🚀 go-pugleaf

Well, here is how to connect a Microsoft Mouse to an Atari ST.  (520/1040)
The Atari has a 9-pin D-type connector.  The Microsoft Mouse has a rather
strange connector on the end.  To prevent having to cut the mouse cable up,
I made this adaptor.  If you still can't follow it, please let me know and
I'll try to redescribe it.  This does work for me.  I've been using it for
6 or so months now with no problems at all.  It does take some soldering
skills, so if you're not so hot at soldering, find a friend to help.

As far as I know, this does not effect your Atari's warranty.  However, I
have not asked Atari. :-)

Atari ST	Microsoft Mouse			ST expected signal
----- --	--------- -----                 -- -------- ------
1		5				XB
2		3				XA
3		8				YA
4		9				YB
5		N/C				N/C
6		2				Left button
7		N/C				+5VDC (N/C)
8*		6 and also tie to pin 1		Ground
9		7				Right button

* = I am not sure why I have pins 6 & 1 tied together, but it does work.

The Microsoft mouse connector looks like this.  This is the solder side,
with the leads pointing up.

  ---------------
  |     1       |
  |  2 3 4 5    |
  | 6 7 8 9 10  |
  |             |
  ---------------


  If you can not use the connector, the pins are numbered as follows.  This
  is the connector side from the Microsoft Mouse plug:


	  /------------\	This is a view at the front of the connector.
	 / Blank "KEY"  \	It is where the plug from the mouse would be.
	/----------------\	The pin labeled 'n' is not connected.
	| n   4   X   8  |	The place labeled 'X' is filled, and does not
	| 9   7   1   2  |	have a pin.
	|     5   6      |
	 \              /
	  \------------/ 


Have fun!

	Jeff

--
Jeff Beadles
jeff@quark.WV.TEK.COM