[Solved] Identify the error in this code snippet for blinking an LED on pin 8:import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BOARD) GPIO.setup(8, GPIO.OUT) while True: GPIO.output(8, HIGH) time.sleep(0.... | Raspberry Pi

Raspberry Pi - Platform

Identify the error in this code snippet for blinking an LED on pin 8:

import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BOARD)
GPIO.setup(8, GPIO.OUT)
while True:
    GPIO.output(8, HIGH)
    time.sleep(0.5)
    GPIO.output(8, LOW)
    time.sleep(0.5)

AGPIO.setup is missing pin mode

BHIGH and LOW are not prefixed with GPIO

Ctime.sleep is used incorrectly

DGPIO.setmode is called after setup

Step-by-Step Solution

Solution:

Step 1: Check constants usage
Constants HIGH and LOW must be used as GPIO.HIGH and GPIO.LOW.
Step 2: Identify missing prefix
The code uses HIGH and LOW without GPIO., causing a NameError.
Final Answer:
HIGH and LOW are not prefixed with GPIO -> Option B
Quick Check:
Use GPIO.HIGH and GPIO.LOW constants correctly [OK]

Quick Trick: Always prefix HIGH/LOW with GPIO [OK]

Common Mistakes:

Forgetting GPIO prefix
Misusing sleep
Wrong setup order

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More Raspberry Pi Quizzes

Identify the error in this code snippet for blinking an LED on pin 8:

Step 1: Check constants usage

Step 2: Identify missing prefix

Final Answer:

Quick Check:

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