Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!apple!julius.cs.uiuc.edu!news.cs.indiana.edu!ariel.unm.edu!cie!jlavin From: jlavin@cie.uoregon.edu (Jeff Lavin) Newsgroups: comp.sys.amiga.hardware Subject: Re: Old Koala Pad Keywords: Koala Peripheral Message-ID: <1991Jan11.084540.28167@ariel.unm.edu> Date: 11 Jan 91 08:45:40 GMT References: <37819@cup.portal.com> <1991Jan10.144203.9203@javelin.es.com> Sender: Jeff Lavin Reply-To: jlavin@cie.UUCP (Jeff Lavin) Organization: The Puzzle Factory Lines: 47 In article <1991Jan10.144203.9203@javelin.es.com> blgardne%javelin@dsd.es.com writes: >thad@cup.portal.com (Thad P Floryan) writes: > >>peck@ral.rpi.edu (Joseph Peck) in writes: >> Does anyone have the pin-out specifications for a Koala Pad? >> It is a pressure sensitive drawing pad made for the old >> Atari computers. It was made by Koala Technologies Corp, and > >>Since some of the C64 peripherals (e.g. joysticks) work just fine on the >>Amiga, I would venture to guess you could just plug the Koala pad into the >>Amiga's joystick port and see what happens. The Koala "may" simply emulate >>a joystick. > >I don't know anything about the Atari 800 or C-64, but the Koala Pad I >had on my Apple IIe looked like an analog joystick to the system. So >anything that reads the pot inputs on the Amiga would be a good place >to start. I wouldn't be too surprised if you had to rearrange some of >the pins though. >-- >Blaine Gardner @ Evans & Sutherland 580 Arapeen Drive, SLC, Utah 84108 >blgardne%javelin@dsd.es.com ...dsd.es.com!javelin!blgardne (I hope) >{decwrl, utah-cs}!esunix!blgardne >DoD #0046 My other motorcycle is a Quadracer. BIX: blaine_g I don't know about the Apple ][ version, but the C64 Koala Pad can indeed be hooked up to the Amiga. No pin changes are required, but 1 resistor internally must be changed because of the different sampling rate on the Amiga. The pad looks like a proportional joystick, and a little driver to make it produce input events from port 1 was fairly simple. The only problem was that Intuition, prior to 2.0, went right to the hardware looking for mousebuttons for its gadgets and menus. Except for this irritation, I have had the pad working with DPaint III, and under Release 2.0, the buttons aren't a problem anymore. Works fine on the 3000, too! If anyone wants to post the code, send me a disk, and I'll send back the driver and a schematic. Please use email to get my USnail address. Jeff- The Puzzle Factory, Inc. | Jeff Lavin -- jlavin@cie.uoregon.edu Veneta, Oregon |------------------------------------- Voice : (503) 935-3709 | Remainder of signature line Data : (503) 935-7883 | under construction.