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UPDATE: Heh told you I was a n00b.... now starting to understand. The optoisolator is essential. What you are doing is using the Pi's native PWM to generate the PWM waveform (or whatever it is called) at 3.3V on some of the GPIO pins. This is going into the optoisolator as PWM input, and is...

Thanks Shimbob, yeah I gathered that my 10V would come from the Cloudline thanks to your earlier excellent work. Looking at the photos in your thread I see 2 optoisolators which I presume are for safety and not absolutely necessary. What is the actual device that drives the PWM on the Cloudline...

Hi guys, I've been searching for how to do this as I'm considering buying both a S4 and a S6 and want to fully control them. Looking at the specs on Amazon the fan has a standard molex connector. I'm a programmer by trade and have a Raspberry Pi, Relays and some fun LED stuff on order. Tutorials...

Hi, I'm an ex-pat living in South America. We have great food, great girls and unfortunately normally crappy "paraguayo prensado" (pressed paraguay mix of what is supposedly marijuanna plants, with probably oil and piss too!) when one is unable to obtain flowers. But things are changing, in...