RasPi Magazine 06 2015, Raspberry PI, RasPI - Magazyn 2015

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//-->ESIGNDUILDBCODEGet hands-on with your Raspberry Pi665PAGESOF PIProgramMinecraft PiPlusWelcomeHappy new year, everyone!We’re kicking off 2015 witha masterclass in one of themost popular add-ons for theRaspberry Pi – the camera module. DaveJones, creator of the fantastic picameralibrary, shows us how to use his library toproperly control your camera, even down tothings like capturing motion and creating ringbuffers to ensure you don’t miss a trick. Andas well as revisiting a couple of last year’sprojects, we thought we’d dig deep into theworld of Minecraft Pi and show you how tomanipulate it using scripts – especially nowthat this hack-focused edition of the gamecomes pre-installed on all new versions ofenRaspbian. Enjoy the issue – and have fun!fun!Get inspiredDiscover the RasPicommunity’s best projectsExpert adviceGot a question? Get in touchand we’ll give you a handEasy-to-followguidesLearn to make and codegadgets with Raspberry PiDeputy EditorFrom the makers ofJoin the conversation at…www.twitter.com/linuxusermagwww twittercom/linuxusermag@linuxusermaghttpshttps://www.facebook.com/LinuxUserUKhttps //f b k/LiLiLinux U & DeveloperUser D lRasPRasPi@imagine-publishing.co.ukRasPPi@iibli hikRasPi@imagine pRasPi@imagine-publishing.co.ukContentsMaster the camera moduleMotion detection and a time-travel camcorderBrickPi Bookreader 2Turn pages without lifting a fingerUpgrade your BigTrakYou can drive it – now fire its rocket launcherWhat is the Raspberry Pi Compute Module?Find out how this stick compares to the full boardWrite scripts for Minecraft PiManipulate co-ordinates and auto-generate blocksLooking at the world a different wayRead inputs from GPIO pins and trigger functionsTalking PiYour questions answered and your opinions sharedMaster the camera modulewith the picamera libraryDave Jones walks us through how to set up and use hispure Python Raspberry Pi camera library“We’regoing tobuild a camcorderthat stores the last 30seconds’ worth of video”The picamera library is a Python librarypermitting easy control of the Raspberry Pi’scamera module. It was originally createdto provide a cleaner method of controlling the camerathan running the raspistill and raspivid command-lineapplications from within scripts. Since featuring on theRaspberry Pi homepage, the library has seen severalthousand downloads and (naturally) a few bug reports –though as of release 1.2, these should all be fixed!The library has already played a role in a number offascinating projects, including time-lapse videos, motion-sensing security cameras, stop-motion animation, andeven a handheld digital camera with Dropbox integrationcontrolled by a touch screen. In this article we’ll walkthrough installing and using the Raspberry Pi’s cameramodule via picamera, including the fundamentals of twoof the aforementioned projects: time-lapse videos and amotion-sensing security camera.This article assumes you are using the RaspbianLinux distribution on your Pi, and that you are runningthe X Window environment(startx after logging in),although picamera workshappily on any Pi-relatedLinux distro (Arch, Pidora,etc) and doesn’t requirea graphical environment,even for the camera’spreview. It is also assumedyou have successfully setup your camera moduleand tested it with one ofthe raspistill or raspividapplications.“Time-lapsevideos, motion-sensingcameras,stop-motionanimation, evena handhelddigital camera”BelowIf you need ahand setting up yourcamera module,check out the guide inissue 2 ofRasPi [ Pobierz całość w formacie PDF ]

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