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4 cards from this section. Quick, good the night before a test.
What does GPIO stand for?
Think about the functions of these pins.
What is the purpose of pull-up resistors?
Consider how you ensure a pin has a default state.
What does GPIO stand for?
Focus on the main functions of these pins.
True or False: GPIO pins can only be used as either input or output, not both.
Remember the flexibility of GPIO.
Design a program using GPIO on a microcontroller where a button press should toggle an LED on and off. Explain how the code uses interrupts.
Consider how the microcontroller detects changes in pin state.
Explain the concept of shared communication lines using GPIO and open-drain outputs in I2C. What are the benefits of this approach?
Think about how devices can listen to each other on the same bus without interference.
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