Android based traffic signal Light System with Bluetooth override using 8051 Based Microcontroller

Get this project kit at: http://www.smartkitprojects.com/android-based-traffic-signal.html Android based traffic signal Light System if there is any emergency then traffic police can override normal traffic signal to current condition and keep other lane as Red Signal by using just normal android application. when at the time of emergency if there is urgent need of stopping the traffic and controlling it is done by the android phone .