Touch sensitive worm using Arduino Uno

​Hey guys, after a long time I am writing. I hope you guys are all good. Today I am writing an easy project but you will get fun from it, confirmed! 

Required Components:-

​1.Arduino Uno

2.LDR(light dependent resistor)

3.LED (10 pieces)

4.Resistor(100 ohm and 100K)

5.Male to Male jumpers

6.Bread board

Attach all of them according to the picture-

Required Code:-

int LDRvalue=0;

int LDRsensitivity=400;

void setup() {

pinMode(13,OUTPUT);

pinMode(12,OUTPUT);

pinMode(11,OUTPUT);

pinMode(10,OUTPUT);

pinMode(9,OUTPUT);

pinMode(8,OUTPUT);

pinMode(7,OUTPUT);

pinMode(6,OUTPUT);

pinMode(5,OUTPUT);

pinMode(4,OUTPUT);

Serial.begin(9600);

}

void loop() {

  int i=13;

  int j=12;

  for(int k=0;i<=13&&i>=4&&j<=12&&i>=4;k=k+1){

    LDRvalue=analogRead(A0);

    Serial.println(LDRvalue);

    if(LDRvalue>LDRsensitivity){

    Serial.println(i);

    Serial.println(j);

    digitalWrite(i,HIGH);

    digitalWrite(j,HIGH);

    delay(100);

    digitalWrite(i,LOW);

    digitalWrite(j,LOW);

    i=i-1;

    j=j-1;

    delay(100);

    }

    else{

    Serial.println(i);

    Serial.println(j);

    digitalWrite(i,HIGH);

    digitalWrite(j,HIGH);

    delay(100);

    digitalWrite(i,LOW);

    digitalWrite(j,LOW);

    i=i+1;

    j=j+1;

    delay(100);

    }

  }

}

   See my video on youtube:-

https://www.youtube.com/watch?v=Va5CYY5J55A

Thank you.