Alt-BEAM Archive
Message #04910
To: beam@sgiblab.sgi.com
From: Bob Shannon bshannon@tiac.net
Date: Sun, 27 Jun 1999 15:10:40 -0400
Subject: [alt-beam] Re: photovores sensor prob
You know, all my photovores have the photodiode connected to the
same-side motor, and the tactile sensors connected to the opposite
side motor.
And this is using the photopopper circuit too. They move towards the light,
and away from obstacles.
Just how sure are we about this photodiode to opposite motor idea?
Jason Jones wrote:
> The Light sensors need to drive the opposite motor and the tactile sensors
> need to drive their respective motors. So, your left PD will drive the right
> motor, but the Left Tactile sensor will drive the Left motor. that way, when
> something hits the left side, the left side will accelerate, and turn away
> from the block.
> ---------------------------------------------------
> Herp World, LLC.
> 2064 West Ave. J Suite 392
> Lancaster, CA. 93536 USA
> http://www.herpworld.com
>
> -----Original Message-----
> From: Sharon Williams
> To: beam@sgiblab.sgi.com
> Date: Saturday, June 26, 1999 9:35 PM
> Subject: photovores sensor prob
>
> : I finished a photovore the other day, and it works very well, exept for
> :the tactile sensors. The bot seeks light perfectly, and aviods object
> :without even using the spring sensors ( must be the way I positioned the
> :PD's) anyway, the tactile sensors seem to have an opposing effect, it turns
> :toward the object!, I tried flipping the contact on the springs around,
> :still doesn't work properly, so I flipped them back. I am using the
> :photopopper circiut, with 680K resistors on the sensors. Any help?,
> :suggestions?
> : thanx,
> : Jeremy Williams.
> :
> :
> :
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