Development of an ultrasonic cane as a navigation aid for the blind people

The current study deals with the development of an ultrasonic based cane for the navigation of the blind persons. The developed cane is able to detect both aerial and ground obstacles and potholes (drop-off). The ultrasonic signals are acquired in the Arduino microcontroller, classified and control signals are generated. The control signals are transmitted wirelessly to the receiving device, kept in the shoulder pocket. The receiving device consists of another Arduino microcontroller which triggers 3 speaker panel (worn around the chest) and 3 LED panel. The device works in the range of 5-150 cm and may be used as a navigational aid for the blind persons.