How to make a smart & intelligent blind stick.

how to make smart blind stick.



      Today we are going to make an Intelligent blind stick for blind people. Their life is always depending on others. They can’t walk without the help of others.
Using this intelligent blind stick, a blind person can walk without any helps. The intelligent blind stick automatically detects the obstacle and water in front of the person and gives him a response to the person by a warning sound and vibrating the stick. The person can also find his/her stick with the help of a remote. Through this intelligent blind stick, the blind person can aware the any obstacles and water in front of him.
How to make intelligent blind stick (part-01)
watch the video....


Here are the parts to make this project


  1.     Arduino UNO / nano/ mega/ pro any one 

  2.     Ultrasonic sensor HC-SR04.



   
  3.     433Mhz RF module.


  4.     Encoder & Decoder IC.
  5.     Vero board.
  6.     IC Base,
  7.     Vibration motor.
  8.     Buzzer.

  9.     9v battery.
  10.  Battery cap.
  11.  Transistor.
  12.  Resistor.
  13.  LED.
   
  14.  Wire
  15.  ON/OFF switch.




Other parts and tools required.


  1.     ½ inch diameter PVC pipe for making the stick.
  2.     ½ inch diameter PVC elbow.
  3.     Knife.
  4.     Soldering iron.
  5.     Soldering wire.
  6.     Glue gun.
  7.     Glue stick.
  8.     PVC tape.

watch now AI project using arduino


Arduino connection.


  1.     Ultrasonic Vcc to Arduino 5v.
  2.     Ultrasonic GND to Arduino GND.
  3.     Ultrasonic TRIG to Arduino D12.
  4.     Ultrasonic ECHO to Arduino D11.
  5.     Buzzer Red wire to Arduino D8.
  6.     Buzzer Black wire to Arduino GND.
  7.     Vibration motor Red to Arduino D7.
  8.     Vibration motor Black to Arduino GND.
  9.     9v Battery +ve to ON/OFF switch Pin-1 than Arduino
Remote control and water detector is a different circuit.

watch now

1 

Arduino Sketch.


#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)     // This is where 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);

}
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