Make Your Own Infrared Security System Using a Simple Webcam. You just need a simple webcam, preferably the cheap ones. You would also need some used film negatives, a couple of high intensity infrared LEDs which you can get from any electronics store for less than a dollar, a power device for your LED lights which you can get for less than ten dollars, some cardboard, polarity wires, an electronic bread board, and tools like a soldering. Now, you have a working assembly of a near infrared security camer.

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