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Happ Trackball mouse hack help

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Hunk_4TH:

I just came across a Happ Trackball for a buck (yeah a buck lol) at my local flea market. It has the red optical boards and not the green (not sure if that makes a difference?

Anyway I was curious if it's possible to hack a laser optical mouse instead of an old ball mouse? As that's all I have laying around atm.

I've Googled countless times and always come across a guide that uses a ball mouse. Which leads me to believe it isn't possible? Please let me know. I can post pictures of the mouse and Trackball if that helps?

chopperthedog:

Not possible. Find an old ball type if you want to do the hack.


good day.

Hunk_4TH:

I figured as much lol. Well thanks!

Hunk_4TH:

My cousin gave me an HP ball mouse model number hp n8rbp-02. I'm having some trouble finding how where I would solder the two 5v wires,ground wires etc.. I've found guides but they were no help. Would anyone be able to chime in on this? I have some decent soldering skills. I just need to know where to solder to. I know what wires ware what. Only camera I have atm is my phone and it sucks or I would definitely take a pic.

pbj:

Eh, not completely true re optical mice.  You may be able to mount the mouse circuit board close to the ball and get decent performance.  I've done it.  Won't really work if the ball is shiny and white.

Anyway, the sensors on your trackball have 5V/Ground and two signal wires.  You should be able to find power and ground off your mouse PCB.  The signal inputs are coming off the transistor near your mouse axis.

Simple google search for "mouse trackball hack" reveals:

http://mamewah.mameworld.info/mousehack.htm

 :cheers:

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