Vibration and voice operated navigation system for visually impaired person

Usually blind people use white canes which are very limited in its ability to provide navigation assistance to the user and cannot easily detect obstacles. Mobility of visually impaired people is limited by their inability to perceive their surroundings. Therefore the purpose of this project is to build a navigation system that will be able to guide a visually impaired person safely and with ease, in an indoor and outdoor environment. This goal has been realized through the use of an ultrasonic device to determine the range of obstacles and also a microcontroller to act accordingly. The system includes a warning system through voice rendering and through generation of vibration.