Smart Stick for Blind Peoples

Smart Blind Stick

Feb 7, 2021

•

72776 views

•

6 respects

Components and supplies

Buzzer

Arduino Nano R3

9V battery (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

9V Battery Clip

Pushbutton Switch, Momentary

Tools and machines

Wooden Stick

Hot glue gun (generic)

Apps and platforms

Arduino IDE

Project description

Code

arduino

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}
55

// 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);
}

Code

arduino

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}
55

// 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

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