Which of the following is the correct Python syntax to set a PWM frequency of 500 Hz using RPi.GPIO library?

easy📝 Syntax Q3 of 15

Raspberry Pi - PWM Output

Apwm = GPIO.PWM(pin, 500)

Bpwm = GPIO.setPWM(pin, 500)

Cpwm = GPIO.PWM(500, pin)

Dpwm = GPIO.startPWM(pin, 500)

Step-by-Step Solution

Solution:

Step 1: Recall RPi.GPIO PWM syntax
The PWM object is created by GPIO.PWM(pin, frequency).
Step 2: Match syntax with options
Only pwm = GPIO.PWM(pin, 500) matches the correct order and method name.
Final Answer:
pwm = GPIO.PWM(pin, 500) -> Option A
Quick Check:
Correct PWM syntax = pwm = GPIO.PWM(pin, 500) [OK]

Quick Trick: GPIO.PWM(pin, frequency) creates PWM instance [OK]

Common Mistakes:

Master "PWM Output" in Raspberry Pi

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