PWM Arduino Knight Rider

[hectorcastillo2000]

For what are the transistors? and what transistors are?

[joebro391]

@hectorcastillo2000 to supply more voltage to the LED's than the Arduino can supply. -Joe

[danimal511]

@joebro391 more current actually :) it's called sourcing current

[joebro391]

@danimal511 ah, true. You is right. The voltage would be constant, it's the current that'd vary. Thanks for reminding me haha. -Joe

[WeAreTwoDoorsDown]

very coolio!!!