230V AC 4 Channel Chaser Circuit and PCB Layout

In this article I’m sharing simple 4 channel chaser circuit and its board PCB layout. This circuit is working based on Arduino Nano and you can directly connect the 230V bulb to the circuit but the Arduino needs a separate 5V dc from small SMPS board.

4 Channel Chaser Connection Diagram

4 channel chaser connection diagram

in this connection diagram a 5v supply is connected to the board for Arduino Nano working voltage. You can use a mobile charger old board for getting 5V DC supply. The 230V AC is takes and connected to the load and the neutral connected to the chaser board common neutral point.

Circuit Diagram

4 channel chaser circuit

The circuit diagram is simple and easy to understand. This circuit contains few number of electronic components and a single Arduino Nano programmed board. The power supply for the board is gets through the 5V SMPS. The MOC3021 is an optical isolator IC which isolates the small voltage from High AC voltage.

The MOC3021 IC controls the BT136 triac, so the Triac is turns ON or OFF makes the sequence of light ON and OFF. This circuit consist of 4 channel, so you can connect 4 230V AC lights to it. if you want to add more channels make changes in the Arduino programming code.

The project is shared by bijoyts electo thanks to him for such a wonderful electronic project.

Programming Code for Arduino Nano

int led1 = 5;
int led2 = 4;
int led3 = 3;
int led4 = 2;




void setup() {
  
   pinMode(led1,OUTPUT);
   pinMode(led2,OUTPUT);
   pinMode(led3,OUTPUT);
   pinMode(led4,OUTPUT);
   
}

void loop() 
{
  blink_1();
  blink_1();
 
 blink_2();
 blink_2();
  
 blink_3();
 blink_3();
  
 blink_4();
 blink_4();
 
 blink_5();
 blink_5();


 blink_6();
 blink_6();


 blink_7();
 blink_7();

blink_8();
blink_8();

 blink_18();
 
 blink_9();
 blink_9();

 blink_10();
 blink_10();

 blink_11();
 blink_11();

blink_22();
 blink_22();
 
 blink_12();
 blink_12();

 blink_13();
 blink_13();

  blink_20();
  blink_20();


 blink_14();
  blink_14();

  blink_15();
  blink_15();

  blink_16();
  blink_16();

  blink_17();
  blink_17();

  blink_18();
  blink_18();

   blink_19();
   blink_19();

   blink_20();
   blink_20();

  blink_21();
  blink_21();

  blink_22();
  blink_22();

  blink_23();
  blink_23();

  /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


 
 
}

/////////////pattern 1///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_1()
{
  int t=150;
 
  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
   digitalWrite(led4,HIGH);
  delay(t);

 

  //////////////////////////////////
  
  
  
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led4,LOW);
  delay(t);

   


  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
   digitalWrite(led4,HIGH);
  delay(t);
 
 

  //////////////////////////////////
  
  
  
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led4,LOW);
  delay(t);

 
}

/////////////pattern 2///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_2()
{
  int t=150;
 
  digitalWrite(led1,HIGH);
  delay(t);
  digitalWrite(led1,LOW);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3,HIGH);
  delay(t);
  digitalWrite(led3,LOW);
  digitalWrite(led4,HIGH);
  delay(t);
  digitalWrite(led4,LOW);

 
  digitalWrite(led1, LOW);
  digitalWrite(led2,LOW);
  digitalWrite(led3,LOW);
  digitalWrite(led4,LOW);



///////////////////////////////////////////

  digitalWrite(led1,HIGH);
  delay(t);
  digitalWrite(led1,LOW);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3,HIGH);
  delay(t);
  digitalWrite(led3,LOW);
  digitalWrite(led4,HIGH);
  delay(t);
  digitalWrite(led4,LOW);

 
  digitalWrite(led1, LOW);
  digitalWrite(led2,LOW);
  digitalWrite(led3,LOW);
  digitalWrite(led4,LOW);

 
////////////////////////////////////////

  digitalWrite(led1,HIGH);
  delay(t);
  digitalWrite(led1,LOW);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3,HIGH);
  delay(t);
  digitalWrite(led3,LOW);
  digitalWrite(led4,HIGH);
  delay(t);
  digitalWrite(led4,LOW);

 
  digitalWrite(led1, LOW);
  digitalWrite(led2,LOW);
  digitalWrite(led3,LOW);
  digitalWrite(led4,LOW);

   
}


/////////////pattern 3///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_3()
{
  int t=150;
 
  digitalWrite(led1,LOW);
  delay(t);
  digitalWrite(led1,HIGH);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led3,HIGH);
  digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led4,HIGH);

 
  digitalWrite(led1, HIGH);
  digitalWrite(led2,HIGH);
  digitalWrite(led3,HIGH);
  digitalWrite(led4,HIGH);
 

//////////////////////////////////////

  digitalWrite(led1,LOW);
  delay(t);
  digitalWrite(led1,HIGH);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led3,HIGH);
  digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led4,HIGH);

 
  digitalWrite(led1, HIGH);
  digitalWrite(led2,HIGH);
  digitalWrite(led3,HIGH);
  digitalWrite(led4,HIGH);


///////////////////////////////////////////

 digitalWrite(led1,LOW);
  delay(t);
  digitalWrite(led1,HIGH);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led3,HIGH);
  digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led4,HIGH);

 
digitalWrite(led1, HIGH);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);


}

/////////////pattern 4///////////////////////////////////////////////////////////////////////////////////////////////////KKKKKKKKKKKKKK
void blink_4()
{
  int t=150;

  digitalWrite(led1, HIGH );

  digitalWrite(led3,HIGH);
  

  
 
  digitalWrite(led2,LOW);
  
  digitalWrite(led4,LOW);
  
 
  
  delay(t);
////////////////
 digitalWrite(led1, LOW );

  digitalWrite(led3,LOW);
 
 
 
  
  digitalWrite(led2,HIGH);
  
  digitalWrite(led4,HIGH);


  
  
  delay(t);

///////////////////////////////////////////////////////////////////


  digitalWrite(led1, HIGH );

  digitalWrite(led3,HIGH);
  
 

  
 
  digitalWrite(led2,LOW);
  
  digitalWrite(led4,LOW);
  
 
  
  delay(t);
////////////////
 digitalWrite(led1, LOW );

  digitalWrite(led3,LOW);
 

 
  
  digitalWrite(led2,HIGH);
  
  digitalWrite(led4,HIGH);


  
  
  delay(t);


  
  digitalWrite(led1, HIGH );

  digitalWrite(led3,HIGH);
  


  
 
  digitalWrite(led2,LOW);
  
  digitalWrite(led4,LOW);
  

  
  delay(t);
////////////////
 digitalWrite(led1, LOW );

  digitalWrite(led3,LOW);
 

 
  
  digitalWrite(led2,HIGH);
  
  digitalWrite(led4,HIGH);


  
  
  delay(t);

   digitalWrite(led1, HIGH );

  digitalWrite(led3,HIGH);
  
 

  
 
  digitalWrite(led2,LOW);
  
  digitalWrite(led4,LOW);
  
 
  

  
  delay(t);
////////////////
 digitalWrite(led1, LOW );

  digitalWrite(led3,LOW);
 

 
  
  digitalWrite(led2,HIGH);
  
  digitalWrite(led4,HIGH);


  
  
  delay(t);

digitalWrite(led1, HIGH);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);


  delay(t);


}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 5///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_5()
{
  int t=150;

  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
   digitalWrite(led4,HIGH);
  delay(t);

  
  
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led4,LOW);
  delay(t);

  


 
 
  digitalWrite(led4,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led1,HIGH);
  delay(t);



  digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led1,LOW);
  delay(t);



digitalWrite(led1, LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);


  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
   digitalWrite(led4,HIGH);
  delay(t);
 
  
  
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led4,LOW);
  delay(t);
 
  digitalWrite(led4,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led1,HIGH);
  delay(t);



  digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
  digitalWrite(led1,LOW);
  delay(t);




digitalWrite(led1, LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);


}

/////////////pattern 6///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_6()
{
  int t=150;

  digitalWrite(led1, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3, HIGH );
  delay(t);
 
  

  digitalWrite(led1, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3, LOW );
  delay(t);


  ////////////////


  digitalWrite(led1, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3, HIGH );
  delay(t);

  

  digitalWrite(led1, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3, LOW );
  delay(t);


  //////////////

  digitalWrite(led1, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3, HIGH );
  delay(t);

  

  digitalWrite(led1, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3, LOW );
  delay(t);

}


/////////////pattern 7///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_7()
{
  int t=150;

  digitalWrite(led1, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3, LOW );
  delay(t);
 
  

  digitalWrite(led1, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3, HIGH );
  delay(t);




  digitalWrite(led1, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2,LOW);
  digitalWrite(led3, LOW );
  delay(t);

  

  digitalWrite(led1, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  digitalWrite(led3, HIGH );
  delay(t);
 
  
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 8///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_8()
{
  int t=200;


digitalWrite(led1, HIGH);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);

delay(t);

digitalWrite(led1, LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);


delay(t);


digitalWrite(led1, HIGH);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);

delay(t);

digitalWrite(led1, LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);

delay(t);



digitalWrite(led1, HIGH);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);

delay(t);

digitalWrite(led1, LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);


delay(t);



digitalWrite(led1, HIGH);
digitalWrite(led2,HIGH);
digitalWrite(led3,HIGH);
digitalWrite(led4,HIGH);

delay(t);

digitalWrite(led1, LOW);
digitalWrite(led2,LOW);
digitalWrite(led3,LOW);
digitalWrite(led4,LOW);


delay(t);


}


////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 9///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_9()
{
  int t=150;

  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  
  digitalWrite(led3,HIGH);
  digitalWrite(led1, LOW );
  delay(t);

  digitalWrite(led4,HIGH);
  digitalWrite(led2, LOW );
  delay(t);

 

  digitalWrite(led2,HIGH);
  digitalWrite(led4, LOW );
  delay(t);

  digitalWrite(led1,HIGH);
  digitalWrite(led3, LOW );
  delay(t);

   

  digitalWrite(led2, LOW );
  delay(t);

  digitalWrite(led1, LOW );
  delay(t);



////////////////////////////



  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  
  digitalWrite(led3,HIGH);
  digitalWrite(led1, LOW );
  delay(t);

  digitalWrite(led4,HIGH);
  digitalWrite(led2, LOW );
  delay(t);



   digitalWrite(led2,HIGH);
  digitalWrite(led4, LOW );
  delay(t);

   digitalWrite(led1,HIGH);
  digitalWrite(led3, LOW );
  delay(t);

   

digitalWrite(led2, LOW );
  delay(t);

digitalWrite(led1, LOW );
  delay(t);


//////////////////////////////////////


  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  
  digitalWrite(led3,HIGH);
  digitalWrite(led1, LOW );
  delay(t);

  digitalWrite(led4,HIGH);
  digitalWrite(led2, LOW );
  delay(t);



   digitalWrite(led2,HIGH);
  digitalWrite(led4, LOW );
  delay(t);

   digitalWrite(led1,HIGH);
  digitalWrite(led3, LOW );
  delay(t);

   

digitalWrite(led2, LOW );
  delay(t);

digitalWrite(led1, LOW );
  delay(t);

  

}



////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 10///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_10()
{
  int t=150;

  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  delay(t);
   digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
   digitalWrite(led1, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
    digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led3, HIGH );
  delay(t);
   digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led4, LOW );
  delay(t);
   digitalWrite(led4, HIGH );
  delay(t);
    digitalWrite(led4, LOW );
  delay(t);

    digitalWrite(led3, HIGH );
  delay(t);
   digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
   digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
    digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  delay(t);
   digitalWrite(led1, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
    digitalWrite(led2, LOW );
  delay(t);
    digitalWrite(led3, HIGH );
  delay(t);
   digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
   digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led4, LOW );
  delay(t);
   digitalWrite(led4, HIGH );
  delay(t);
    digitalWrite(led4, LOW );
  delay(t);
   digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led3, HIGH );
  delay(t);
   digitalWrite(led3, LOW );
  delay(t);

   digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led2, HIGH );
  delay(t);
    digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  delay(t);
   digitalWrite(led1, LOW );
  delay(t);

}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 11///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_11()
{
  int t=150;

  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
   digitalWrite(led4,HIGH);
  delay(t);

 

  //////////////////////////////////
  

   digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
    digitalWrite(led1, LOW );
  delay(t);




  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2,HIGH);
  delay(t);
  digitalWrite(led3,HIGH);
  delay(t);
   digitalWrite(led4,HIGH);
  delay(t);
 
 

  //////////////////////////////////
  
 
   digitalWrite(led4,LOW);
  delay(t);
  digitalWrite(led3,LOW);
  delay(t);
  digitalWrite(led2,LOW);
  delay(t);
    digitalWrite(led1, LOW );
  delay(t);

}
  
  
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 12///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_12()
{
  int t=180;

  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
   digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
}  
   

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 13///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_13()
{
  int t=150;
  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  delay(t);

  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  delay(t);
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 14///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_14()
{
  int t=150;

  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
   digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led4, HIGH );
  delay(t);
    digitalWrite(led4, LOW );
  delay(t);
    digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
   digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
   digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
     digitalWrite(led2, LOW );
  delay(t);
    digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
    digitalWrite(led1, LOW );
  delay(t);
    digitalWrite(led1, HIGH );
  delay(t);
   delay(t);
   
  
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
 delay(t);
 delay(t);

  
}


  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 15///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_15()
{
  int t=200;

  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
  
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
 
}

  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 16///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_16()
{
  int t=150;
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  delay(t);
   digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  delay(t);
  
  
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  delay(t);
   digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  delay(t);
}

 
 
   ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 17///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_17()
{
  int t=150;
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led2, LOW );
   delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led1, LOW );

  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led2, LOW );
   delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led1, LOW );
  
}
     
   ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 18///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_18()
{
  int t=150;
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
 
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
 digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);

 
  digitalWrite(led4, LOW );
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);

  digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
 digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);

  //////////////////////////////////////////////////////////////////

   digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
 

  digitalWrite(led4, LOW );
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  
   digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);

  digitalWrite(led4, LOW );
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);

  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);

  digitalWrite(led4, LOW );
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);

    digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);

  digitalWrite(led4, LOW );
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  
}

    ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 19///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_19()
{
  int t=150;
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
 
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
 digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );
  digitalWrite(led1, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
   delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
  delay(t);
  delay(t);
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  delay(t);

   digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);

  digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
 digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led1, LOW );
  delay(t);
  

  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led2, HIGH );
   delay(t);
  digitalWrite(led1, HIGH );
  delay(t);
  delay(t);
  delay(t);
  delay(t);
  delay(t);
  delay(t);
  delay(t);
  
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  delay(t);
}

     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 20///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_20()
{
  int t=150;
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
 
  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led4, LOW );

  digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
 // digitalWrite(led4, LOW );
  
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  delay(t);

}

     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 21///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_21()
{
  int t=150;
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );
    digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);

  digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  delay(t);
}

     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 22///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_22()
{
  int t=150;
  digitalWrite(led1, LOW );
  digitalWrite(led2, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, LOW );

    digitalWrite(led1, HIGH );
   delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led2, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  digitalWrite(led4, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  //digitalWrite(led4, LOW );
  //delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  delay(t);

 digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led3, HIGH );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, LOW );
  delay(t);
  // digitalWrite(led1, LOW );
   //delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  delay(t);

}


     ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////pattern 23///////////////////////////////////////////////////////////////////////////////////////////////////
void blink_23()
{
  int t=150;
 

  digitalWrite(led1, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led3, HIGH );
  delay(t);
  digitalWrite(led1, LOW );
  digitalWrite(led3, LOW );
  delay(t);
  digitalWrite(led1, HIGH );
  digitalWrite(led3, HIGH );
  delay(t);

  digitalWrite(led1, HIGH );
  digitalWrite(led3, HIGH );
  digitalWrite(led2, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);

  digitalWrite(led2, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);
  digitalWrite(led2, LOW );
  digitalWrite(led4, LOW );
  delay(t);
  digitalWrite(led2, HIGH );
  digitalWrite(led4, HIGH );
  delay(t);

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Akhil Satheesh

Akhil Satheesh

Akhil Satheesh is an electronics expert and the Founder and CEO of Soldering Mind. Specializes in designing innovative electronic circuits and custom, high-performance PCB layouts. Every project he shares on solderingmind.com is rigorously bench-tested to ensure accuracy for makers and hobbyists alike.

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