Raspberry Pi - gpiozero Library
You want to trigger an alert if an object is closer than 0.2 meters using DistanceSensor. Which code snippet correctly implements this?
You want to trigger an alert if an object is closer than 0.2 meters using DistanceSensor. Which code snippet correctly implements this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Use distance property correctly
Access sensor.distance without parentheses to get current distance.Step 2: Check if distance is less than 0.2 meters
Use < operator to detect if object is closer than 0.2 meters.Final Answer:
if sensor.distance < 0.2: print('Alert: Object too close!') -> Option BQuick Check:
Use property and < for proximity alert [OK]
Quick Trick: Use sensor.distance without () and compare with < [OK]
Common Mistakes:
- Calling distance as a function
- Using > instead of < for close detection
- Checking equality instead of less than
Master "gpiozero Library" in Raspberry Pi
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Raspberry Pi Quizzes