Time-lapse photography

Time-lapse photography

Time-lapse photography reveals exciting things about the world which you wouldn’t otherwise be able see. Things that happen too slowly for us to perceive: bread rising and plants growing; the clouds, sun, moon, and stars crossing the sky; shadows moving across the land. In this tutorial, we’ll be making a Raspbian-based device that lets you watch things that are too slow to observe with the naked eye. To do this, we will capture lots of still photographs and combine these frames into a video with FFmpeg/libav, which can then be accessed via a web browser. The full article can be found in The MagPi 39 and was written by James Singleton You’ll need Raspberry Pi Camera Module STEP-01 Connect the Camera Module First, connect the camera module to the Raspberry Pi with the included ribbon cable. Locate the correct socket; it’s on the top of the Raspberry Pi circuit board and is the one furthest away from the micro-USB power connector. The socket is handily labelled ‘CAMERA’ on the newer Raspberry Pi models. Lift up the outside of the socket to release the clamp, then insert the ribbon cable with the metal contacts facing towards the micro-USB power connector. Finally, hold the ribbon cable in position and push the outside of the socket back down to clamp the cable in place. STEP-02 Enable and test the camera Power the Raspberry Pi up. You now have a choice: boot to the command line, open a terminal window, or establish a secure shell (SSH) connection. Enable the camera by running this command from a terminal to launch the Raspberry Pi configuration tool:$sud†o raspi-configThen select the ‘Enable Camera’ option. You can test the camera by running the following command:raspistill -o testimage.jpgThe red LED on the camera module should light up for 5 seconds and a JPEG image will be saved to the current directory. If the camera is mounted upside down, then you can use the vertical and horizontal flip command-line switches (-vf and -hf). STEP-03 Install and configure software Install a web server to access your images remotely. Run this command to install Apache:$ su†do apt-get install apacŠhe2Remove the default page to see the contents of the directory:$ sud†o rm /var/www™™™/in†dex.hŠtmlVisit the IP address of your Pi (e.g. http://192.168.1.45 – you can find this by using ifconfig) and you should see an empty directory listing. If you run the following command and…
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