Ok... I have another question. :slight_smile: I purchased a "Sidekick" kit from Amazon with my Arduino. (link: http://www.amazon.com/gp/product/B007B14HM8/ref=ox_sc_act_title_1?ie=UTF8&smid=A1LHQ5G6ONPXVT ) I figured that, because I don't have a lot of components (e.g. resistors, etc.), it would be …

Using an Unknown LED

system January 7, 2013, 2:09am 8

LarryD:
Forward voltage: calculate the resistance using 2 volts. Then measure the actual forward voltage with a meter.

oh. I should have thought of that... Thanks!

//Andrew

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