I'm Back.. more MOuse/Trackball hack "?'s"

[Renegade1]

 
 Hey guys,

  thanks for your help so far, I now have the mouse/trackball hooked up and I am having some problems and need alittle help.

   OK I have included a pic on how I have it wired to make sure that this is correct, as in the ground, Y1,Y2, trackball to mouse connections are correct.

   I had it connected to the computer and I can not get a signal from the trackball.  I remote mounted the mouse buttons and they work so I know windows is reading the mouse.

  I have tried swapping the 5+ and Grd wires, the Y1 and Y2 wires, with and with out the resistors and no luck. Nothing I do allows a response from the trackball.

  So if I do have the basic wiring correctly mounted then I am guessing this mouse won't work with the trackball hack or my trackball pickups are junk (anyone know of a way to check the trackball pickups?)

  I have wired houses, garages and cars, but nothing this small that dealt with resistors.

 Also I don't know if this is of importance but if I read the connections between the 5+ and say Y1 first, it will read 2.2 between the resistor which is the resistors I used (2.2k) but the other 5+ and Y2  will read -10.25, Now if I power down the computer and restart and read the 5+ and Y2 first then that one will read 2.2 ohms and the other 5+ and Y1 will then read -10.25.  It just depends on which connection I read first.

  I may have a bunch of junk info in here but I figured better to have to much then no enough.


 P.S. the mouse is a 7 dollar walmart micro innovations  PS/2 mouse

  Thanks Guys!

 Renegade  

[Chris]

What kind of trackball is this?  My Happ trackball hack didn't require any resistors...

Some trackballs draw a lot of power... you may want to try sourcing your 5V from a different source, like a hard drive power connector, or tap into it where the mouse cable hits the mouse board and not from the center pin of the receiver.

--Chris

[SirPeale]

I agree with Chris.  Try getting power right from a drive cable.  If that works, likely you didn't get your connections correct on the mouse.  I had what I thought for sure was the ground, turned not to be.  I then traced the ground from the pin on the connector, and it was suprising.  Changed it, and it worked first try.

[Renegade1]

  The latest in my Saga,....

  Thanks guys, I tried using the 5v+ off of the pwr supply and I double checked my ground and it was fine, I even added it to the pwr supply ground just to be sure.

   So next I changed mice, except this time I didn't remove the black pickups off of the mouse I just used black tape and taped them so no light could enter, I soldered the wires on to the bottom of the pickup legs (that way if it didn't work I could remove my wires and still have a working mouse)

   This time I could get the mouse pointer to vibrate when I moved the trackball. If I moved the trackball L&R it would vibrate L&R like it was trying to move that way. Same thing for up and down.  Atleast I had movement of some kind!!  So I added the resistors again, swapped wires, ground-pos, nothing, no change, I can get it to vibe but that is it.

   Another note, when powered up I get 5+v in to the trackball and I also show 5+ at each of the pickup pins so I take it that it's already active high.  Also if I read the ohms between the 2 pins (X1-X2 or Y1-Y2)  I get 10.9 open and 77 closed and the other one gets 9.8 open and 69 closed (open= nothing blocking pickup to emitter, closed paper or tooth wheel blocking emitter).  SO it appears my pickups are atleast doing something.

   Must admit when I seen it vibrate so did I for a split second, thought I had it ;-)

 BTW it's a suzo

 Thanks Guys, I truely appreciate the time and effect in helping me.

  Renegade

[Chris]

Hmm.  That vibrating reminds me of trying to hack a Pole Position wheel; turns out the wheel was sending speed data, not raw pulses.

There's a thread at http://www.arcadecontrols.org/yabbse/index.php?board=1;action=display;threadid=17541 regarding a Suzo trackball hack, but it didn't seem to ever get completely resolved... it does note that Suzo's are active low, meaning the resistors will be necessary.  Might need to look into an Opti-PAC...

--Chris

[Renegade1]

  Thanks Chris,

         That would be my first post on this trackball.

   Yeah I don't quite know what to do next.  I am thinking about just removing the trackball pickups and mounting those off of the mouse in their position and see if I can get it to work that way......

  Yeah I am also getting the 5+ at the X/Y pins so I am going under the assumtion that it is indeed active high now....

 Anyway
   Thanks Guys!

  Renegade

[Chris]

        That would be my first post on this trackball.

ROFL!  That's what I get for not reading carefully!