Posted by Just Michael on 11, 2000 at 5:38 PM:
In Reply to: Mouse -> Happs trackball hack posted by Gord Christmas on 11, 2000 at 5:17 PM:
: Every mouse that I have put my meter to has -5VDC running through it's veins. The trackball needs +5VDC. Will running the wires from the detector solder points on the mouse harm the +5VDC circuit on the Happs PCB's? I have ordered the OptiPAC, should be in next week, can't wait. My main reason for doing the mouse hack is for my own knowledge. I have seen several pages and it looks so easy, alas all my mices are cursed with negative voltage.
: Please enlighten, confused and annoyed.
: Gord.
You don't happen to have your probes switched around do you? This would cause a -5V reading instead of a +5V reading.