1)   attach a small DC motor to your motor.  voltage polarity from DC
motor will change when direction changes.  (use small DC motor as
generator.
2)   Use hall effect sensor and little magnets   (north/south detection
will reverse when direction reverses.
3)    put a cog on the shaft which pushes a whisker wire attached to a
switch (or opto interupter) one way when rotating CCW and the other way
when rotating CW.

Gus
--
Gus Calabrese    Lola Montes      WFT Electronics
4337 Raleigh Street      Denver, CO 80212
303 964-9670......voicemail      wft@frii.com   http://www.frii.com/~wft

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