Raspberry Pi - gpiozero Library
Which of the following is the correct way to set up a GPIO pin as input for a PIR sensor in Python using RPi.GPIO?
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
# What goes here?
Which of the following is the correct way to set up a GPIO pin as input for a PIR sensor in Python using RPi.GPIO?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Identify pin mode for PIR sensor input
PIR sensor output should be read as input on the Raspberry Pi GPIO pin.Step 2: Match correct GPIO setup syntax
GPIO.setup(pin_number, GPIO.IN) sets the pin as input, which is needed to read sensor data.Final Answer:
GPIO.setup(17, GPIO.IN) -> Option AQuick Check:
GPIO input setup = GPIO.setup(pin, GPIO.IN) [OK]
Quick Trick: Use GPIO.IN to read sensor signals, not GPIO.OUT [OK]
Common Mistakes:
- Using GPIO.OUT instead of GPIO.IN
- Calling GPIO.input() instead of GPIO.setup() to configure pin
- Trying to write output to sensor pin
Master "gpiozero Library" in Raspberry Pi
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