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Pole Position 2 Encoder
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MonMotha:
Eh, this isn't hard.  Just go to radio shack (and hope they still have parts), pick up a pack of 4.7k resistors.  Should be about a buck.  Take a resistor and connect one end to one of the signals and the other end to +5V that you're using to power the board.  Do the same for the other signal.  See what results.
Brad:
Well I could source some from Jaycar however if you look at the PCB back I have labelled the components and the R's I'm assuming are the resistors already on there. Wouldn't that mean I don't need extra resistors?

Cheers,
Brad
MonMotha:
These resistors would be in a different place.  It looks like the output of that board will float high-ish due to the LED that's on them, but it may not be high enough for your interface board to reliably register.  Depends on the encoder and what the value of the resistors on the board are.  Resistors are cheap, so it won't hurt anything to try.

Also, the LEDs should reflect the two outputs.  As you spin the encoder wheel between the optical pickups, you should be able to see the LEDs flash on and off.  If you spin it slowly and watch carefully, you should see that outputs are in quadrature (see the graph at the right).  You can use these LEDs to visually confirm that everything is working prior to your interface board.
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