Add circuitry
for coin-sensing contacts to Vending Machine 2 (HD16-11). The operation
of the vending machine should now be as follows:
- If the coin-sensing contacts have been briefly closed
(indicating enough money has been received), the user should now
be able to press either the Coke button or the Pepsi button, and the
machine should act like it did for Vending Machine 2.
- Once the horizontal bar has reached the bottom microswitch,
the user must deposit money again before the Coke or Pepsi buttons will
work.
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