What are the best sensors to be used in smart stick (cane) for

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How to Make a Smart Cane for the Visually Impaired With Arduino

SMART BLIND STICK USING ARDUINO

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Figure 5 from Smart cane with range notification for blind people

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Best Ultrasonic Sensor Projects Using Arduino

PDF) Smart Walking Stick for Visually Impaired People Using Ultrasonic Sensors and Arduino

Figure 2 from A Multidimensional Walking Aid for Visually Impaired

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