Raspberry Pi - PWM Output
Which of the following is the correct Python syntax to set a PWM frequency to 1000 Hz on a Raspberry Pi GPIO pin using RPi.GPIO?
Which of the following is the correct Python syntax to set a PWM frequency to 1000 Hz on a Raspberry Pi GPIO pin using RPi.GPIO?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall RPi.GPIO PWM syntax
The correct way to create a PWM instance is GPIO.PWM(pin, frequency).Step 2: Check options for correct method and parameters
pwm = GPIO.PWM(pin, 1000) matches the correct syntax; others use invalid methods or chaining.Final Answer:
pwm = GPIO.PWM(pin, 1000) -> Option AQuick Check:
GPIO.PWM(pin, freq) creates PWM [OK]
Quick Trick: Use GPIO.PWM(pin, frequency) to set PWM frequency [OK]
Common Mistakes:
- Using non-existent methods like setPWM or frequency()
- Trying to set frequency after creating PWM without parameters
- Confusing method chaining syntax
Master "PWM Output" in Raspberry Pi
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