Led chaser circuit using Arduino Nano with codes. Arduino code for led flashing and chaser effect. Code for different led pattern on Arduino

Electronics Curiosities May 08, 2021




Led chaser circuit using Arduino Nano with codes

Requirements
1) Arduino Nano
2) Leds
3)Breadboard
4)Jumper wire
5)Micro USB Cable








The circuit is simple to design. Set the Arduino Nano on breadboard. Connect all the LEDs to digital pins of Arduino Nano. 
After connecting LEDs give ground  supply to LEDs from Arduino Nano any GND pin. 
All LEDs share the common ground. 
I have not used resistor here to connect between digital pins and positive terminal of led for protection of led. If you want you can add 450ohm resistor to reduce current flow.
You can also use same code for Arduino Uno to try chaser effect on LEDs.


Circuit Diagram



Steps before uploading code on Arduino board


1)Select Board as Arduino Nano in Tools





2)Select processor as Atmega328p (old bootloader ) for arduinno nano board





3)Set Port based on your system provide to Arduino nano in my case port Com5





After all steps verify and upload code on Arduino nano board.


7 led chaser effects using Arduino Nano with code / Different led patterns designs with code

Code
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#define t   30
#define t1  20
#define t2  100
#define t3  50

void setup() {
  // set up pins 2 to 13 as outputs
  for (int i = 2; i <= 13; i++) {
    pinMode(i, OUTPUT);
  }
}



void loop(){

effect_1();
effect_1();

 effect_2();
 effect_2();

 effect_3();
 effect_3();

 effect_4();
 effect_4();

 effect_5();
 effect_5();

 effect_6();
 effect_6();

 effect_7();
 effect_7();
  }
//left to right and right to left

//Effect 1
void effect_1()
{
for(int i=2; i<14; i++){
digitalWrite(i, HIGH);
delay(t1);
digitalWrite(i+1, HIGH);
delay(t1);
digitalWrite(i+2, HIGH);
delay(t1);
digitalWrite(i, LOW);
delay(t1);
digitalWrite(i+1, LOW);
delay(t1);
}
for(int i=13; i>1; i--){
digitalWrite(i, HIGH);
delay(t1);
digitalWrite(i-1, HIGH);
delay(t1);
digitalWrite(i-2, HIGH);
delay(t1);
digitalWrite(i, LOW);
delay(t1);
digitalWrite(i-1, LOW);
delay(t1);
}
}
//Effect 2
void effect_2()
{
int count = 13; // keeps track of second LED movement

  // move first LED from left to right and second from right to left
  for (int i = 2; i < 13; i++) {
    clear();
    digitalWrite(i, HIGH);      // chaser 1
    digitalWrite(count, HIGH); // chaser 2
    count--;
    // stop LEDs from appearing to stand still in the middle
    if (count != 7) {
      delay(t2);
    }
  }

  // move first LED from right to left and second LED from left to right
  for (int i = 13; i > 2; i--) {
    clear();
    digitalWrite(i, HIGH);      // chaser 1
    digitalWrite(count, HIGH); // chaser 2
    count++;
    // stop LEDs from appearing to stand still in the middle
    if (count != 8) {
      delay(t2);
    }
  }
}

//Effect 3

void effect_3()
{
for(int i=2; i<14; i++){
  digitalWrite(i, HIGH);
  delay(t3);
}
for(int i=2; i<14; i++){
  digitalWrite(i, LOW);
  delay(t3);
}


for(int i = 14; i>=2; i--){
  digitalWrite(i, HIGH);
  delay(t3);
}
for(int i = 14; i>=2; i--){
  digitalWrite(i, LOW);
  delay(t3);
}
}
  //Effect 4
void effect_4()
{
for(int j = 2; j <= 13; j++){
  digitalWrite(j, HIGH);
  delay(t2);
  j=j+1;
  }
for(int j = 2; j <= 13; j++){
  digitalWrite(j, LOW);
  delay(t2);
  }

  for(int k = 15; k > 2; k--){
  digitalWrite(k, HIGH);
  delay(t2);
  k=k-1;
  }
for(int k = 15; k > 2; k--){
  digitalWrite(k, LOW);
  delay(t2);
  }
}


//Effect 5
  void effect_5()
{
 for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin, HIGH);
  delay(t1);
  digitalWrite(pin+1, LOW);
  delay(t1);
  }
  for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+1, HIGH);
  delay(t1);
  digitalWrite(pin+2, LOW);
  delay(t1);
  }
  for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+2, HIGH);
  delay(t1);
  digitalWrite(pin+3, LOW);
  delay(t1);
  }
  for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+3, HIGH);
  delay(t1);
  digitalWrite(pin+4, LOW);
  delay(t1);
  }
    for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+4, HIGH);
  delay(t1);
  digitalWrite(pin+5, LOW);
  delay(t1);
  }
  for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+5, HIGH);
  delay(t1);
  digitalWrite(pin+6, LOW);
  delay(t1);
  }
  for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+6, HIGH);
  delay(t1);
  digitalWrite(pin+7, LOW);
  delay(t1);
  }
   for(int pin = 13; pin >= 2; pin--)
  {
  digitalWrite(pin+7, HIGH);
  delay(t1);
  digitalWrite(pin+8, LOW);
  delay(t1);
  }
  for(int pin = 9; pin >= 2; pin--)
  {
  digitalWrite(pin+8, HIGH);
  delay(t1);
  digitalWrite(pin+9, LOW);
  delay(t1);
  }
    for(int pin = 9; pin >= 2; pin--)
  {
  digitalWrite(pin+9, HIGH);
  delay(t1);
  digitalWrite(pin+10, LOW);
  delay(t1);
  }
  for(int pin = 9; pin >= 2; pin--)
  {
  digitalWrite(pin+10, HIGH);
  delay(t1);
  digitalWrite(pin+11, LOW);
  delay(t1);
  }
  for(int pin = 14; pin >= 2; pin--)
  {
  digitalWrite(pin+11, HIGH);
  delay(t1);
  }
  for(int pin = 13; pin >= 2; pin--)
  {
    digitalWrite(pin, LOW);
  delay(t1);
    }
  }
 
 //Effect 6
void effect_6()
{
for(int j=2; j<14; j++){
  digitalWrite(j, LOW);
  delay(t);
  digitalWrite(j, HIGH);
  delay(t);
  digitalWrite(j-2, LOW);
  delay(t);
  digitalWrite(j, HIGH);
}
for(int k = 15; k>2; k--){
  digitalWrite(k, LOW);
  delay(t);
  digitalWrite(k, HIGH);
  delay(t);
  digitalWrite(k+2, LOW);
  delay(t);
  digitalWrite(k, HIGH);
}
for(int k = 2; k<14; k++){
  digitalWrite(k, LOW);
  delay(t);
  digitalWrite(k, HIGH);
  delay(t);
  digitalWrite(k-2, LOW);
  delay(t);
  digitalWrite(k, HIGH);
}
for(int k = 15; k>2; k--){
  digitalWrite(k, LOW);
  delay(t);
  digitalWrite(k, HIGH);
  delay(t);
  digitalWrite(k+4, LOW);
  delay(t);
  digitalWrite(k, HIGH);
}
for(int k = 2; k<14; k++){
  digitalWrite(k, LOW);
  delay(t);
  digitalWrite(k, HIGH);
  delay(t);
  digitalWrite(k-4, LOW);
  delay(t);
  digitalWrite(k, HIGH);
} 
}



//Effect 7
void effect_7()
{
for(int j=2; j<14; j++){
  digitalWrite(j, HIGH);
  delay(t);
  digitalWrite(j+2, LOW);
  delay(t);
}
for(int k = 15; k>2; k--){
  digitalWrite(k, HIGH);
  delay(t);
  digitalWrite(k+2, LOW);
  delay(t);
}
}

// function to switch all LEDs off
void clear(void)
{
  for (int i = 2; i <= 13; i++) {
    digitalWrite(i, LOW);
  }
}

Watch YouTube Video





Code for chaser Effect 1


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int counter;

void setup() 
{
  counter = 14;
  for(int i = 0; i<counter; i++ )
    pinMode(i, OUTPUT);
}

void flash(int led, int duration)
{
  digitalWrite(led, HIGH);
  delay(duration);
  digitalWrite(led, LOW);
  delay(duration);  
}

void loop() 
{
for (int i = 0; i < counter; i++)
  flash(i, 20);     //led duration 20 milliseconds you can change based on your requirements
}

Watch YouTube Video




Code for chaser Effect 2

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int counter;

void setup() 
{
  counter = 14;
  for(int i = 0; i<counter; i++ )
    pinMode(i, OUTPUT);
}

void flash(int led, int duration)
{
  digitalWrite(led, HIGH);
  delay(duration);
  digitalWrite(led, LOW);
  delay(duration);  
}

void loop() 
{
for (int i = 0; i < counter; i++)
{
  flash(i, 40);
  if( i < counter)
    flash(i-1, 20); //led duration 20 milliseconds you can change based on your requirements
}
}

Code for Chaser Effect  3

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int counter;

void setup() 
{
  counter = 14;
  for(int i = 0; i<counter; i++ )
    pinMode(i, OUTPUT);
}

void flash(int led, int duration)
{
  digitalWrite(led, HIGH);
  delay(duration);
  digitalWrite(led, LOW);
  delay(duration);  
}

void loop() 
{
for (int i = 0; i < counter; i++)
{
  flash(i, 40);
  if( i < counter)
    flash(i-1, 20);
  flash(i-2, 10); 
}
}



Code for Chaser Effect 4

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int counter, led;

void setup() 
{
  counter = 14;
  for(int i = 0; i<counter; i++ )
    pinMode(i, OUTPUT);
}

void flash(int led, int duration)
{
  digitalWrite(led, HIGH);
  delay(duration);
  digitalWrite(led, LOW);
  delay(duration);  
}

void loop() 
{
led = 0;
for ( int i = 0 ; i < 27; i++)
{
  flash(led, 20);
  if ( i < counter-1 )
  led++;
  else
  led--;
}
}


Code for Chaser Effect 5

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int counter, led;

void setup() 
{
  counter = 14;
  for(int i = 0; i<counter; i++ )
    pinMode(i, OUTPUT);
}

void flash(int led, int duration)
{
  digitalWrite(led, HIGH);
  delay(duration);
  digitalWrite(led, LOW);
  delay(duration);  
}

void loop() 
{
  for ( int i = 0 ; i<counter; i++ )
  {
    flash(i, 20);
    flash(13-i, 20);
  }
}




If you have any doubt on code or any circuit connections just message me on my social media accounts.


Thank You!
Have Good Day Happy Learning❤




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