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Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!cornell!uw-beaver!tektronix!reed!johnw
From: johnw@reed.UUCP (John Windberg)
Newsgroups: net.micro.6809
Subject: coco and robotics
Message-ID: <2260@reed.UUCP>
Date: Wed, 11-Dec-85 13:21:31 EST
Article-I.D.: reed.2260
Posted: Wed Dec 11 13:21:31 1985
Date-Received: Fri, 13-Dec-85 08:23:37 EST
Organization: Reed College, Portland, Oregon
Lines: 23


Greetings.
	I am new to this group and came here because I have a plan.
I would like to use the coco i picked up for robotics.
after studying the tech manual I descovered that there are pins at the
top and bottom of the cartridge port that seem to be unused, and that there
is a block of ram marked unused.  My goal is to create something that will
use the otherwise unused part of the coco to control 8 relays and read
8 switches without making the computer unable to use any of its capabilities.
For example.
extending the cartridge port so that packs still fit in, but the pins i
need are used.  So that the robot can walk into a room, you can plug in
a cartridge and it will still work.  
Something like interfacer-80 by alpha for the mod iii would be ideal.
low budget and something i can build myself are considerations.

thanks in advance for any info 

John B. Windberg
Reed College box 736
Portland Or 97202
503-235-4112
johnw@reed