BLUE4 to a 100 ohm resistor to pot pin 17 To ground the LED busses, we’ll be using four 2N2222 transistors. The Arduino will trigger each transistor individually through a 1Kohm resistor.

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BLUE4 to a 100 ohm resistor to pot pin 17 To ground the LED busses, we’ll be using four 2N2222 transistors. The Arduino will trigger each transistor individually through a 1Kohm resistor.