void setup() {
pinMode(D1,OUTPUT);
pinMode(D2,OUTPUT);
pinMode(D3,OUTPUT);
pinMode(D4,OUTPUT);
}
void loop()
{
digitalWrite(D1,1);
delay(500);
digitalWrite(D1,0);
delay(500);
digitalWrite(D2,1);
delay(500);
digitalWrite(D2,0);
delay(500);
digitalWrite(D3,1);
delay(500);
digitalWrite(D3,0);
delay(500);
digitalWrite(D1,1);
delay(300);
digitalWrite(D2,1);
delay(300);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
delay(300);
digitalWrite(D2,0);
delay(300);
digitalWrite(D3,0);
delay(300);
digitalWrite(D3,1);
delay(300);
digitalWrite(D2,1);
delay(300);
digitalWrite(D1,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(500);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D3,0);
delay(100);
digitalWrite(D2,1);
delay(300);
digitalWrite(D2,0);
digitalWrite(D1,1);
digitalWrite(D2,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
digitalWrite(D1,1);
digitalWrite(D2,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
digitalWrite(D1,1);
digitalWrite(D2,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
digitalWrite(D1,1);
digitalWrite(D2,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
digitalWrite(D1,1);
digitalWrite(D2,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
digitalWrite(D1,1);
digitalWrite(D2,1);
digitalWrite(D3,1);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
digitalWrite(D1,0);
digitalWrite(D2,0);
digitalWrite(D3,0);
delay(300);
}