Star delta motor starting using electronic device

#define POT_PIN        A1
#define SENSE_PIN      A7

#define START_PIN      0

#define MAIN_PIN       A2
#define STAR_PIN       A6
#define DELTA_PIN      A4


const float ADC_REF = 5.0;        
const float OVER_VOLTAGE = 2.0;   


bool motorRunning = false;         
bool starActive   = false;         
unsigned long starStartTime = 0;   
unsigned long starDuration  = 0;   

void setup() {
  
  pinMode(START_PIN, INPUT);

  
  pinMode(MAIN_PIN, OUTPUT);
  pinMode(STAR_PIN, OUTPUT);
  pinMode(DELTA_PIN, OUTPUT);

  stopAll();
}

void loop() {
  
  float senseVoltage = analogRead(SENSE_PIN) * ADC_REF / 1023.0;
  if (senseVoltage > OVER_VOLTAGE) {
    stopAll();
    motorRunning = false;
    return; 
  }

 
  bool startSignal = digitalRead(START_PIN);

 
  if (startSignal && !motorRunning) {
    motorRunning = true;
    starActive = true;

    int potValue = analogRead(POT_PIN);
    starDuration = map(potValue, 0, 1023, 0, 120000UL);

    starStartTime = millis();

    
    digitalWrite(MAIN_PIN, HIGH);
    digitalWrite(STAR_PIN, HIGH);
    digitalWrite(DELTA_PIN, LOW);
  }


  if (motorRunning && starActive) {
    if (millis() - starStartTime >= starDuration) {
      // Turn off star, turn on delta
      digitalWrite(STAR_PIN, LOW);
      digitalWrite(DELTA_PIN, HIGH);

      starActive = false;
    }
  }


  if (!startSignal && motorRunning) {
    stopAll();
    motorRunning = false;
  }
}


void stopAll() {
  digitalWrite(MAIN_PIN, LOW);
  digitalWrite(STAR_PIN, LOW);
  digitalWrite(DELTA_PIN, LOW);
}