This Arduino based Smart blind stick will have three Ultrasonic sensors connected in left, right, and center to sense distance from any obstacle, a JQ6500 Voice Sound Module to give warning signal, and a 9V battery to power the setup.
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The flow diagram of the indoor prototype of the smart stick of visually
PDF) SMART BLIND STICK USING ARDUINO
Figure 3 from Smart Walking Stick for Visually Impaired People Using Ultrasonic Sensors and Arduino
Smart Blind Stick for Visually Impaired People
