hello, I am controlling 8 LEDs in an array (these: Super Bright LED - Blue 10mm - COM-08860 - SparkFun Electronics ) through a TIP120 and an arduino...doing PWM on them. They are powered by a seperate 9V wall wort. There are two for each resistor, 33ohm 1/2W...so 4 resistors in all. I used an LED ca…

stumped by this LED array

fungus March 21, 2013, 3:52pm 2

Broken wire?

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