In today’s world millions of people are having problem of vision. According to the recent survey of WHO about 289 million of peoples are visually impaired. This problem make them dependent on others. Recent studies shows that about 108 different methods are used for the aid of mobility of the visually impaired people. In this project we will make the use of Ultrasonic sound to enhance the obstacle detection for the blind people within the range of 3m to 4m. The project is made by inspiring from the natural navigation system of a mammal called Bat. Although the navigation for blind using ultrasonic is a complex process but here we will present only the hurdle detection procedure. The project make the use of UNO Arduino processor, ultrasonic sensors, 5V Buzzer, Arduino cable for burning, and some connecting wires. All this setup will be arranged on a cap, which the visually impaired person will wear. The ultrasonic emitter emit ultrasonic sound of high frequency which is perceived by the ultrasonic receiver after reflection from the obstacle and then passed to the processor for further necessary action in the form of some sound.
Keywords: WHO, UNO Arduino processor, 5V buzzer, Ultrasonic sense