Technology is used for a good thing and can certainly help human inability. With this in mind. This Smart Blind Stick has two ultrasonic sensors for detecting distances from any obstacle in wide range. The piezo buzzer is used to alarm the blind men when there are any obstacles detected within the 10cm range.
This video will show you how to make a smart blind stick.
This is the hardware connection and the components needed.
Thank you for reading this tutorial and we hope it helps your project development. If you have any technical inquiry, please post at Cytron Technical Forum.