Transistor to switch internal controls off when external...

[epicelite]

How can I use a transistor to turn off the internal controller of my portable when the regular external one is plugged in?

 

[samjc3]

dont use a transistor. just switch the power lines.

 

[bentomo]

You don't switch the power lines, you switch the data lines. A relay might work.

 

[samjc3]

nah. switch power. have all the data lines connected. then by switching power you select which controller is on and connects. more power efficient, as well as simpler.

 

[hailrazer]

Only one works. I tried it with data and power and only one of them works right.

I'm "pretty" sure it was the data line but I can't recall for sure.

 

[samjc3]

this is for a playstation, right?

 

[bentomo]

this is for a playstation, right?

Holy cow, I just automatically started talking about the n64. I know that switching the data line for that system works fine and is better then switching the power because a second controller will confuse the console and it won't work, plus an n64 controller only draws 2-3mA and only about 4-5 when you mash every button.

 

[epicelite]

PSone.