Ham keyer and the Mac ADB

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Article #38810

#38810

From: John Kingdon
Date: Mon, 06 Mar 1989 02:10

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hook it up via the ADB of a Mac SE so when I key down it triggers a "click"
for a MouseEvent.  I will then use Telegraph DA to help me with learning morse
code on a "real" keyer instead of the mouse.
	Does anyone think there is more circutry than merely the switch
involved in this project.  I can get the pinouts from Apple Tech notes, but I
am not familiar with the Apple ADB enough to know if there is some need for a
resistor or IC somewhere.
	Please email your response to me.
Thanks in advance
John Kingdon
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!columbia!cunixc!kingdon
From: kingdon@cunixc.cc.columbia.edu (John Kingdon)
Newsgroups: comp.sys.mac,rec.ham-radio
Subject: Ham keyer and the Mac ADB
Keywords: homebrew keyer, macintosh, adb
Message-ID: <1264@cunixc.cc.columbia.edu>
Date: 6 Mar 89 02:10:52 GMT
Reply-To: kingdon@cunixc.cc.columbia.edu (John Kingdon)
Distribution: usa
Organization: Columbia University
Lines: 14