Fence Patrol

DN Codebot 10:  Type the code below and write a comment next to each line of code describing what the code does.

DN Codebot 11:

Write two functions called happyBirthday( ) and playNote( ), one function to play a note and one function to play the notes:  G   G  A  G   C  B  G  G  A  C  G  D

DN Codebot 13: Write the code for the robot to backup. Try out your robot. Pretend this is a roomba. How would you backup to cover vacuum in the best direction. See the code below.