of the data from the official firmware repository , as not all the data from that repo is required.

If you are sure that you need to use rpi-update , it is advisable to take a backup of your current system first as running rpi-update could result in a non-booting system. Once the update is complete you will need to reboot.

If you have done an rpi-update and things are not working as you wish, if your Raspberry Pi is still bootable you can return to the stable release using:. If you are running Bullseye, VLC is now the recommended alternative. This is hardware accelerated, and can play back many popular audio and video file formats. The media file can be audio or video or both.

For the examples below, we used an H video file that is included with the standard Raspberry Pi OS installation. By default the audio is sent to the analog port.

When displaying video, the whole display will be used as output. You can specify which part of the display you want the video to be on using the window option. You can also specify which part of the video you want to be displayed: this is called a crop window.

This portion of the video will be scaled up to match the display, unless you also use the window option. If you are using the Raspberry Pi Touch Display , and you want to use it for video output, use the display option to specify which display to use.

To play an MP3 file, navigate to the location of the. This will play the audio file example. If you cannot hear anything, make sure your headphones or speakers are connected correctly. To play a video, navigate to the location of your video file in the terminal using cd , then type the following command:.

To play it enter the following command into a terminal window:. This is easily done using ffmpeg. Playback is also improved if VLC is run full screen; either select fullscreen from the user interface, or you can add the --fullscreen options to the vlc command line. This example command converts video. There are a number of options available during playback, actioned by pressing the appropriate key.

Not all options will be available on all files. The list of key bindings can be displayed using omxplayer --keys :. You can then check the status of this background job using the jobs command. By default, the job will complete when omxplayer finishes playing, but if necessary, you can stop it at any point using the kill command.

If you are not using the default pi user account, you need to add your username to the video group, otherwise you will see 'permission denied' errors. To check that the user has been added to the group correctly, use the groups command. Enter the command fswebcam followed by a filename and a picture will be taken using the webcam, and saved to the filename specified:.

The webcam used in this example has a resolution of x so to specify the resolution I want the image to be taken at, use the -r flag:. You can write a Bash script which takes a picture with the webcam.

This script will take a picture and name the file with a timestamp. Say we saved it as webcam. You can use cron to schedule taking a picture at a given interval, such as every minute to capture a time-lapse.

This will either ask which editor you would like to use, or open in your default editor. Once you have the file open in an editor, add the following line to schedule taking a picture every minute referring to the Bash script from above :. Ensure your script does not save each picture taken with the same filename. This will overwrite the picture each time. Mode is one of the modes returned from the -m, --modes option. The optional P parameter can be used to specify progressive mode. Save the current EDID to the specified filename.

When used in combination with the --modes options, displays the mode information in JSON format. You can find source code for the vcgencmd utility on Github. To get a list of all commands which vcgencmd supports, use vcgencmd commands.

Some useful commands and their required parameters are listed below. Displays the enabled and detected state of the Raspberry Pi camera: 1 means yes, 0 means no.

Whilst all firmware except cutdown versions support the camera, this support needs to be enabled by using raspi-config. Returns the throttled state of the system. This is a bit pattern - a bit being set indicates the following meanings:.

These are 32 bit values, indexed from 8 to See the OTP bits page for more details. Display value of the configuration setting specified: alternatively, specify either int integer or str string to see all configuration items of the given type. For example:. Note that on devices with more than 1GB of memory the arm parameter will always return 1GB minus the gpu memory value, since the GPU firmware is only aware of the first 1GB of memory. Those highlighted currently require a paid for licence see the this config.