💾 Archived View for mirrors.apple2.org.za › archive › apple.cabi.net › FAQs.and.INFO › CPUandMore › … captured on 2023-05-24 at 23:45:28.
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Path: news1.icaen!news.uiowa.edu!news.physics.uiowa.edu!math.ohio-state.edu!howland.erols.net!feed1.news.erols.com!phase2.worldnet.att.net!uunet!in1.uu.net!news.emi.com!usenet From: drsmooth@relex.com (Edhel Iaur, Esq.) Newsgroups: comp.sys.apple2 Subject: Re: Interfacing the Apple // to External devices Date: Tue, 26 Nov 1996 01:04:07 GMT Organization: US-A2WUG Lines: 30 Message-ID: <57dfor$3l3@news.emi.com> References: <3298A07A.2C7C@usfca.edu> Reply-To: drsmooth@relex.com NNTP-Posting-Host: slip12.relex.com X-Newsreader: Forte Free Agent 1.0.82 Matt McDonald <mcdonaldm@usfca.edu> wrote: >Has anone tried interfacing their Apple // to external devices, such as >motors for robotics experiments, and such? I am interested in attempting >this, and wondered if any others have any advice... The first things to try is the following (use relays & external power if 3.5V ain't enough): Poke -16296,1 Clear game I/O AN0 output (OFF-3.5V HIGH) Poke -16295,0 Set game I/O AN0 output (ON-.3V LOW) Poke -16294,1 Clear game I/O AN1 output (OFF-3.5V HIGH) Poke -16293,0 Set game I/O AN1 output (ON-.3V LOW) Poke -16292,1 Clear game I/O AN2 output (OFF-3.5V HIGH) Poke -16291,0 Set game I/O AN2 output (ON-.3V LOW) Poke -16290,1 Clear game I/O AN3 output (OFF-3.5V HIGH) Poke -16289,0 Set game I/O AN3 output (ON-.3V LOW) These correspond to some pins on the internal 16-pin joystick socket near the right-rear. I forgot which ones; sorry. If you're interested, someone (or maybe I) can find out which pins go where. -- | / / />___________________ +==Apple // Forever==+ |___ _____ M#M#M#||___________________---__ +-37th Wisest Wizard-+ | \ \ / #M#M#M||___________________--- +- Edhel Iaur, Esq. -+ | / / \_/ \> http://www.wco.com/~3d5d1wsw/US-A2WUG/FOUNDING.MEMBERS/HOME.PAGES/EDHEL