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	- Project: "MIDI Sensors"
	- Source Code NOT compiled for: ESP32 DevKit V1
	- Source Code created on: 2024-06-06 22:20:14

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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 *****/

/****** DEFINITION OF LIBRARIES *****/
#include <Ultrasonic.h>  // https://github.com/JRodrigoTech/Ultrasonic-HC-SR04
#include <MIDI.h>  // https://github.com/FortySevenEffects/arduino_midi_library

/****** FUNCTION PROTOTYPES *****/
void setup(void);
void loop(void);
void updateOutputs(void);

/***** DEFINITION OF DIGITAL INPUT PINS *****/
const uint8_t ultrasonic_HC_SR04_Echo_PIN_D17 = 17;

/***** DEFINITION OF ANALOG INPUT PINS *****/
const uint8_t pot1_Potentiometer_Vout_PIN_D4 = 4;
const uint8_t pot2_Potentiometer_Vout_PIN_D13 = 13;
const uint8_t pot3_Potentiometer_Vout_PIN_D14 = 14;

/***** DEFINITION OF DIGITAL OUTPUT PINS *****/
const uint8_t ultrasonic_HC_SR04_Trigger_PIN_D16 = 16;

/***** DEFINITION OF OUTPUT RAW VARIABLES *****/
/***** used to store raw data *****/
bool ultrasonic_HC_SR04_Trigger_PIN_D16_rawData = 0;

/***** DEFINITION OF OUTPUT PHYSICAL VARIABLES *****/
/***** used to store data after characteristic curve transformation *****/
float ultrasonic_HC_SR04_Trigger_PIN_D16_phyData = 0.0;

/****** DEFINITION OF LIBRARIES CLASS INSTANCES*****/
Ultrasonic ultrasonic(ultrasonic_HC_SR04_Trigger_PIN_D16, ultrasonic_HC_SR04_Echo_PIN_D17);  // Create the ultrasonic object
MIDI_CREATE_DEFAULT_INSTANCE();  // Create the MIDI object

void setup(void) {
  // put your setup code here, to run once:

  pinMode(ultrasonic_HC_SR04_Echo_PIN_D17, INPUT);
  pinMode(pot1_Potentiometer_Vout_PIN_D4, INPUT);
  pinMode(pot2_Potentiometer_Vout_PIN_D13, INPUT);
  pinMode(pot3_Potentiometer_Vout_PIN_D14, INPUT);

  pinMode(ultrasonic_HC_SR04_Trigger_PIN_D16, OUTPUT);

  Serial.begin(9600);  // Initialize serial communication

  MIDI.begin(4);  // Initialize MIDI and listen to channel 4
}

void loop(void) {
  // put your main code here, to run repeatedly:

  updateOutputs();  // Refresh output data

  // Read potentiometer values and send MIDI messages
  int pot1Value = analogRead(pot1_Potentiometer_Vout_PIN_D4);
  int pot2Value = analogRead(pot2_Potentiometer_Vout_PIN_D13);
  int pot3Value = analogRead(pot3_Potentiometer_Vout_PIN_D14);

  MIDI.sendControlChange(1, map(pot1Value, 0, 1023, 0, 127), 1);  // Send MIDI CC for pot1
  MIDI.sendControlChange(2, map(pot2Value, 0, 1023, 0, 127), 1);  // Send MIDI CC for pot2
  MIDI.sendControlChange(3, map(pot3Value, 0, 1023, 0, 127), 1);  // Send MIDI CC for pot3

  // Read ultrasonic sensor and send MIDI messages
  float distance = ultrasonic.read();  // Get the distance in cm
  if (distance >= 5 && distance <= 40) {
    int midiValue = map(distance, 5, 40, 0, 127);
    MIDI.sendControlChange(4, midiValue, 1);  // Send MIDI CC for ultrasonic sensor
  }

  delay(100);  // Delay for 100ms to avoid flooding the MIDI messages
}

void updateOutputs() {
  ultrasonic_HC_SR04_Trigger_PIN_D16_phyData = ultrasonic.read();  // Get the distance in cm
  Serial.print("Distance in CM: ");
  Serial.println(ultrasonic_HC_SR04_Trigger_PIN_D16_phyData);

  digitalWrite(ultrasonic_HC_SR04_Trigger_PIN_D16, ultrasonic_HC_SR04_Trigger_PIN_D16_rawData);
  delay(1000);  // Delay for 1 second
}

/* END CODE */