In this inquiry-based project, you will be developing a prototype that relates to a real-world application from the items available in Arduino Starter Kit. The prototype should include the following, * 4 Input: Unique number of analog inputs, and digital inputs (note: that inputs cannot be of the same type/functionality). * 2 Output: A visual and audio cue for the customer * Program Functionality: (1) Should include nested condition and control statements. (2) sub-functions (3) User-friendly (4) All boundary conditions tested.

Need help with a prototype of something and code.

Prototype idea: Vending Machine