Blind Spot is an area of the road that cannot be seen by the driver while looking forward or through either the rear-view or side mirrors. Such Blind Spot Detection System are already present in many cars. In this project the ATmega169 uses a high-intensity infrared light to detect approaching vehicles. Although the system works, i would only recommend you build it for testing purposes, not for long therm use. Why not use it for long therm ? Well no one guarantees that the system would not fail.
May 11th, 2008