8.7.1. Pin Configuration and Voltage Levels

Try these first

1. 1.

   Define a digital pin.

   Hint

   Think about a simple ON/OFF switch.

2. 2.

   What does PWM stand for?

   Hint

   It’s a method to control power.

3. 3.

   What are digital pins used for?

   • For analog signals
   • For on/off signals
   • For power supply

   Hint

   Think about a light switch.

4. 4.

   True or False: PWM can only be used for digital signals.

   • True
   • False

   Hint

   Consider its purpose in speed control.

5. 5.

   Describe a situation where improper pin configuration could lead to significant errors in a robotics application. How would you troubleshoot it?

   Hint

   You may want to think about real-world examples that could happen.

6. 6.

   Using PWM, write a pseudocode to control a motor speed adjusting it from 0 to maximum in 4 seconds.

   Hint

   Consider how you would increment the PWM values in your code.