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| How do hack a Pole Position steering wheel to a USB mouse? |
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| GearHead:
Depending on the mouse you use you may need some resistors on the outputs tied to ground. 2K resistors should do the job. Schematic below.... This board plugs right into an Optipac and works nicely. |
| unclet:
GearHead: Thanks for the effort, but I have no idea what that pciture is trying to say ::) I am not that electronically inclined. Anyway, I am going to connect the Pole Position PCB directly to a Belkin USB mouse (model #F8E813-USB). Does that sound good? PS: Will I hurt my computer and/or mouse if I do not use a resistor when I needed one? |
| unclet:
I ran wires from my "X-axis" mouse PCB optics to the Pole Position PCB, but nothing happens when I spin my Pole Position steering wheel. My computer does recognize the Belkin USB mouse since I can spin one of the flywheels (which came inside the mouse hardware) through the "Y-axis" and the cursor moves. When I spin it through the "X-axis" it does not move. Thing is, I left the X-axis optics attached to the mouse PCB, is this bad? I mean, do I have to remove the X-axis mouse optics from my mouse PCB to allow the Pole Position optics to work? Or, do I in fact need to add a resistor somewhere. if so, please tell me where exactly I need to sodler the resistor too, based on my Atari Pole Position PCB shown in the above postings. PS: I am assuming my Pole Position PCB does in fact work like the guy I bought it from indicated.... but I am not sure. |
| aredhel:
You need to remove the sensor from the mouse board. With it inplace one or both of the signal lines are being held high. Don't remove the led if you need the other axis to work as is. If you can't tell the led from the sensor post a photo in which we can see the wires on the PCB and some one should be able to tell you. If that dosn't work you will need to test some things. Hook the Pole PCB to 5V and leave the signal pins unconnected and use a volt meater between ground and a signal pin. If it's working right then it should jump between 0 and >3v volts as you turn the wheel. Next plug the mouse in and use a volt meater between its ground and the three pads where the sensor was attached. One should be +5v, the other two should be 0v or some where in between 0 and 5 volts. If the two pads are at 0v then hook them to the signal lines from the Pole PCB and it should just work. If the two pads are inbetween then after you connect them to the Pole PCB you will need to add two resistors, one between each signal line and ground. You should note that if I got the +v and ground on the photo reversed then almost nothing I said holds true and the wiring will be vary difrent. You should be able to tell by using a diode check on a volt meter on the leds. |
| unclet:
I guess what you mean by the "led" is the transmitter on the mouse PCB? Anyway, I removed both the transmitter "led ?" and receiver from the X-axis of the mouse PCB since I do not need the other axis (ie: Y-axis) to work properly. I will test this out tonight. My fingers are crossed since if this works, then my final panel of my 6-panel rotating driving cab would be complete thus I can start to assemble the surrounding MDF pieces and be very close to finishing. My goal is to finish a couple weeks before XMas. PS: I am honored to be a part of your first BYOAC post ..... thanks for the information and Welcome to BYOAC. |
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