U77,5 - a set of USB sound / DCF77 tools

U77,5 is an open-source project under the GNU Lesser Public License

Decoding the German DCF77 time signal per USB sound card and a receiver module, setting the system time. "U" stands for USB and "77,5" for the full 77.5 kHz frequency of the time signal.

Sites

Homepage of project: http://u775.sourceforge.net (this site)
Project page on SourceForge: http://sourceforge.net/projects/u775

Assembly Layout

Full partlist available from the German online shop http://www.conrad.de

994000-62 SpeedLink USB 2.0 Mini-Soundkarte
641138-62 DCF Empfängerplatine
468266-62 EL Kondensator 47 µF 25 V

No Warranty

Like explained in Lesser GPL you get no warranty at all. We are not responsible for anything, even if you damage your hardware. You should know that we experimented - not knowing what we do. We are just lucky that it works for us.

Good Luck!

Links

http://de.wikipedia.org/wiki/DCF77
http://en.wikipedia.org/wiki/DCF77

Other projects of the authors:

D.U.M.A. - Detect Unintended Memory Access an library to detect buffer overruns and underruns
Klötzle is a stop motion animation program
The Wc-lib is a library to use (mainly) webcams under Linux with the Ruby programing language

Contact

Comments, suggestions and bug-reports go to
Hayati Aygün <h_ayguen()web!de>
Detlef Reichl <detlef!reichl()gmx!org>

Thanks to SourceForge for hosting!