So I'm making an audio reactive led strip as my first project and I was stuck at this "Connect GND on the power supply to GND on the LED strip and GND on the Raspberry Pi (they MUST share a common GND connection)". What is GND? How do I connect the power supply to the LED strip AND the pi? Could someone explain it better or if you're super cool create like a diagram of it? Thanks!
The link: https://github.com/scottlawsonbc/audio- ... -led-strip