3POTlaserMIDI rev_10

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    - Project:
    - Source Code NOT compiled for: ESP32 DevKit V1
    - Source Code created on: 2025-07-15 22:06:04

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/****** SYSTEM REQUIREMENTS *****/
/****** SYSTEM REQUIREMENT 1 *****/
    /* Each potentiometer send midi messages through USB */
    /* The ultrasensor send midi message too. The */
    /* ultrasensor work between 5 cm and 40 cm */
/****** END SYSTEM REQUIREMENTS *****/

/* START CODE */

/****** DEFINITION OF LIBRARIES *****/
#include <Ultrasonic.h>    //https://github.com/ErickSimoes/Ultrasonic
#include <MIDI.h>          //https://github.com/FortySevenEffects/arduino_midi_library

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void sendPotMidiMessage(int potValue, uint8_t midiCC);
void sendUltrasonicMidiMessage(float distance);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t ultrasonic_Echo_PIN_TX2 = 13; // Example pin, replace with actual
const uint8_t ultrasonic_Trigger_PIN_RX2 = 12; // Example pin, replace with actual

/***** DEFINITION OF ANALOG INPUT PINS *****/
const uint8_t pot1_Vout_PIN_D4 = 34; // Example ADC pin, replace with actual
const uint8_t pot2_Vout_PIN_D13 = 35; // Example ADC pin, replace with actual
const uint8_t pot3_Vout_PIN_D14 = 36; // Example ADC pin, replace with actual

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
bool ultrasonicTriggerRawData = false;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
float ultrasonicDistance = 0.0;

/****** LIBRARIES CLASS INSTANCES *****/
Ultrasonic ultrasonicSensor(ultrasonic_Trigger_PIN_RX2, ultrasonic_Echo_PIN_TX2);
MIDI_CREATE_DEFAULT_INSTANCE();

void setup(void)
{
  // Initialize pins
  pinMode(ultrasonic_Echo_PIN_TX2, INPUT);
  pinMode(ultrasonic_Trigger_PIN_RX2, OUTPUT);
  pinMode(pot1_Vout_PIN_D4, INPUT);
  pinMode(pot2_Vout_PIN_D13, INPUT);
  pinMode(pot3_Vout_PIN_D14, INPUT);

  // Initialize MIDI
  MIDI.begin(MIDI_CHANNEL_OMNI);
}

void loop(void)
{
  // Read potentiometers (0-4095), map to 0-127 for MIDI CC
  int pot1Value = analogRead(pot1_Vout_PIN_D4);
  int pot2Value = analogRead(pot2_Vout_PIN_D13);
  int pot3Value = analogRead(pot3_Vout_PIN_D14);

  // Send MIDI messages for potentiometers
  sendPotMidiMessage(pot1Value, 1); // CC1
  sendPotMidiMessage(pot2Value, 2); // CC2
  sendPotMidiMessage(pot3Value, 3); // CC3

  // Read ultrasonic sensor distance
  ultrasonicDistance = ultrasonicSensor.read();

  // Check if distance is within 5cm to 40cm
  if (ultrasonicDistance >= 5 && ultrasonicDistance <= 40)
  {
    sendUltrasonicMidiMessage(ultrasonicDistance);
  }

  delay(100); // Small delay for stability
}

void sendPotMidiMessage(int potValue, uint8_t midiCC)
{
  // Map potentiometer value (0-4095) to MIDI CC value (0-127)
  int midiValue = map(potValue, 0, 4095, 0, 127);
  MIDI.sendControlChange(midiCC, midiValue, 1); // Send on channel 1
}

void sendUltrasonicMidiMessage(float distance)
{
  // Map distance (5-40cm) to MIDI CC value (0-127)
  int midiValue = map(distance, 5, 40, 0, 127);
  MIDI.sendControlChange(4, midiValue, 1); // Use CC4 for ultrasonic sensor
}

/* END CODE */