Hi, I don't have experience with IR led. But I want to use it for catching intruder. I know the way of using laser pointer with light dependent resistor. Can I use IR led instance of laser pointer. And I also want to know it can give the strength of light as laser (normal LED can reach as laser light). Is there any way of using IR led for catching intruder (not including PIR, I know about it). I have seen infrared ray that is like laser but can't be seen with human eye in movies, how it is work.
Thanks
Thanks