On Sat, 2005-03-05 at 19:04 -0800, Stephen R Phillips wrote: > I used my scope in differential and AC mode. The problem is how do you > interpret the signal? Each 'click' is a commutation segment? If the > comutator has 3 segments then multiply the period by 3? Is it the same > for say ones with 17 13 7 or 5 segments? Each motor design will be different, so you will have to check the particular motor being used. TTYL ----------------------------- Herbert's PIC Stuff: http://repatch.dyndns.org:8383/pic_stuff/ -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist