BBC micro:bit – Ticketing System

Now-ServingYour challenge consists of programming your BBC micro:bit to use it as a ticketing system. Ticketing systems are used in a shop to control the order of the queue of customers:

  1. The queue should start at the value 0, and should be displayed on the micro:bit LED screen.
  2. When a shop assistant is available they press button A to call for a customer: The queue number displayed on the micro:bit should increase by 1.
  3. The shop assistant should be able to cancel their action by pressing button B: in this case the queue number should decrease by 1.
  4. To reset the ticketing system, the shop assistant should press both A and B buttons simultaneously. The queue number will be reset to 0.



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