Which of the following is the correct syntax to start PWM on GPIO pin 12 with a frequency of 500 Hz using RPi.GPIO?

easy📝 Syntax Q3 of 15

Raspberry Pi - PWM Output

Apwm = GPIO.PWM(12, 500)

Bpwm = GPIO.PWM(500, 12)

Cpwm = GPIO.startPWM(12, 500)

Dpwm = GPIO.PWMStart(12, 500)

Step-by-Step Solution

Solution:

Step 1: Recall PWM initialization syntax
RPi.GPIO PWM is started with GPIO.PWM(pin_number, frequency).
Step 2: Check option correctness
Only pwm = GPIO.PWM(12, 500) matches the correct syntax; others have wrong method names or argument order.
Final Answer:
pwm = GPIO.PWM(12, 500) -> Option A
Quick Check:
PWM syntax = GPIO.PWM(pin, freq) [OK]

Quick Trick: PWM starts with GPIO.PWM(pin, frequency) [OK]

Common Mistakes:

Master "PWM Output" in Raspberry Pi

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