Has anyone seen, or does anyone have any ideas on how to make a module that will sense current, and let ST know the device is running, amount of power being used?
Here is my concept/issue: I have a gas dryer, that has an auxiliary fan in the exhaust duct, since it is such a long run. The problem is the pressure switch on the fan that is supposed to run the fan ONLY when the dryer runs, does not work very well, so the fan run constantly in the winter, even when the dryer is not running.
What I want is a way to “sense” that the dryer is running, and then “turn on” the auxiliary fan power with ST. The turn on/off is easy, but I need a module that a 120VAC appliance can plug into, that will tell ST if the device is on or off, or can sense the current flow thru it.
I’ve got to believe there are ton of other uses for such a thing. Something you can plug an appliance in to, and have it output to ST the amount of current it is drawing. Thus, you could tell if something is running or not, or you could monitor power usage throughout your house.
I’m not a EE, so the electronics thing is a mystery to me.