int sw1 = 0;
int sw2 = 0;
int swon = 0;

void setup() {

  Serial.begin(115200);
  pinMode(13, INPUT_PULLUP);
  pinMode(12, INPUT_PULLUP);

  pinMode(15, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(18, OUTPUT);

}


void loop() {
  sw1 = digitalRead(13);
  sw2 = digitalRead(12);

  Serial.print("sw1 = ");
  Serial.println(sw1);
  Serial.print("sw2 = ");
  Serial.println(sw2);
  delay(100);

  if (sw1 == 0) {
    swon = !swon;
  }

  if (swon == 1) {
    digitalWrite(15, HIGH);
  }
  else {
    digitalWrite(15, LOW);
  }

}
//////////////////////////// ledright (run from right to left)

void ledright() {
  digitalWrite(18, HIGH);
  delay(500);
  digitalWrite(18, LOW);
  delay(500);
  digitalWrite(5, HIGH);
  delay(500);
  digitalWrite(5, LOW);
  delay(500);
  digitalWrite(4, HIGH);
  delay(500);
  digitalWrite(4, LOW);
  delay(500);
  digitalWrite(15, HIGH);
  delay(500);
  digitalWrite(15, LOW);
  delay(500);
}

//////////////////////////////////// leddual

void leddual () {
  digitalWrite(15, HIGH);
  digitalWrite(18, HIGH);
  delay(800);
  digitalWrite(15, LOW);
  digitalWrite(18, LOW);
  delay(800);

  digitalWrite(4, HIGH);
  digitalWrite(5, HIGH);
  delay(500);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  delay(500);

}