Path: utzoo!attcan!uunet!lll-winken!ames!mailrus!tut.cis.ohio-state.edu!rutgers!cmcl2!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn )
Newsgroups: comp.sys.apple
Subject: Re: hardware
Message-ID: <9395@smoke.BRL.MIL>
Date: 16 Jan 89 15:50:54 GMT
References: <8901152335.aa11657@SMOKE.BRL.MIL>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 23

In article <8901152335.aa11657@SMOKE.BRL.MIL> POLKOSNI@QCVAX.BITNET writes:
>I am interested in doing some hardware projects with my enhanced Apple //e...is
>there anyone around who has had experience with the innards of a //e and can
>offer some suggestions? Maybe some DtoA conversion, AtoD conversion, maybe
>plans for homemade cards, interfacing with another microprocessor, anything
>interesting in general.

Your best bet is to look in really OLD computer hobbyist magazines
(pre-"A+").  Of course the technical reference manual for your Apple
would be valuable insofar as determining what all the signals are,
and what the peripheral slot addressing conventions are.

I don't know if it's still available (probably not, now that Apple
is "corporate"), but Apple used to sell a "Hobby/Prototyping Board"
(Product Code A2B0001X) that was useful for wiring your own
peripheral interfaces.  The documentation accompanying the board
explains the slot signals and I/O programming conventions, although
there are some newer additional conventions (found in various Apple
Technical Notes) that should also be followed for maximum utility.

A (British, I think, maybe "BSR") company used to, and perhaps still
does, market interfaces and remote sensors and controllers under the
designation "X10".  Real handy for automating your house..