Raspberry Pi OpenCV Pan & Tilt Face Tracker Create your own face tracking, pan and tilt camera on the Raspberry Pi! This tutorial will demonstrate use of the OpenCV (computer vision) library to identify and track faces on the raspberry pi using two servos and a USB webcam. For the interested, I previously covered a more thorough overview of the installation of OpenCV from source here, however, I have found that the apt package is sufficient for all but the most bleeding edge of projects. This project is based on the OpenCV face tracking example that comes along with the source-based distribution. In short, it performs face detection using haar-like features to analyze the video frame, and locates any faces present within it. In the live video window, identified faces are surrounded with a red rectangle. Using the coordinates of the rectangle vertices, my script calculates the (X,Y) position of the center of the face. Hardware Parts needed: Assembly And here is how it looks all put together: Software Get the source.
Csound Journal Introduction Analog modular synthesizers and embedded systems are currently enjoying a large amount of attention due to the arrival of extremely cost effective and unbelievably powerful devices. This article will describe the process of building a Eurorack FM oscillator using Csound's foscili opcode. The module will have three potentiometers with associated control voltage inputs, 1/v per octave pitch tracking, a push button for powering down, and a push button which cycles through 4 possible portamento times. I. Eurorack The Eurorack modular synthesizer format was started by the German company Doepfer in 1995. II. About Arduino Arduino is an open-source micro-controller platform used by hobbyists and developers for prototyping and designing interactive tools, products, artworks and general household gizmos. DIY Arduino UNO A perk to Arduino's open-source philosophy is the freedom to build Arudinos yourself in your own preferred format. Figure 1. Control Voltage to Arduino Figure 2. III.
Raspberry Pi – Comment mettre à jour le firmware ? Quand on est l'heureux propriétaire d'un Raspberry Pi, on l'aime, on le bichonne et surtout on met à jour son firmware ! Mais comment faire ? Et bien c'est simple... Déjà pour connaitre votre version actuelle du firmware, entrez la commande suivante sur votre Raspberry Pi : /opt/vc/bin/vcgencmd version Maintenant, pour la mise à jour, Liam McLoughlin, alias Hexxeh a développé et mis en ligne sur son Github, un script baptisé rpi-update qui permet de faire cela très facilement. Edit : Notez que cette mise à jour est à éviter sur certaines distribs comme OpenElec. Avant toute chose, on va installer ce qui est nécessaire pour accéder à Github (car la commande Git est appelée dans le script) : sudo apt-get install ca-certificates git-core binutils Ensuite, on récupérer le script sudo wget On le copie dans le répertoire /usr/local/bin sudo cp rpi-update /usr/local/bin/rpi-update Puis on le rend exécutable sudo rpi-update Et voilà ! Source
Csound Journal Introduction The Raspberry Pi and the BeagleBone are two very popular computers about the size of a deck of cards. These so-called "tinyware" devices contain USB ports, onboard ethernet, and audio/visual output capabilities. Both devices use Linux as an operating system, which allows them to utilize a large array of programming languages and applications available on the Linux platform, including Csound. The goal of this article is to provide a brief introduction to using Csound on either one of these devices to create a real-time performance device. No prior experience is necessary with Linux, but some familiarity with basic Unix commands is recommended. It should be noted that while many concepts for running Csound on both the BeagleBone and the Raspberry Pi overlap (enough to warrant a joint article on the two devices), there are a few notable differences between them. For help in setting up the Raspberry Pi SD card, follow the link listed here: I. II. Installing Csound sudo reboot III.
Raspberry Pi Home Server – Raspbian – Installer un proxy avec Squid et accélérer votre navigation | Raspberry Pi Home Server Lorsque plusieurs personnes utilisent votre connexion, ça peut bouchonner. Surtout si chez vous il y a des fans de Pinterest, Facebook, etc. Les pages vont se rafraichir mais souvent avec des données communes. Et c’est là que Squid intervient. Squid va mettre en cache vos pages, vérifier si les données sont à jour, etc. Installer Squid sudo apt-get install squidSauvegarder le fichier de configuration standard cd /etc/squid/ sudo cp squid.conf squid.conf.originVous pouvez filtrer les lignes et enlever les lignes avec des commentaires. Pour une gestion de la configuration via une interface web, vous pouvez utiliser Webmin. Installer Webmin mkdir webmin cd webmin/ wget tar zxvf webmin-1.620.tar.gz cd webmin-1.620/ sudo . Vous pouvez maintenant vous connecter sur l’ip de votre Raspberry Pi sur le port 10000. Chez moi j’ai trouvé le point d’entrée dans le menu ‘Un-used Modules’ car la configuration par défaut n’est pas bonne.
Sonic Pi Raspberry Pi Disk Images IoT Head-To-Head: MIPS Creator CI20 Vs. Raspberry Pi 2 Featured On HP Global Partner Conference 2015 Coverage HP's annual Global Partner Conference is underway and there's plenty of buzz as the company will be split into fortune 50 companies later this year. Check in with CRN all week for news and analysis of the event.
Raspberry Pi 101 | Raspberry Pi IV Beginners Welcome to the “Raspberry Pi IV Beginners” site. When I started my YouTube channel I… read more Not a lot to say on this post. Was really great to get my Pi… read more Video guide Text Guide Project time : 20 minutes Required items : Raspberry Pi, Windows (XP… read more Fedora remix was the Raspberry Pi’s Linux distribution of choice near the launch of the Pi; it… read more Video Guide Text Guide Project time : 10 minutes Required items : Raspberry Pi, Router, Windows… read more Objective: Loading Debian “Squeeze” Desktop (GUI environment) Description: Debian Squeeze comes with a Desktop environment… read more Objective: Enabling SSH on Debian Description: SSH (secure shell) is used to securely remote in to… read more Text guide Objective: Swapping between OS’ Description: There are a few different distributions you can… read more The Prompt So the prompt is made up of two things. read more Objective: Learning useful commands.
Creating your first program | Raspberry Pi This project will show you how to create your first program using Python, the programming language for beginners. First of all we need to install the programming software Geany, we are using the Fedora operating system for this tutorial. In the Gnome system menu, go to Accessories and select Root Terminal. You may be asked to enter the root password to continue. We will now use the command terminal to download and then install the Geany programming software. In the command line type apt-get install python geany xterm and press enter to run the command. You will be told that the installation will use just over 9MB of storage space and you will be asked if you would like to continue. The installation of Geany is now complete, you may now close the terminal. Once Geany is open, click on the File menu and navigate to New (with Template) and select main.py this will now open a new Python file for us to create our program with. Within the second line of the code type Print.
RasPyPlayer, a simple media player for the Raspberry Pi !