[Solved] Identify the error in this Raspberry Pi Python code snippet for controlling an LED:GPIO.setmode(GPIO.BCM) GPIO.setup(12, GPIO.OUT) GPIO.output(12, HIGH) | Raspberry Pi

Raspberry Pi - LED and Button Projects

Identify the error in this Raspberry Pi Python code snippet for controlling an LED:

GPIO.setmode(GPIO.BCM)
GPIO.setup(12, GPIO.OUT)
GPIO.output(12, HIGH)

AGPIO.setup is missing pin number

BNo error; code is correct

CGPIO.setmode should be called after output

DHIGH is not defined; should be GPIO.HIGH

Step-by-Step Solution

Solution:

Step 1: Check GPIO.output parameters
The second argument must be GPIO.HIGH or GPIO.LOW, not just HIGH.
Step 2: Verify code correctness
Using HIGH alone causes a NameError because it's undefined.
Final Answer:
HIGH is not defined; should be GPIO.HIGH -> Option D
Quick Check:
Use GPIO.HIGH, not HIGH alone [OK]

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

Common Mistakes:

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