keller@uicsl.UUCP (07/01/84)
#N:uicsl:5800002:000:393 uicsl!keller Jun 30 16:33:00 1984 I bought a Lisa mouse at a computer store going-out-of-business sale today and I want to get the pin assignments and electrical specs on the mouse. At the store we plugged it into a Mac and it worked just like the Mac mouse. I suspect that the ][E mouse is identical. Could someone send me the info and if possible a pointer to an Apple technical spec? -Shaun Keller ...uiucdcs!uicsl!keller
bill@utastro.UUCP (William H. Jefferys) (07/05/84)
> I bought a Lisa mouse at a computer store going-out-of-business sale today > and I want to get the pin assignments and electrical specs on the mouse. > At the store we plugged it into a Mac and it worked just like the Mac mouse. > I suspect that the ][E mouse is identical. Yes, when my Mac mouse died, the dealer replaced it with a II+/IIe mouse. The most common failure mode is to lose one axis when its LED burns out. Why this happens, I have no idea. An LED ought to last a LONG time, but this has happened to quite a few people around here. -- Bill Jefferys 8-% Astronomy Dept, University of Texas, Austin TX 78712 (USnail) {allegra,ihnp4}!{ut-sally,noao}!utastro!bill (uucp) utastro!bill@ut-ngp (ARPANET)
keller@uicsl.UUCP (07/09/84)
#R:uicsl:5800002:uicsl:5800003:000:840 uicsl!keller Jul 8 21:03:00 1984 The day after I posted this message I found that the mouse pc card has labels on the back identifying the connector pins. The button, if I recall correctly, just grounds one of the pins. I will post the details soon. A friend of mine and I worked out a simple interface for a Hawley mechanical mouse that became free when we replaced it with an optical mouse on one of our Xerox Dandelion Lisp machines. It took about 5 chips to produce parallel binary out. I designed the circuit and my friend built it and modified his S100 Z80 system BIOS so that the mouse worked with Wordstar. I suspect that the Apple mouse has the same coding scheme. I'll post the details when I try it out. Since people have been having mouse problems I'm wondering if you can replace the LED and sensor easily. They seem to be plug-in components. -Shaun Keller