[Solved] What will be the output behavior of this code snippet? from gpiozero import PWMLED import time led = PWMLED(17) led.brightness = 0.2 time.sleep(2) led.brightness = 0.8 time.sleep(2) led.off() | Raspberry Pi

Raspberry Pi - gpiozero Library

What will be the output behavior of this code snippet?

from gpiozero import PWMLED
import time
led = PWMLED(17)
led.brightness = 0.2
time.sleep(2)
led.brightness = 0.8
time.sleep(2)
led.off()

ALED glows dimly for 2 seconds, then brightly for 2 seconds, then turns off

BLED glows brightly for 2 seconds, then dimly for 2 seconds, then turns off

CLED stays off the whole time

DCode causes an error because brightness is set incorrectly

Step-by-Step Solution

Solution:

Step 1: Analyze brightness settings
First brightness is 0.2 (dim), then after 2 seconds it changes to 0.8 (bright).
Step 2: Understand timing and off command
Each brightness level lasts 2 seconds, then LED is turned off.
Final Answer:
LED glows dimly for 2 seconds, then brightly for 2 seconds, then turns off -> Option A
Quick Check:
Brightness changes 0.2 to 0.8 then off = A [OK]

Quick Trick: Brightness values control glow level over time [OK]

Common Mistakes:

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What will be the output behavior of this code snippet?