Tinkercad Simulation of Arduino and circuity:
https://www.tinkercad.com/things/kZ8lBtSx1vj-copy-of-ece3872-time-zeeper/editel?sharecode=Mxh5uRSaNloz5li4VxAIo-LYPFh9B_5_VCMgjHP5ZlA
Arduino Pinouts
A0 - Audio in
A1 - Enveloped audio in
A2 - Octave knob
[D4 - D7] are for stepper motor
D4 - AIn1
D5 - Ain2
D6 - Bin1
D7 - Bin2
D8 - Start/Stop Button
D9 - Tone out
D10 - Servo out
D12 - Neopixel LED out
