Overview

Project converting precise motion into musical tone. Timing and motor control on an FPGA; input, interface, and I/O on a microcontroller.

• Goals: 5 “voices” across 5 motors; microstepping sound amplification with resonance chamber development
• Tech: Verilog modules, UART and MIDI protocols, C++ firmware
• Status: Single “voice” simulation complete • MIDI protocol in progress

Small Code Sample

User input –> Control Logic –> Rotational Value (note).

// Harmonic Motion Project
const int STEP = 3; //Pin assignment
const int DIR = 2; //Pin assignment
const int ENABLE = 4; //Pin assignment
const int keys[8] = {22, 24, 26, 28, 30, 32, 34, 36}; //Pin assignment
const int tuning[8] = { //Can adjust note pitch as needed for each note
  100, //C
  200, //D
  300, //E
  400, //F
  500, //G
  600, //A
  700, //B
  800, //C_2
};
int currentNote = -1;

void startNote(int pitch){
  if (pitch == currentNote) return;
  tone(STEP, tuning[pitch]);
  currentNote = pitch;
}

Gantt (snapshot)

Excel Snapshot of Gantt Chart as of 9/24/25.