• The project main idea is to develop an application which can prevent accident caused by vehicle by providing information about position of the vehicle. • The information about position of the vehicle Infront of the host vehicle is given by using ultrasonic sensor in this project. • Ultrasonic sensor calculate the time interval between sending the signal and receiving the echo to determine the distance of the obstacle infront of the host vehicle. • After finding the distance, ultrasonic sensor which is interfaced to the controller gives acknowledgement in the LCD by activating the alarm which is also interfaced to the controller.