Thread: Using the IR
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Unread 13-02-2008, 09:31
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FRC #3548 (RoboRavens2)
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Join Date: Sep 2004
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Re: Using the IR

[quote=eugenebrooks;697894] Also, according to team updates, you can modify the board to run off of the 5 volt rail by removing the voltage regulator and installing the jumper across the pads provided for this purpose. By doing this the power and signal wires can terminate on the digital input rail of the RC with no extra wiring to the 12 volt supply.

If I understand what you are saying, there may be a problem with your recommendation. We looked up the PWM digital output capacity and it could source 8 ma of current. From memory, the IR LED was configured with a 470 ohm resistor, so it uses 10ma. The IR board, when activated, flashes a LED. You will then exceed the 8 ma sourcing capacity and experience ?? .
My recommendation is rather than modifiying the IR board and removing the regulator to keep the 5V regulator
and wire it to +12V panel.
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Last edited by marccenter : 13-02-2008 at 15:37. Reason: Cleanup
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