Sound Guided Blind Navigation
The objective of this project is to assist the blind by audio response and thus creating a better navigation aid for
blind. This paper discusses the detection of obstacle infront of the blind and gives instruction accordingly. A voice recorder
IC has been used for producing the audio response. It also includes an RFID which notifies the blind about the destination of
the bus arrived at the bus stop and thus helping them to travel easily by bus.
Index Terms— Ultrasonic sensor, PIC, Text to speech converter, RF ID tag and reader.