arduino with ultra sonic and RGB led in tamil

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codings for this video

#define trig 8
#define echo 9
int red = 10, green = 11,blue = 12;
void setup() {
  Serial.begin(9600);
  pinMode(trig,OUTPUT);
  pinMode(echo,INPUT);
  pinMode(red,OUTPUT);
  pinMode(blue,OUTPUT);
  pinMode(green,OUTPUT);
}

void loop() {
  long duration , distance;
  
  digitalWrite(trig,LOW);
  delay(2);
  digitalWrite(trig,HIGH);
  delay(2);
  digitalWrite(trig,LOW);
  
  duration= pulseIn(echo,HIGH);
  distance=(duration/2)/29.1;
  Serial.println(distance);

  if(distance <= 10)
  {
    digitalWrite(red,LOW);
    digitalWrite(blue,LOW);
    digitalWrite(green,HIGH);
  }
  else if(distance <= 15)
  {
    digitalWrite(red,LOW);
    digitalWrite(blue,HIGH);
    digitalWrite(green,LOW);
  }
  else if(distance <= 20)
  {
    digitalWrite(red,HIGH);
    digitalWrite(blue,LOW);
    digitalWrite(green,LOW); 
  }
  else
  {
    digitalWrite(red,LOW);
    digitalWrite(blue,LOW);
    digitalWrite(green,LOW); 
  }
  
 delay(100);
  

}
---------*****************------------------****************************-----------------
copy this codings and upload that in arduino IDE directly.
connect all wires like coding.

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