This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Vernier software publishes a book called "How to Build a Better Mousetrap" which contains 14 hardware projects for the Apple II. Project #6 is a temperature probe connected to PDL0. ISBN for the book is 0-918731-16-X. Vernier Software ( http://www.vernier.com ) 2920 S.W. 89th Street Portland, Oregon 97225 USA (503) 297-5317 By: Paul Guertin ---------------------------- By: Sheldon Simms A good book is Inside The Apple IIe by Gary B. Little. It isn't a project book, but it does have a good chapter on using the Game I/O connector for "electronics experiments."
 
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