Albany, NY

Albany is the capital city of the U.S. state of New York, the seat of Albany County, and the central city of New York’s Capital District. Roughly 135 miles (217 km) north of the City of New York, Albany sits on the west bank of the Hudson River, about 10 miles (16 km) south of its confluence with the Mohawk River. The population of the city was 97,856 at the time of the 2010 census.

http://en.wikipedia.org/wiki/Albany,_New_York

How PIR Sensor Works and How To Use It with Arduino

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PIR Sensors can be used with anything that you need to detect motion. The modules I ordered from China were under buck a piece, and seem to work fine, although I think I will need to add a pull-up resistor for them to work properly with my lighting module.

Passive Infrared Receiver (PIR) sensor review, test & how to use

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I ordered three of these from a supplier in China for $3 or 98 cents a piece. I was going to order them from an American vendor for a slightly more, but I accidentally left them off my previous order, this was cheaper and I was in no rush to get them. I am going to use one of them with my LED lighting strip, so that the lights turn off automatically when I'm not in the room to save power. And I might also use them so they come on automatically in the evening -- but only if I am home. PIR are very easy to use, they are a self-contained module, that simply pulls a pin high for a period of time after a person is detected.