Obstacle Sensing Walking Stick for Visually Impaired Persons

pic16f877a based smart stick for visually impaired persons

This project is designed to guide a visually impaired person to walk and avoid bumping into obstacles. Low cost ultrasonic rangefinders along with a microcontroller is used to measure the distance to obstacles and if they are close enough provide a feedback to the user in form of beeps or vibrations.

The project is made on a small single layer PCB. The sensors are not mounted on the PCB but they are mounted on front of the stick and connected to the main board using wires. All the parts of project PCB is shown in the image below.

pic16f877a project pcb

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Avinash

Avinash Gupta is solely focused on free and high quality tutorial to make learning embedded system fun !

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22 thoughts on “Obstacle Sensing Walking Stick for Visually Impaired Persons

  • By Uttam Dutta - Reply

    Again an exciting application, When objective of any work/Job direcly for better living or making a good earth, it becomes great. Thank you again.

    • By Avinash - Reply

      @Uttam Dutta,

      Thank you 🙂

  • By Jayaprakash - Reply

    Awesome Project Avinash. Congratulations . Very Useful

    • By Avinash - Reply

      @Jayaprakash

      Thank you

      • By Ansuman -

        Sir we are doing your project as our science exhibition project so I need your help in making the prototype

  • By rahul nikam - Reply

    plz send me HEX file of this project

  • By G NAGESWARA RAO - Reply

    My cousins
    urgently need two sensing walking sticks as they are visually impaired. Can you please inform me where these sticks are available for purchase and what is the cost of each stick. G N Rao

    • By Avinash - Reply

      @Mr NAGESWARA RAO,

      Sorry, but I have NOT manufactured these sticks on commercial scale. I just made prototype circuit and programming.

  • By Sai - Reply

    Hi Avinash. Can I get to see the video tutorial of the making of this project?
    TIA

  • By Jebas - Reply

    Hello friend I want this ultra sonic stick please send price details

  • By rich - Reply

    hi,this post is quite useful.Please help me with this. I am working on obstacle masurement and i have to connect 4 hc sr04 ultrasonic range finder with Microcontroller At89S52. please provie the circuit diagram for it. Please provide as soon as possible.

  • By richa - Reply

    hi,this post is quite useful.Please help me with this. I am working on obstacle masurement and i have to connect 4 hc sr04 ultrasonic range finder with Microcontroller At89S52. please provie the circuit diagram and program for it. Please provide a reply as soon as possible.

  • By aman kumar - Reply

    hello,
    sir i made this circuit but my sonar sensors are not any obstacle
    pls suggest me whether may be a problem
    i done all connection same as there shown in your PCB layout
    and i used your HEX file as you uploaded to burn my microcontroller
    but my project is not working

  • By Nourah - Reply

    Can you please tell me the estimate cost of your design?

  • By Ansuman - Reply

    How to make the prototype please explain sir

    • By Avinash - Reply

      @Ansuman,

      Can you see the Read More link on the post?

      What you think it does? turns on the shower of your bathroom?

  • By Sharon - Reply

    Where can we get the model?

  • By Gurbuz Celebi - Reply

    Is this item (smart cane) is being marketed, if so where. Thank you

  • By krishnakant - Reply

    plz give us program for smart blind walking stick using pic18f4520 with following features like ldr moisture sensor and ultrasonic sensor…plz give us the program

  • By Gautam Mehta - Reply

    We need around 1000 smart sticks for blind for a ngo
    Kindly quote your rate & availability.
    Ph-9448047727
    Dhanlakshmi agencies
    Bangalore

  • By Gautam Mehta - Reply

    Please reply on 09448047727
    dhanlakshmig9@gmail.com

  • By ravina - Reply

    according to this project,can this project tell where is the obstacle means left or write

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