spudgunblunder

I've taken the Volume knob from a Ford Radio. I asume this is a rotary encoder with a push switch.
There are 2 pins for the push switch and 3 pins for the encoder. I know one of which goes to GND and I thought the other two would be ClockWise and Anti-ClockWise.



Can I rig this upto an old roller ball PS/2 mouse by replacing one of the recievers on an axis?



I've tried it but it did'nt seem to work and I think I've killed my Keyboard/Mouse/Screen switcher.

MP3Car.com

 

yonu

I am not sure as I have never atempted to hack a mouse but don't you have to ty it in to the scroll wheel?

Motorcity

won't work. The radio volume knob is a variable resistor, the mouse uses a hall effect switch. Not the same. Not by a mile. The mouse won't be able to read the vr.

spudgunblunder

I think it is a rotary encoder as it keeps turning forever and switches continuety from pin1+GND and pin2+GND.
here's the insides:



If this is an encoder can it replace the optical enoder of the mouse?
If not how could I wire it to mu CarPC?

spudgunblunder

Am i trying to connect the encoder to the wrong kind of mouse? Would this one work? It looks like the same mechanism?

spudgunblunder

Thought I'd give it a go but I think I've killed this mouse.
It's USB. It lights up but does not react to any buttons or movement with or without the vol knob connected?

3g Jester

cool idea. wish i could help. seems like your doing everything right. the concept is easy and should work according to how you have it designed. but im not too sure thats the right rotary switch....i dont do componant level maintenance like that much so i really dont know what suggestions to offer.

__________________
http://i25.photobucket.com/albums/c8.../positions.gif

spudgunblunder

Thanks anyway jester.

spudgunblunder

It works!
It was just my computers crapping out on me. USB ports are dying on BOTH!
Works fine on PS/2 though.

0-0-7

details & pics please ?

JimmyFitz

Mouse encoder signals don't give a forward and a reverse. There are just two lines that pulse when the encoder sees light or dark. Direction is determined by which of the two signal lines occurs first when rotating.

__________________
2002 T-Bird, Via SP13000, Travla C158, M1-ATX, 1GB RAM, 120GB 2.5" drive, SlimSlot DVD-RW, XP, RR, Winamp, Xenarc 700TSV, HTC Touch PPC/Phone, BU-353 GPS/iG3, Elmscan OBDII, Griffin PowerMate, 2 Blaupunkt amps, Polk spkrs, 5 sec startup/S3 STR
~Jimmy

spudgunblunder

0-0-7, Here's a simple pinout:

BEFORE


AFTER


Thanks Jimmy.

agniusm

I was recently experimenting with mouse rotary encoder too. Made rough sample:


The knob made of VHS head.



There is a program called autohotkey. It alows to map hotkeys to wheelUP/DOWN, buttons.

spudgunblunder

I like the look and the smoothness would be great. How do you have AutoHotkey setup? (post your script here) I'm using it already but want to know how to do THIS.

agniusm

Hi. was'nt playing alot with autohotkeys. what about someting like that
wheelUP::F11
wheelDOWN:F12
Lbutton+wheelUP::(assign for scrool up)
Lbutton+whelDOWN::(assign for scrool down)
Rbutton+wheelUP::(assign zoom in)
Rbutton+wheelDOWN::(assign zoom out)
???
I actualy meade hotkeys just for volume.
i wander if u can buy those encoders in shop separatly.
Cheers

MP3Car.com