Hi,

I have a weird idea on how to decode dtmf tones.  It may work but then again it may not.

1. sample a tone to record it (@ 4kc sample rate or something).
2. then store it.  
3. then compare it to 'known' samples (samples taken during calibration of pic/eeprom with identification(1,2,3,4,5, etc).
4. if it does not match rotate the bits and try again going to step 3 until we get a match(or until we run out of samples)
5. return with the tone number(1,2,3,4,5,etc) in W.

Think this will work or is it just a foolish idea?


CYA!
Andy K.

Amateur Radio Callsign: N1YEW