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From: qig@mentor.cc.purdue.edu (The Insane Hermit)
Newsgroups: comp.sys.apple
Subject: Re: Apple II interfacing help needed
Keywords: ttl apple2 interface science
Message-ID: <8960@mentor.cc.purdue.edu>
Date: 28 Mar 90 14:09:18 GMT
References: <1990Mar27.193210.13984@cec1.wustl.edu>
Reply-To: qig@mentor.cc.purdue.edu (The Insane Hermit)
Distribution: comp.sys.apple2
Organization: Purdue University
Lines: 22


	Ok I can see a few ideas I might have for you.  The easiest way to get
things into the apple is through the joystic port.  You can use the standard
one on the back of the case or else use the socket on the mother board though I
have no idea how to access that one.  Some good things about using the joyport
are you can read it easily from apple's basic bot prodos and splesoft versions.
If you need an A/D converter it is already built for you.  If you don't need 
the A/D converters then just use the pins for the joystick button.  These can 
be read by peekign the proper location in memory.  The A/D converters can be 
accessed through pdl() from apple soft if you use the main connector on the 
back.  If you wish more information mail me back with more details of what you
plan to do on the computer end.  I know nothing of geiger counters and such
stuff but bit's and bytes I can help you with possibly.


						The Insane Hermit
						The Zip-Man
						qig@mentor.cc.purdue.edu
						Chris Eleveld

p.s. I would have mailed this but it bounced.  I hope this is helpful.  And as I
	said if you need more details mail me.