// Full speed backwards
 servoLeft.writeMicroseconds(1300);   // Left wheel clockwise
 servoRight.writeMicroseconds(1700);  // Right wheelcounterclockwise

// Turn left in place
 servoLeft.writeMicroseconds(1300);   // Left wheel clockwise
 servoRight.writeMicroseconds(1300);  // Right wheel clockwise
 
// Turn right in place
 servoLeft.writeMicroseconds(1700);   // Left wheel counterclockwise
 servoRight.write Microseconds(1700); // Right wheel counterclockwise