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Will 5v to the ground... EE help with RGB Topfire... see post #22

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BobA:
Bender
Are you trying to light and LED by grounding it via the same switch that sends the signal to your encoder.  There was a thread on this and several circuits.  I think that the simplest was just using the same ground thru the switch.  Sorry cannot find it right now but if I remember correctly it worked and Andy even said that it would not hurt the inputs of the ipac.

NickG:
this is a pretty good way
http://shoryuken.com/content/light-up-activation-button-mod-tutorial-61/
if you only have a couple of button activated lights you can do this with some diodes, but hex inverters are better for more, and easier to work with on stripboard.

BobA:
Found the link for a simple hookup to light LED buttons.

LED buttons light when pressed

Bender:


ok I should have posted this earlier
I'm not trying to get the light to blink when pressed (but if that is the only solution that is ok)
I'm trying to make a topfire RGB light-up joystick
I am using a 4pole 3.5mm jack and plug in the bottom of the shaft to allow for the shaft to spin and as Stubs suggested in another thread
I'm using the shaft itself as a 5th pole, but I need 6 poles 4 for the RGB and 2 for the button, so I though I could share the common, but that turns out not to be so easy
The Diagram I have above does not work
If I detach the common from the mini pac the lights work, but the button doesn't
If I detach the common from the LEDwiz the button works, but obviously no lights
Is there any way to do this with 5 poles?

BobA:
Your problem looks to be that you are try to put both 5V and GND thru the shaft.   If you changed the LED to a common cathode it could share a ground but then the LED wiz would not work unless the output circuit could be changed to to handle common cathode.  Maybe an inverter circuit?

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