Alt-BEAM Archive

Message #13100



To: beam@sgiblab.sgi.com
From: Bruce Robinson Bruce_Robinson@telus.net
Date: Thu, 06 Apr 2000 22:30:50 -0700
Subject: Re: Quadcore, and websites.


Chris wrote:
>
> What happened to miller's page? And BEAM robotics.com, it hasn't
> been updated in MONTHS!!!!!. I need a microcore tutorial ...

BEAM evolves. People leave and new people join. Work intrudes. Etc.

Anyway, Andrew Miller's tutorial has been moved (a couple of times).
Take a look at the BEAM Web Index, go to the Walker page, and right at
the top of the 2-motor walker section, you'll find the current link to
Andrew's tutorial.

http://www3.telus.net/rfws/bwi/

Regards,
Bruce



13101 Thu, 06 Apr 2000 22:23:08 -0700 Re: WCRG? beam@sgiblab.sgi.com Bruce Robinson Korus wrote:
>
> Hey everyone,
>
> I'm just wondering.. How many people on the list are planning on going to
> the Western Canadian Robot Games in June?

I'll be there, barring unforseen circumstances.

Bruce



13102 Thu, 6 Apr 2000 22:38:04 -0700 microcore question "rw" Yes, yes, newbie question..go ahead and flame me :o)

I made a microcore, with the 74c14 (or whatever the name) chip. I put in
LEDs as the shown in the schematic (I forget which web site it was, but it
was a hand-drawn schematic).

When I put power to it, the LEDs just stay constantly lit. Not even using
the shorting-switches does anything.

Anybody know what some possible problems are with this symptom? I need some
help, 'cause everything I've tried hasn't worked, and it's getting a bit
discouraging!



--another question is this: Does the 74c14 chip act as "analog" or as
"digital"?? I had thought that chips were *always* digital, but since the
big thing in BEAM is often making analog devices, I'm assuming my original
assumption was incorrect...

And if it's not too big a question, what exactly does a "Schmitt inverter"
*DO*, anyway?

--ryan

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