Raspberry Pi - gpiozero Library
Why is it important to call GPIO.cleanup() at the end of a program using a PIR sensor on Raspberry Pi?
Why is it important to call GPIO.cleanup() at the end of a program using a PIR sensor on Raspberry Pi?
hard📝 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Understand GPIO.cleanup purpose
GPIO.cleanup resets all GPIO pins to default state.Step 2: Identify why cleanup is needed
This avoids warnings and conflicts when running programs multiple times.Final Answer:
To reset GPIO pins and avoid warnings on next run -> Option BQuick Check:
GPIO.cleanup resets pins for clean next use [OK]
Quick Trick: Always call GPIO.cleanup() to reset pins after use [OK]
Common Mistakes:
- Thinking cleanup affects sensor range or speed
- Skipping cleanup causing warnings
- Believing cleanup disables pins permanently
Master "gpiozero Library" in Raspberry Pi
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