I am running my board (barebones Arduino) at 3.30V. I have these RGB LEDs from Cree; you can see the datasheet here: http://www.cree.com/~/media/Files/Cree/LED%20Components%20and%20Modules/HB/Data%20Sheets/CLV1AFKB(874).pdf The Blue and Green "parts" of this LED have a forward voltage specificatio…

Forward voltage of RGB Leds

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