Raspberry Pi - gpiozero Library
Which of the following Python code snippets correctly sets GPIO pin 17 as input for a PIR sensor?
Which of the following Python code snippets correctly sets GPIO pin 17 as input for a PIR sensor?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recall GPIO.setup syntax
The correct syntax is GPIO.setup(pin_number, direction).Step 2: Match correct pin and direction
Pin 17 should be set as input using GPIO.IN.Final Answer:
GPIO.setup(17, GPIO.IN) -> Option DQuick Check:
GPIO setup input syntax = GPIO.setup(pin, GPIO.IN) [OK]
Quick Trick: Pin number first, then direction in GPIO.setup() [OK]
Common Mistakes:
- Swapping pin and direction arguments
- Using GPIO.OUT instead of GPIO.IN for input
- Incorrect argument order causing errors
Master "gpiozero Library" in Raspberry Pi
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