Hello I do not know how to do this but trying to find a way to slowly brighten a led strip these are white leds 50/50 strip when the someone walks past this sensor the HC-SR501 PIR Infrared Motion Sensor i got it from ebay http://www.ebay.com/itm/HC-SR501-PIR-Infrared-Motion-Sensor-Detector-Arduino-…

HC-SR501 PIR Infrared Motion Sensor

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