Automatic head-on anti-collision system for vehicles using wireless communication

A model of an anti-collision system for vehicles was designed, in a way that to avoid head-on collisions only. Two small motorized cars were built. Each car consist of Arduino microcontroller, ultrasonic sensor module, RF module and two DC geared motors. Each car is driven by a couple of DC motors from the rear end while the front is only a castor. As a form of differentiation each car was given the name of its Arduino controller which are Mega car, and Leonardo car. The controller of each car measures the distance ahead continuously using the ultrasonic module and checks the measured distance against the respective car´s ahead distance through the wireless module. If the received distance found to be less than 40cm for the Leonardo car and less than 50cm for the Mega car then the two cars will stop their movement completely as if there is an impending collision in reality. The Arduino microcontroller is programmed using the Arduino programming language and C language to implement all the desired objectives which are related to each car´s actions.