I need help to make a program on ARDUINO software to detect a presence, an intruder, a security system infrared radar. Was my require that the detection is done in such a way that four areas is defined on the whole surface of a room and when an intruder enters a of these areas, an LED lights up, and…

Help detection program

system January 27, 2013, 6:53pm 4

it is positioned in corner of a room and sweep of 45 degrees.

The code to do that looks like?