So here's a thread that's a bit over a year old that shows precisely what I think I'm after. I have a Dell drive enclosure where I just want to pretend as though the jet-engine fans are still present. I'm not an electronics guy and don't trust myself to put together a device like pictured in the thread:
Generate Fan RPM Signal W/O Fan
Right now I literally just have a spinning fan core generating the signal to prove the concept-- but of course it's not entirely silent. And it's a bit ghetto
After googling around like a newb, I came across a couple items on ebay-- would something like either of these work?
Adjustable PWM Signal Generator Module * Output adjustable * based on NE555
1PC Nano Signal Generator Module 555 pulse frequency adjustable square wave PWM
I think people intend to use something like this to control the PWM lead / speed of the fan, but obviously my need is different. I'm not sure of the actual specs needed (V, A, frequency etc)
Do people sell something for this exact purpose? I'd gladly buy half a dozen, but just can't find the right thing.
Generate Fan RPM Signal W/O Fan
Right now I literally just have a spinning fan core generating the signal to prove the concept-- but of course it's not entirely silent. And it's a bit ghetto
After googling around like a newb, I came across a couple items on ebay-- would something like either of these work?
Adjustable PWM Signal Generator Module * Output adjustable * based on NE555
1PC Nano Signal Generator Module 555 pulse frequency adjustable square wave PWM
I think people intend to use something like this to control the PWM lead / speed of the fan, but obviously my need is different. I'm not sure of the actual specs needed (V, A, frequency etc)
Do people sell something for this exact purpose? I'd gladly buy half a dozen, but just can't find the right thing.
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