On November 24, 2016 at 12:30, tweeterguy said...
Hook up a PIR to hot/neutral to switch out the hot to the outlet. Outlet output feeds a standard 12v transformer/wallwart. 12v transformer powers an LED ramp up/down unit such as this:
[Link: oznium.com]I was reading too fast and missed a possible problem with this setup. The oznium unit says it's got a constant power connection and a trigger connection. You're assuming, and you're probably right, that the unit will ramp up if you apply master power and trigger at the same moment.
This won't, however, allow the oznium unit to ramp down. To ramp down, it needs power after the trigger has been removed. This setup removes power and trigger at the same time. If you add a couple of 100,000 mfd capacitors to the supply.... then you might get a half second of ramp down.
