Alt-BEAM Archive
Message #00199
To: beam beam@corp.sgi.com
From: Richard Piotter richfile@rconnect.com
Date: Fri, 05 Feb 1999 12:31:44 -0600
Subject: [alt-beam] Re: 'Schmitt trigger'
I too wear that proud badge of heresy! It's a CPU right over my BEAM Badge! (:
I'm going to add a BASIC Stamp II on top of Quadrapod's controll hardware, which
includes a microcore, a routing circuit, and a controller board. I could have
ditched the controlelr board, since I'm adding the CPU, but i built it before I
ma the decision. It's still not final, but I'll be using a phone attached to a
walkiee talkie to send DTMF tones to the bot. There is a $26 DTMF decoder
circuit that outputs a 4 bit binary output to indicate which key was pressed.
I'll attach it to the BSII and it'll operate the PWM for the two servos that
control the head, and also send out the 5 walk commands (Stop, Go, Reverse,
Left, & Right). The BEAM stuff does the actual walking. I hope! It'd realy suck
for it to not work, but I've been throgh 4 revisions, followed every path, and
actualy built the PCBs. I now need to get chips for them and wire them together
with buttons, switches, LEDs, and a power supply. I want to try them out
immediately to find out if they are in good condition
--
> >Also for the record, I seem to recall that Tilden himself states that the
> >primary _usefulness_ of the microcore will be a result of the integration
> >of this type of circuit with conventional circuits
>
> I for one do not have a problem with that concept. That is basiclly what I
> meant when I said..." a CPU is not nessary to controll certian functions"
> Maybe the others did not understand me. I am not a "fanatic" although
> Zoz once pinned a Heretic badge on me...that I can live with. ;-)
>
> ScottyDogma
Richard Piotter
richfile@rconnect.com
The Richfiles Robotics & TI web page:
http://members.xoom.com/richfiles
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