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Overview
This project uses an ultrasonic sensor module to detect objects in front of it. The sensory output from the ultrasonic module is used to trigger the rotation of the servo motor. The degree of rotation of the motor is directly proportional to the distance of the object from the ultrasonic module. This can be further calibrated to calculate the actual distance of the object from the module.
This project can be further miniaturized and fixed on equipments such as glasses and walking sticks. The servo motor can be fixed with Braille readings which can be used to determine the approximate distances of obstacles from a blind person.