Smart cane

My project helps visually challenged people to walk without crashing into walls and obstacles. This help them to live freely

Jan 2, 2019

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smart appliances

security

disability reduction

Devices & Components

Arduino Nano

Pushbutton switch 12mm

Breadboard (generic)

9V Battery Clip

Wire Cable - By the Foot

Buzzer

9V battery (generic)

Jumper wires (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

Solar Cockroach Vibrating Disc Motor

Hardware & Tools

Drill / Driver, Cordless

PCB Holder, Soldering Iron

Soldering iron (generic)

Multitool, Screwdriver

Solder Wire, Lead Free

Tape Measure, Manual

Soldering iron (generic)

Wire Stripper & Cutter, 18-10 AWG / 0.75-4mm² Capacity Wires

Mastech MS8217 Autorange Digital Multimeter

Software & Tools

Arduino IDE

tinkercad

Project description

Code

code

c_cpp

1#define trigPin 13
2#define echoPin 12
3#define motor 7
4#define  buzzer 6
5
6void setup()
7{ pinMode(trigPin, OUTPUT);
8pinMode(echoPin,  INPUT);
9pinMode(motor, OUTPUT);
10pinMode(buzzer,OUTPUT);
11}
12
13void loop()
14{  long duration, distance;
15digitalWrite(trigPin, LOW); 
16delayMicroseconds(2);  
17digitalWrite(trigPin, HIGH);
18delayMicroseconds(10); 
19digitalWrite(trigPin,  LOW);
20
21duration = pulseIn(echoPin, HIGH);
22distance = (duration/2) / 29.1;
23
24if  (distance < 70) // Checking the distance, you can change the value
25{ 
26digitalWrite(motor,HIGH);  // When the the distance below 100cm
27digitalWrite(buzzer,HIGH);
28} else
29{
30digitalWrite(motor,LOW);//  when greater than 100cm
31digitalWrite(buzzer,LOW); 
32} delay(500);
33}

#define trigPin 13
#define echoPin 12
#define motor 7
#define  buzzer 6

void setup()
{ pinMode(trigPin, OUTPUT);
pinMode(echoPin,  INPUT);
pinMode(motor, OUTPUT);
pinMode(buzzer,OUTPUT);
}

void loop()
{  long duration, distance;
digitalWrite(trigPin, LOW); 
delayMicroseconds(2);  
digitalWrite(trigPin, HIGH);
delayMicroseconds(10); 
digitalWrite(trigPin,  LOW);

duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1;

if  (distance < 70) // Checking the distance, you can change the value
{ 
digitalWrite(motor,HIGH);  // When the the distance below 100cm
digitalWrite(buzzer,HIGH);
} else
{
digitalWrite(motor,LOW);//  when greater than 100cm
digitalWrite(buzzer,LOW); 
} delay(500);
}

Downloadable files

blind's eye

This circuit diagram is made with the help of tinkercad

blind's eye

This circuit diagram is made with the help of tinkercad

blind's eye

Documentation

blog_w25NgsnSMa.docx

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saurabhrobotic

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