Assistive Device For Visually Impaired People By Using Ultrasonic Sensors

The visually impaired people need some aid to walk and move safety in their surroundings. The ordinary people cannot know how hard it is to live and move in daily life for the blindness the visually impaired people and the old person who has poor vision. Although the sighted people cannot help the blindness to regain the eyesight the visually impaired one can try to make easier the daily routine by using the assistive device that can detect the obstacles near the blindness and the visually impaired people and warn the alert to the users before accidence. This assistive device like walking stick contains ultrasonic sensors PIC microcontroller Peripheral Interface Controller LDR vibrator servo motor buzzer and LED. Ultrasonic sensors are used for sensing and detecting the obstacles near the user to avoid the dangerous condition. Vibrator and buzzer are used for providing the alert to know that the obstacle is near. Servo motor is used for turning the wheel easily without effort. LDR and LED is used for lighting in low light room and at night to know the ordinary or sighted people where the walking stick is so this assistive device will be safe from the other peoples hit.