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3 cards from this section. Quick, good the night before a test.
What does GPIO stand for?
Think about what the pins do.
What happens when a GPIO pin senses a change in input?
Recall our discussion on event-driven examples.
What is the function of a GPIO interrupt?
Remember how interrupts improve responsiveness in your designs.
True or False: Pull-up resistors are used to prevent GPIO pins from floating.
Think about the stability of the signal when the button isn't pressed.
Design an embedded system that uses GPIO interrupts to control a fan based on temperature readings from a sensor.
Think about real-time applications of sensors and GPIO.
You're creating a remote-controlled car. Describe how you would use GPIO interrupts to make the car stop when a button is pressed.
Focus on how you can interrupt the current operation for immediate reaction.
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