Improve your machine

Congratulations! You have completed the challenge. Now you are ready to improve your machine and share your ideas with others.
Challenge questions:
  • Can you expand your program to accept two different coins?  
  • Can you make a mechanism to automatically measure the coin for the user?
  • Can you add up how much money was provided?
  • What else can you do?
Share your ideas below. Post a YouTube link to your creations. How does your machine work?