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The Something Awful Forums > Discussion > Hobbies, Crafts, & Houses > Learning electronics: Release the Magic Blue Smoke
 
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Dewski
Dec 15, 2005
Whoop-de-Whoop
Yergacheffe, this might clear some things up. http://en.wikipedia.org/wiki/LED_circuit

1) Use your spec sheet to find the current capacity of the LED.
2) V=I*R
3) 9-1.2=I*R
4) Sub in the current capacity for I, solve for R and pick up a resistor to put in place!

Edit: Almost forgot, round up on the resistor value, rounding down can cause issues.

Dewski fucked around with this message at 06:39 on Feb 7, 2008

* # ¿ Feb 7, 2008 06:36
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The Something Awful Forums > Discussion > Hobbies, Crafts, & Houses > Learning electronics: Release the Magic Blue Smoke