[sdiy] usb keyboard matrix hack

[Dave Krooshof]

Hellew

I'm trying to merge a USB numeric keyboard with a oldkool joystick
(with 4 switches). The goal is that the joystick is electronically pressing
the numbers on the keypad.
The phisical keys of the keypad are allready in the trash.
I made a logic circuit to convert the 9 positions of the joystick to
pulses on 9 different wires.

So I wondered... Just to keep things simple...
Is there a logic gate that behaves like relais, so I can fake the keys?

Something that behaves like this:
I put 5 volts on pin 1, and pin 2 gets connected to pin 3.
or:
I put 5 volts on pin 1, and the voltage on pin 2 is copied to pin 3.

Does it exist?


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groets,

_          >^v<        _

website http://www.dendriet.nl