Blind's Aid

Helps blind walk without stick. Very cheap and effective :-) :-).

Installed in cap to keep your hand free!!!

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Step 1: Things Required

  1. Arduino UNO
  2. Ultrasonic Module HC-SR-04
  3. Jump Wires (F to M)
  4. Jump Wires (M to M)
  5. Connecting Wire ( to connect Arduino to Computer to Program it)
  6. Buzzer
  7. A Cap
  8. Breadboard ( Not much needed)

Step 2: Connections

  • Connect the "Trig" pin of sensor to pin 9 of Arduino
  • Connect the "Echo" pin of sensor to pin 8 of Arduino
  • Power the sensor
  • Connect the "-ive" of buzzer to "Gnd" of Arduino
  • Connect the "+ive" of the buzzer to pin 10 of Arduino

Step 3: Programming Code

Write a code by yourself if you wish so or i have the code.It is below:-

Step 4: Finishing Touch

Now attach this to cap such that the sensor is in the front side of the cap.

Circuits Contest 2016

Participated in the
Circuits Contest 2016

1 Person Made This Project!


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    Made with Math Contest
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8 Discussions


1 year ago

hi i was wandering what if the blind man face asmall ditch on the pedistralian road or any hole

Afnas PB

1 year ago

can i get the code for arduino in any language???


3 years ago

Interesting idea. Have you by any chance had a blind person try it out? I'd be curious about their feedback.

Thanks for sharing this!

2 replies
Crazy E-Hubseamster

Reply 3 years ago

Thanks for your reply. I have made a blind try this and it worked out inside house nut outside it is not possible with small rage distance sensor. instead of the sensor that i use can be replaced by some long range sensor then it can be a perfect solution for visually impaired persons