Andrew Warren wrote:

>     Steve:  I was imagining a system in which continuous reception of
>     the signal was necessary in order for the thing to keep moving.
>     To stop it, you'd simply stop sending the signal.
>
>     John:  Since motion in an arc can be achieved (at low speeds,
>     anyway) by a series of rotations and straight-line translations,
>     you don't necessarily need to allow one motor to be stopped while
>     the other turns.
>
>     Nevertheless, you're both right... For the most flexibility and
>     easiest implementation, four bits should be used.
>
>     -Andy

Unless its a plane (or a canary.. :-) !

--
Eric van Es               | Cape Town, South Africa
mailto:vanes@ilink.nis.za | http://www.nis.za/~vanes
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