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Unread 15-12-2004, 10:14
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jgannon jgannon is offline
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Re: Steering wheel issues

Quote:
Originally Posted by Al Skierkiewicz
I need more input. I am guessing from your description of throttle-brake that they are mechanically interconnected. Pressing the brake when you have not run up the throttle would do nothing. I am more in favor of making an adapter box where the +5 from the OI gets wired over to the four supply pins and the other wires go straight through then to modify the OI porting. A small box, two 15 pin connectors and a little wire should do it. You might also add in a "Y" adapter so that you can get to two joystick inputs on the OI. I am also more inclined to open the wheel and see what's inside than most people so that would be where I would go next.
There is only one potentiometer inside the wheel. The wiper is connected to +5 (pin 1), and one of the sides is connected to the x-axis (pin 3). Also connected to the wiper is a 12.5k resistor connected to a gray wire, but I haven't been able to determine where that leads to yet. When I test the pedals in Windows, pushing the gas by itself is like pushing a stick towards +y. Pushing the brake by itself is like pushing a stick towards -y. I can't really reach the actual contacts of the two potentiometers inside the pedals, but testing the connector indicates that they get their power from pin 15. I assume that's why they work now that I'm putting +5 to that pin. However, I do indeed plan to build an adapter like you described.
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