Empower the Visually Impaired with a Smart Blind Stick!

How to make a Smart Stick for Blind Peop

Jul 5, 2023

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Components and supplies

Active Buzzer 5V (HXD)

micro switch

SMD Vibration Motor

10 jumper wires 150mm male

Arduino Nano

Ultrasonic Sensor - HC-SR04

9V Battery with clip

Tools and machines

Wooden Stick

Hot glue gun (generic)

Apps and platforms

Arduino IDE 2.0 (beta)

Project description

Code

Arduino Code

upload the code to nano

1// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
2// Smart Stick for Blind peoples //
3// By MOHD SOHAIL //
4
5const int trigPin = 3;
6const int echoPin = 2;
7const int buzzer = 5;
8const int motorPin = 6;
9
10
11long duration;
12int distance;
13int safetyDistance;
14
15
16void setup() {
17pinMode(trigPin, OUTPUT); 
18pinMode(echoPin, INPUT); 
19pinMode(buzzer, OUTPUT);
20pinMode(motorPin, OUTPUT);
21Serial.begin(9600); 
22}
23
24
25void loop() {
26
27digitalWrite(trigPin, LOW);
28delayMicroseconds(2);
29
30
31digitalWrite(trigPin, HIGH);
32delayMicroseconds(10);
33digitalWrite(trigPin, LOW);
34
35
36duration = pulseIn(echoPin, HIGH);
37
38
39distance= duration*0.034/2;
40
41safetyDistance = distance;
42if (safetyDistance <= 30){
43  digitalWrite(buzzer, HIGH);
44  digitalWrite(motorPin, HIGH);
45}
46else{
47  digitalWrite(buzzer, LOW);
48  digitalWrite(motorPin, LOW);
49}
50
51
52Serial.print("Distance: ");
53Serial.println(distance);
54}

// https://www.youtube.com/channel/UCaXI2PcsTlH5g0et67kdD6g  //
// Smart Stick for Blind peoples //
// By MOHD SOHAIL //

const int trigPin = 3;
const int echoPin = 2;
const int buzzer = 5;
const int motorPin = 6;


long duration;
int distance;
int safetyDistance;


void setup() {
pinMode(trigPin, OUTPUT); 
pinMode(echoPin, INPUT); 
pinMode(buzzer, OUTPUT);
pinMode(motorPin, OUTPUT);
Serial.begin(9600); 
}


void loop() {

digitalWrite(trigPin, LOW);
delayMicroseconds(2);


digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);


duration = pulseIn(echoPin, HIGH);


distance= duration*0.034/2;

safetyDistance = distance;
if (safetyDistance <= 30){
  digitalWrite(buzzer, HIGH);
  digitalWrite(motorPin, HIGH);
}
else{
  digitalWrite(buzzer, LOW);
  digitalWrite(motorPin, LOW);
}


Serial.print("Distance: ");
Serial.println(distance);
}

Downloadable files

Circuit Diagram

Make connections

smart_blind_stick_o0BIYqO3jB (1).png

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jarvis08

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