MENU and SETTINGS

Other Hardware Storage
4

What's needed is called a "State Machine"

enum states 
{
  CHOOSE,
  SELECTED,
  PAY,
  VEND,
  THANKS
}

states currentState = CHOOSE;

void loop() {
  
 switch(currenentState)
{
  case CHOOSE:
    // code todo this:
    // 1. LCD display "Welcome Vendo" "Choose Item".
    // 2. Turn LED on.
    currenentState = SELECTED;
    break;

  case SELECTED:
    // code todo this:
    // 3. button1 - 4 represents the 4 trays inside the vending machine.
    // 4. if button1 is pressed, LCD displays "Item 01 is selected" "Insert Coin". Turn LED off 
    currenentState = PAY;
    break;
        
  case PAY:
    // code todo this:
    // 5. If the Coin Acceptor pulse == itemAmount of item 01, display the Amount digits everytime a 
    // coin is inserted. Blink LED twice.
    currenentState = VEND;
    break;

  case VEND:
    // code todo this:
    // 6. Vending item and LCD displays "Vending Item" "Please Wait".
    currenentState = SELECTED;
    break;

  case THANKS:
    // code todo this:
    // 7. After the process, LCD displays "Item Vended" "Thank you".
    currenentState = CHOOSE;
    break;
    
}

}