Shrewd Walking Crutch for Visually Impaired Person

Nowadays everyone in this world is in a race of achieving success, so for the betterment and welfare of the blind person, many gadgets are invented. In such a way this paper describes a new gadget which will improve the navigation of blind person from one place to another and it will also helps the blind person to walk on the roads very safely by making awareness with an alarm for the obstacle or hurdles ahead in the path. This project helps to detect the obstacles with distances up to 10 cm by using HC-SR04 ultrasonic sensor. The distances are displayed in the 16× 2 LCD display. The blind people are alerted by the buzzer sound when obstacles are detected. Then the SOS button is pressed by the bind people when they feel that they are in danger situation. GSM SIM900A will transfer messages and emergency calls to their family members with help of a UART. The location will be shared to their family members with help of Wi-Fi via GPRS. The GPRS is also used to store the information in CLOUD and retrieve it later. This project will help the blind people to locate the places, to detect the obstacles and in some emergency situations. Our main aim of this project is to provide safe and secure for the blind people in the society.