[Solved] What does the PWMLED class control on a Raspberry Pi? — Ans: The brightness of an LED by changing how long it is on and off quickly | Raspberry Pi

Raspberry Pi - gpiozero Library

What does the PWMLED class control on a Raspberry Pi?

AThe speed of the Raspberry Pi fan

BThe color of an LED by mixing red, green, and blue lights

CThe temperature of the Raspberry Pi CPU

DThe brightness of an LED by changing how long it is on and off quickly

Step-by-Step Solution

Solution:

Step 1: Understand PWMLED purpose
PWMLED is used to control LED brightness by adjusting the time it stays on and off rapidly.
Step 2: Compare options
Only The brightness of an LED by changing how long it is on and off quickly describes brightness control using on/off timing, which matches PWMLED's function.
Final Answer:
The brightness of an LED by changing how long it is on and off quickly -> Option D
Quick Check:
PWMLED controls brightness = A [OK]

Quick Trick: PWM means brightness by fast on/off timing [OK]

Common Mistakes:

Master "gpiozero Library" in Raspberry Pi

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