SSTV beacon based on a Raspberry Pi

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October 6th, 2013, 20:28 Posted By: wraggster

The Budapest hackerspace did some joint work with a local ham radio club and created anSSTV beacon housed inside a CCTV case that takes an image of its environment and transmits it using slow-scan television over ham bands.
As the title says, the build uses a Raspberry Pi to process the image taken from its camera and then transmits it over the air using a Ricofunk UHF transceiver with a main frequency of 433.425MHz. On the software side, PySSTV is used to convert images to frequency/time tuples, UNIXSSTV then creates the actual audio file and finally sox plays it. To avoid screwing up the Raspberry SD card, every part of the filsystem is either mounted in read-only mode (things like /home and /usr) or uses a ramdisk (things like /tmp and logs).
The plans, schematics and source code are available, so they hope that other hackerspaces will join the ranks!

http://hackaday.com/2013/10/06/sstv-...-raspberry-pi/

For more information and downloads, click here!

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