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Joined 2 months ago
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Cake day: August 19th, 2026

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  • Don’t be sorry because you’re not wrong and dude was just being a dick for no reason. Also a PWM signal is not a complex concept and it certainly doesn’t require any degree at all to understand.

    Simply put: you have an additional pin carrying the PWM signal, which is a simple squarewave. How much of that wave is high during a period is called the duty cycle and regulates the fan speed. Eg. if for 75% of the period the signal is high, then the duty cycle is 75%.

    So, while the phrase “they spin what they are ordered to do by the PWM” is not particularly well worded, it’s also technically not wrong.

    I really wish people would share their knowledge, instead of gatekeeping it to feel superior.