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Unread 19-07-2004, 12:25
Tristan Lall's Avatar
Tristan Lall Tristan Lall is offline
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Re: Competition Port

Quote:
Originally Posted by roboticsguy1988
First, we are working on an older robot for a demo. We have the choice between year 2000 OI and year 2002 OI. Both of course didn't have autonomus back when the were made. So if i were to make a disable switch would it use the same pins as it does on the newer OI's? We were thinking about letting some people out of the crowd drive the robot to have some fun, and we thought it would be safe to have a disable switch.
The pinout is the same--but the autonomous-specific things are considered reserved (no connection) instead.

Quote:
Originally Posted by roboticsguy1988
Second, are there any pins on the competition port that put out power? If so, do you know how much voltage it puts out? I had the idea of putting some LED's in a clear switch box (auton, disable, practice), kinda to make it glow . Also, what pin should i use for the ground of the LED's? By the way, this information i would want for the newer OI's.
The small battery is a better idea. Though it is possible to draw enough to light several LEDs when the OI is running from AC (via a 9 V DC adapter), when the OI is tethered, the OI will not light the LEDs on the switch box. (And I don't remember which pin--there's a white paper floating around authored by Joe Johnson, which describes the "yellow dongle", a competition port switch--it should have the information.)

The 2002 model can be updated with new firmware which enables autonomous mode operation. Talk to IFI for details. (The 2000 model, though very similar, probably has subtle internal differences which preclude this.)
 


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