8.6.3. Real-World Applications

Try these first

1. 1.

   What is the role of a timer in a digital clock?

   Hint

   Think about what keeps time ticking.

2. 2.

   How does GPIO contribute to event counting?

   Hint

   Consider what kinds of external devices give feedback.

3. 3.

   What is the primary role of a timer in embedded systems?

   • To generate time signals
   • To control devices
   • To display information

   Hint

   Think about what keeps track of time in devices.

4. 4.

   True or False: GPIO can only be used as output pins.

   • True
   • False

   Hint

   Remember the versatility GPIO offers.

5. 5.

   Design a digital scoreboard for a basketball game that utilizes a timer and GPIO. Describe how the timer will interact with GPIO modules.

   Hint

   Think about how both the game time and scores need to be visible.

6. 6.

   Analyze the potential issues when using GPIO to count high-frequency events. Suggest solutions.

   Hint

   Consider how physical or electrical signals could interfere.