[Solved] What does the GPIO.cleanup() function do in the RPi.GPIO library? — Ans: It resets all GPIO pins used by the program to their default state | Raspberry Pi

Raspberry Pi - GPIO Basics with Python

What does the GPIO.cleanup() function do in the RPi.GPIO library?

AIt resets all GPIO pins used by the program to their default state

BIt sets the GPIO pins to output mode

CIt initializes the GPIO library

DIt disables the Raspberry Pi's GPIO functionality permanently

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of GPIO.cleanup()
This function is used to reset the GPIO pins that the program has used back to their default state to avoid conflicts in future use.
Step 2: Compare options with the function's purpose
Only It resets all GPIO pins used by the program to their default state correctly describes this reset behavior. Other options describe unrelated actions.
Final Answer:
It resets all GPIO pins used by the program to their default state -> Option A
Quick Check:
GPIO.cleanup() resets pins = A [OK]

Quick Trick: Always call GPIO.cleanup() to reset pins after use [OK]

Common Mistakes:

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