Discussion and Support for the OptiTrack, SmartNav and TrackIR brands by NaturalPoint

Active LED Wiring

by bradkean » Tue Jan 09, 2018 8:37 pm

Looking at the datasheet for the OptiTrack active LEDs, it says there's a typical forward voltage of 1.45V. If I'm using a 1.5V AAA battery to power them, can I forego using a resistor? Based on what I could find, it seems like the resistor is only for when your power source is higher voltage than the LEDs forward voltage. Is this correct?

Thanks for any tips in wiring these guys up.

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Joined: Tue Jan 09, 2018 8:28 pm

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