I want to detect human type people in a room or in a basement. The Ultimate design criteria is a low false positive alarm. After that,=20 it's size, power usage and cost. Regards, Art On 03/15/2013 06:03 AM, Yigit Turgut wrote: > What is the scale of the motion you want to detect ? > > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .