 const byte prrPin = 31;
 const byte buttonPin = A0;
 const byte ledPin = 13;
+const byte guideLaserPin = 29;
 
-const byte powerLevel = 50;
+const byte powerLevel = 20;
 
 const byte auxToPowerMillis = 100;
 const byte powerToLatchMillis = 100;

const char enableKey = 'e';
const char disableKey = 'd';
const char powerKey = 'p';

boolean laserEnabled = false;
boolean inAfterStartState = true;

  digitalWrite(prrPin, LOW);
  laserEnabled = false;
  digitalWrite(ledPin, LOW);
  digitalWrite(guideLaserPin, HIGH);
  Serial.println(disableKey);
}

void enableLaser() {
  digitalWrite(guideLaserPin, LOW);
  digitalWrite(prrPin, HIGH);
  submitPower(powerLevel);
  delay(periodMillis);
