Is it possible to build a switch that turns on and off a circuit...but the switch goes dead if the PIR sensor detects motion (so you can not run over and shut it off if the PIR is detection motion)...but when no motion, you can turn it on and off with no issues (off using little to no battery power)…

Building a switch that "goes dead" in certain states....

codejoy October 12, 2012, 8:22pm 7

actually a mosfet might be the answer

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