Alt-BEAM Archive
Message #12478
To: beam@sgiblab.sgi.com
From: Bruce Robinson Bruce_Robinson@telus.net
Date: Fri, 24 Mar 2000 18:39:28 -0800
Subject: [alt-beam] Re: Beamant motor drivers
BUDSCOTT@aol.com wrote:
>
> ... I've got those cool RM-1 motors hooked up to 'em and a
> ALS245 motor driver doin the leg work for the unicore.
> ... however, it does not spin the motors, i'll unplug the
> buffer chip and add in leds in place and it works fine, but
> as soon as i stick that chip in and have it run to the motors,
> it just plain doesn't work!
Output is enabled (pin 19 to GND), right?
How about the direction (pin 1)?
Pin 1 = high, data goes from A side to B side (B = output).
Pin 1 = low, data goes from B side to A side (A = output).
"A" side is pins 2 through 9; "B" side is pins 18 through 11.
Those are the most likely problems.
Bruce
12479 Fri, 24 Mar 2000 21:35:58 EST [alt-beam] 2 new bots beam@sgiblab.sgi.com JVernonM@aol.com Hey all,
I finally got the time to finish and post two more bots. The links on the
walker page are working now. You'll find a two motor with 1DOF head and a
modified toy. More tutorials and bots coming soon. I just got a bunch of the
PortEscap motors, type A and B, so watch out for some great solar powered
bots to come.
See ya,
Jim
http://www.geocities.com/SoHo/Exhibit/8281/beamart.html
ICQ# 55657870
12480 Fri, 24 Mar 2000 20:55:27 -0600 [alt-beam] Re: BEAMant {fin} beam@sgiblab.sgi.com Richard Piotter You got a page with the exact circuit you used (part values, types of
motors, etc?) Very interesting circuit. I'm working with it myself.
BUDSCOTT@aol.com wrote:
>
> Found out the problem with my Unicore, not enough voltage, o well. So i
> rigged up a 3 AAA battery 'gulp' power supply to it and man alive! this
> sucker bolts! it's demanding presents is anounced by a loud noise caused by
> it whiping back and forth. So my opinion is that if you have made all sorts
> of robots and haven't made a unicore circuit yet, do it! it has the coolest
> behavour of all phototrophs. i think i'm gonna name it Silverfish, cause it
> looks remotely like a silverfish (the insect). C'ya
>
> -Spencer
--
Richard Piotter The Richfiles Robotics & TI web page:
richfile@rconnect.com http://richfiles.calc.org
-- Make Money by Simply Surfing the Net or responding to E-Mail!!!
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12481 Fri, 24 Mar 2000 23:52:02 -0400 [alt-beam] Re: what begins with g and makes beamers go crazy.... alt-beam@egroups.com michael.hirtle@ns.sympatico.ca (Michael Hirtle) Your link doesn't work
David Perry wrote:
> gearmotors of course.
> I was thinking to myself - do i release this great site with loads and loads
> of great surplus gearmotors at lowish prices - or do i sit on them and buy
> them all up...
> Ahh what the heck - check out
> http://www.aaaim.com/cgi-local/shop991/shop.pl/SID=361417090965/page=DCGM.ht
> m
>
> Have fun :)
>
> David
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