[Solved] What is the issue with this PWM code snippet?import RPi.GPIO as GPIO GPIO.setmode(GPIO.BCM) GPIO.setup(16, GPIO.OUT) pwm = GPIO.PWM(16, 2000) pwm.start(-10) | Raspberry Pi

Raspberry Pi - PWM Output

What is the issue with this PWM code snippet?

import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(16, GPIO.OUT)
pwm = GPIO.PWM(16, 2000)
pwm.start(-10)

AGPIO pin 16 cannot be used for PWM

BThe frequency value is too high for PWM

CThe duty cycle value is invalid because it is negative

DThe GPIO mode should be BOARD instead of BCM

Step-by-Step Solution

Solution:

Step 1: Check duty cycle value
The duty cycle must be between 0 and 100 inclusive.
Step 2: Identify invalid value
Here, the duty cycle is -10, which is invalid.
Final Answer:
The duty cycle value is invalid because it is negative -> Option C
Quick Check:
Duty cycle range check [OK]

Quick Trick: Duty cycle must be 0-100% only [OK]

Common Mistakes:

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What is the issue with this PWM code snippet?