b'CODE TO NOTEPARSING STRINGS: Reads a serial message until the first space and saves it Serial.readStringUntil( ); as a string.STRING TO INT: If a number is stored in a string variable, this will convert it to an integer, which can be used in math string_name.toInt(); equations.FUNCTIONS TO NOTErightMotor(motor_distance);Drive the right motor long enough to travel the specified distance.leftMotor(motor_distance); Drive the left motor long enough to travel the specified distance.CODING CHALLENGESREAD MORE COMMANDS: Add code to the sketch that takes not only direction but also distance. The two should be separated by a character the code can parse out and know where the next value begins. ADD MORE COMMANDS: This sketch only uses four of the many ASCII characters. Use different keys to move the robot in different ways or have commands turn on LEDs. TROUBLESHOOTINGCheck the wiring to the motor driver. There are a lot of connections, Motor notand its easy to mix one of them up with another. If only one motor is spinning working, check the wires coming from the nonworking motor. Make sure they have not come loose from the motor.Switch notMake sure that you are hooked up to the middle pin and one side pin on workingthe switch.100 : circuit 5b'