On Wednesday 07 January 2004 18:24, you wrote: > Yeah, these things can be bought cheap, the point is to have fun improving > it! (as you well know) > > > -- Lawrence Lile uhm, as a side note, the thing I intend to build is primarily a metronome and has the tuning feature as an improvement :o) Of course, it would be interesting to add a freqmixer and a freq-to-voltage converter to do some neat "the BPM is 130 and your piano is 4.52 Hz wrong" (and with a DTMF chip "should I call the piano tuner yes/no" or with a modified accu drill, directly adjust the snares ) but that's not what I originally intended. Heck, I dont even have a piano. But I would like to have an accurate reference frequency... Thanks for thinking, all. Koen -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads