[Solved] Why is it important to call GPIO.cleanup() at the end of a Raspberry Pi GPIO program? — Ans: It resets the GPIO pins to a safe state for future use. | Raspberry Pi

Raspberry Pi - GPIO Basics with Python

Why is it important to call GPIO.cleanup() at the end of a Raspberry Pi GPIO program?

AIt resets the GPIO pins to a safe state for future use.

BIt speeds up the program execution.

CIt increases the voltage output of the pins.

DIt disables the Raspberry Pi's network connection.

Step-by-Step Solution

Solution:

Step 1: Understand GPIO pin states
GPIO pins can remain set as input or output after a program ends, which may cause issues.
Step 2: Purpose of GPIO.cleanup()
Calling GPIO.cleanup() resets all pins to their default safe state, preventing conflicts in future programs.
Final Answer:
It resets the GPIO pins to a safe state for future use. -> Option A
Quick Check:
GPIO.cleanup() resets pins = B [OK]

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

Common Mistakes:

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