I am looking for a VERY short-range PIR Sensor. I am looking for a PIR sensor which ONLY detects motion within a range of about three inches (3"). I want to make a light switch for my daughter's closet which responds to waiving my hand in front of the sensor --- waive a hand in front of the sensor, and the closet light goes on; waive a hand in front of the sensor again, and the light goes off. This is to replace the regular standard togle light switches you find in most homes. The reason I want to do this, is that my daughter, often, leaves the light on in her walk-in closet. I want to connect a PIR sensor INSIDE the closet to turn off the light when no one is in the closet; however, if I do that with a standard togle, light switch, the switch will be in the up position [ON] when someone comes back to turn on the light again. So, if I replace the standard togle, light switch with a small PIR sensor (which responds to a waive of a hand over the sensor), the light in the closet will go on when someone waives their hand over the short-range PIR sensor [I should mention that the light switch for the closet is on the OUTSIDE of the closest -- before one enters the closet]. Again, to activate the switch, I want to waive my hand over the PIR sensor. Then, the light will go on. I will have another standard PIR sensor INSIDE the closet which will turn off the light if no one is in the closet for a specified amount of time. Then, later in the day, when someone wants to turn the closet light on, they just have to waive their hand in front of the PIR sensor located on the wall outside the closet; and the routine will repeat itself. The PIR sensor on the outside of the closet (to turn the light on) has to be VERY short-range so that it doesn't pick up any of the usual motion in my daughter's bedroom -- again, just long enough (and ONLY long enough) to pick up a waive of the hand in front of the sensor (3-4 inches). I am going to wire the OUTSIDE PIR sensor so that a waive of the hand will turn the light ON or OFF depending on its status (already ON, or already OFF).
Thanks for your input!
Richard
