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2 cards from this section. Quick, good the night before a test.
What is multiplexing in the context of 7-segment displays?
Think about how many displays can be illuminated at the same time.
Name one benefit of using multiplexing.
Consider connections and wiring.
What is the main purpose of multiplexing in 7-segment displays?
Consider resource management.
True or False: A human will notice flickering if a display switches too slowly.
Think about visual perception.
Design a system using multiplexing to display a multi-digit countdown timer. Outline the GPIO configuration required and the logic needed to switch displays.
Consider time intervals and the speed of GPIO signal changes.
Evaluate the trade-offs between using multiplexing and driving all displays simultaneously in terms of power consumption and visibility.
Think about user experience versus resource management.
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