The Smart Parking Lot project's goal is to create small, inexpensive wireless devices that can be placed on individual parking spots within a large parking structure, each capable of lasting five years on a single charge. Each device contains a vehicle-detecting sensor that can detect whether a car is parked in its spot. The devices are all connected using a low-power communication protocol to a central gateway device. This gateway device propagates sensor data to the Internet, allowing users to view parking spot availability and be guided to an open spot through a mobile application or website.