   motors.brake();
 
 }
+

#define SPEED 60  // sets the nominal speed. Set to any number from 0 - 255.

RedBotMotors motors;
boolean s1 = true;
boolean s2 = true;
boolean s3 = true;
int leftSpeed;   // variable used to store the leftMotor speed
int rightSpeed;  // variable used to store the rightMotor speed
RedBotSensor left = RedBotSensor(A3);   // initialize a left sensor object on A3



 
 if(Serial.available())
 {
 
  int l = left.read();
  int r = right.read();
  int c = center.read();
