Howdy All! I've been a lurker here for almost a decade... Figured I might as well create an account and ask a question. I have a blower unit in my rack to keep it temperature controlled. It is a simple 120v direct plug-in fan. I've attached it to a potentiometer, to control the rate at which it moves air. I'd love to be able to control this via IP, as currently, if it gets too warm for a stretch of a few days, I need to physically be around to turn the knob on the potentiometer. Any ideas for a device like this that may exist?