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Discussion Groups | M68HC11 | DC motor control

Technical discussions about Freescale Microcontrollers: M68HC11. (Freescale Semiconductor is a Subsidiary of Motorola).

DC motor control - Pratik Patel - Jul 25 11:19:08 2006

hello there

i am required to build 1 robot using 68hc11e9 for educational purpose
and that purpose is to push rectangular box out of arena and than have
a fight with other robots.

i'm looking for some help to control 4 motors through and also how to
minimise the code.

if possible can i have some hint on how to control DC morots? i will
be required all motions forward and backward.

for sensing purpose i am also required to use sensors but i have never
used sensors with this microcontroler. so can i have some help for that.

thanks and sorry for asking these much help.



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Re: DC motor control - Mike McCarty - Jul 25 12:09:56 2006

Pratik Patel wrote:
> hello there
>
> i am required to build 1 robot using 68hc11e9 for educational purpose
> and that purpose is to push rectangular box out of arena and than have
> a fight with other robots.
>
> i'm looking for some help to control 4 motors through and also how to
> minimise the code.
>
> if possible can i have some hint on how to control DC morots? i will
> be required all motions forward and backward.

Look into "H Bridge".

Google for

robot motor control circuit

turned up over one million hits.

>
> for sensing purpose i am also required to use sensors but i have never
> used sensors with this microcontroler. so can i have some help for that.

Microswitches with wire "feelers" work well. What are you trying to
sense?

> thanks and sorry for asking these much help.

Try doing some work on your own, and come back with questions
when you get stuck.

Mike
--
p="p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);}
This message made from 100% recycled bits.
You have found the bank of Larn.
I can explain it for you, but I can't understand it for you.
I speak only for myself, and I am unanimous in that!




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