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Connect the output (S) lead to a digital input pin (e.g. pin 2) on the Arduino Nano. Connect the two potentiometers to the breadboard. Connect the center lead of each potentiometer to an analog input ...

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Can also pass NULL to use the default pin assignments (digital pins 0-7 on Adafruit Metro Express or Arduino Zero): Adafruit_NeoPXL8 strip ... Microcontrollers compatible with this code are all 3.3V ...