A cheap ( less than 2 $ ) chip is BA6209, interfacing to pic at:
http://www.geocities.com/vsurducan/auto.htm
Cheers, Vasile

On Thu, 28 Jun 2001, Edson Brusque wrote:

> Hello,
>
>     I'm making a circuit that needs to drive a DC motor in both directions.
> I think I'll need four transistors (bipolar, FET or IGBT?) so I can reverse
> the voltage being sent to the motor. I'll need two PIC pins to control the
> motor. One pin high would make it turn one direction. Another pin high would
> make it turn other direction. Both pins high, BigBang.
>
>     Would someone give me some sugestions? I want to have the circuit really
> simple and cost conscious. Some circuits or points on the web to where I can
> find something usefull would be very helpfull as I don't have much time to
> make a presentation of this project to the client.
>
>     Thank you very much,
>
>     Brusque
>
> -----------------------------------
> Edson Brusque
> Research and Development
> C.I.Tronics Lighting Designers Ltda
> (47) 323-2138  /  (47) 9993-6453
> Blumenau  -  SC  -  Brazil
> www.citronics.com.br
> -----------------------------------
>
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