On Tue, Feb 2, 2010 at 9:42 AM, ivp wrote: > > Another way would be to simply count pulses for 1 minute. So if after > 1 minute (based on a timer) there have been 2600 pulses counted, then > that's 1300rpm. Or after 10s there've been 260 pulses counted, then .... > > Or you can count pulses for 0.9375s and multiply by 32 if that is easier John La Rooy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist