Subject:
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RE: how many servos on handyboard?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 17 May 2000 14:11:50 GMT
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Original-From:
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Mar, Ericson <ERICSON.MAR@CSFB.COMantispam>
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Viewed:
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1055 times
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Remeber also that you have to cut the motor power trace and use an external
5V source for the motors in this case. The HB itself will output 9.6 V from
the motor ports.
> Ericson Mar
> Global Settlement Systems
> CREDIT | FIRST
> SUISSE | BOSTON
> 5 World Trade Center Phone: (212)322-1325
> New York, NY Pager: (888)778-1025, Skytel PIN:7781025
> Email : mailto:ericson.mar@csfb.com
> Skymail : mailto:7781025@skytel.com
>
>
>
>
>
> -----Original Message-----
> From: handyboard@media.mit.edu [SMTP:handyboard@media.mit.edu]
> Sent: Wednesday, May 17, 2000 1:29 AM
> To: lugnet.robotics.handyboard@lugnet.com
> Subject: Re: how many servos on handyboard?
>
> The base Handy Board is designed to control 4 DC motors.
>
> The DC motor output ports CAN be used to control 4 (four) stepper
> motors. Remember that a stepper motor needs a square wave pulse
> continually sent to the motor for operation, and the mark / space
> (time high / time low) pulse determines the position.
> So by writing code for the motor outputs, you can control 4 (four)
> stepper motors, (but YOU need to entire the code to do this).
>
> The expansion board has outputs to control servo's directly, but not
> having the expansion, I do not know about it.
>
>
>
> > I'd like to know how many servos the handy board can control. On the FAQ • it
> > says 2, in the documentation it says 4 DC motors. what's the deal? (am I
> > stupid? I'm new at this)
> >
> > also, when you plug an expansion board, do you get 6 EXTRA servos? or • those
> > are the only ones you can still use? How about the rest? do all imputs
> > remain free on the handyboard and everything on the expansion board is
> > extra? than you.
>
>
> Charles Hacker
> Lecturer in Electronics, Computing and Physics
> School of Engineering
> Griffith University - Gold Coast
> PMB 50 Gold Coast Mail Centre
> Southport Queensland 9726
> Australia.
> Email - C.Hacker@mailbox.gu.edu.au
> Ph. (07) 5594 8670
> Fax.(07) 5594 8065
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