maybe this discussion is interesting - http://arduino.cc/forum/index.php/topic,97202.msg729425.html#msg729425 -
involves some high speed measurements for a tachometer. Not the same but a usefull technique.
maybe this discussion is interesting - http://arduino.cc/forum/index.php/topic,97202.msg729425.html#msg729425 -
involves some high speed measurements for a tachometer. Not the same but a usefull technique.