Dear Matthieu Baraban, [I thought I sent this a long time ago, but apparently this message has been gathering dust in my out box ...] I think I agree with Dale Botkin. The quick and easy way to do this is to hack the mouse, add some wires to the button switches, run the wires to your Big Buttons. As a bonus, the (small) buttons on the mouse still work normally. If you go ahead with the PIC solution, what are you going to do when you're in the middle of sending the "button down" message and a "mouse moved" message comes in from the mouse ? (I guess it would be harmless to ignore that one packet ...). Matthieu Baraban on 2001-05-17 07:39:44 AM asked: > I would like to build an interface ... > that could "simulate" clicks of the mouse (for an handicapped > person) > My goal is to have a box with 2 big buttons, between the mouse and the PC. > ---- --------- > | PC | | Buttons | ------- > | |-------| O O |----------- Mouse | > | | | | ------- > ---- --------- ... > And, another thing, is that I do not want to hack a mouse for removing its > buttons. Dale Botkin on 2001-05-17 08:19:18 AM responded, > Why not modify the mouse, solder wires to the button switches and add an > external box with big buttons? -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.