Arduino | 14core.com

Starter #10 Driving 7 Segment Digital Display with Arduino with Source Code

Here the steps how to wire and driving the 7 segment digital display using Arduino. Electronic Parts Required ARDUINO UNO/MEGA/PRO 4x Seven Segment Digital Display 8x 220 k Resistor

/*
    .  .          ........ .... ..   ......      ........                       
MMMM   MMMMM    MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM                       
 MMM.MMMMMMM   MMM      MMM     .MM.MMM     MMM .........      .... ... .  . .  
MMM MMMMMMM . .MM.      MM.     MMM MM.  . MMM MMMMMMMMM       MMMM MMMMM.MM MM
MMMMMMMMMMMM. .MMM      MMM.  .MMM.MMMMMMMMM  ........    MMM MM  . M .MMMMMMMM.
MMM    .MMM     MMMMMMMM.MMMMMMM.  MM    .MMM. MMMMMMMM.  MMM .MMMM MMMM MMMMMM.
www.14core.com                                             .   ...  . .  ......
*/

int a = 1;
int b = 2;
int c = 3;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
int p = 8;

int d4 = 9;
int d3 = 10;
int d2 = 11;
int d1 = 12;

long n = 0;
int x = 100;
int del = 55;
 
void setup()
{
  pinMode(d1, OUTPUT);
  pinMode(d2, OUTPUT);
  pinMode(d3, OUTPUT);
  pinMode(d4, OUTPUT);
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(p, OUTPUT);
  pinMode(13,INPUT);
}
 
void loop()
{
  clearLEDs();
  pickDigit(1);
  pickNumber((n/x/1000)%10);
  delayMicroseconds(del);
 
  clearLEDs();
  pickDigit(2);
  pickNumber((n/x/100)%10);
  delayMicroseconds(del);
   
  clearLEDs();
  pickDigit(3);
  dispDec(3);
  pickNumber((n/x/10)%10);
  delayMicroseconds(del);
 
  clearLEDs();
  pickDigit(4);
  pickNumber(n/x%10);
  delayMicroseconds(del);
 
  n++;
/*
When you need to put the numbers to zero,
you may use this function

ClearDigital();

*/
 
 //ClearDigital();
 
}
 
void pickDigit(int x)
{
  digitalWrite(d1, HIGH);
  digitalWrite(d2, HIGH);
  digitalWrite(d3, HIGH);
  digitalWrite(d4, HIGH);
 
  switch(x)
  {
  case 1:
    digitalWrite(d1, LOW);
    break;
  case 2:
    digitalWrite(d2, LOW);
    break;
  case 3:
    digitalWrite(d3, LOW);
    break;
  default:
    digitalWrite(d4, LOW);
    break;
  }
}
 
void pickNumber(int x)
{
  switch(x)
  {
  default:
    zero();
    break;
  case 1:
    one();
    break;
  case 2:
    two();
    break;
  case 3:
    three();
    break;
  case 4:
    four();
    break;
  case 5:
    five();
    break;
  case 6:
    six();
    break;
  case 7:
    seven();
    break;
  case 8:
    eight();
    break;
  case 9:
    nine();
    break;
  }
}
 
void dispDec(int x)
{
  digitalWrite(p, LOW);
}
 
void clearLEDs()
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
  digitalWrite(p, LOW);
}
 
void zero()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}
 
void one()
{
  digitalWrite(a, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}
 
void two()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, HIGH);
}
 
void three()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, HIGH);
}
 
void four()
{
  digitalWrite(a, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}
 
void five()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, LOW);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, LOW);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}
 
void six()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, LOW);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}
 
void seven()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}
 
void eight()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}
 
void nine()
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, LOW);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}
/*
you can add a button, please refer to 14Core Starter #3 Button Control.
keep the Pin13 all high.
when push the button, it become LOW.
n=0;
*/
void ClearDigital()
{
if(digitalRead(13)== LOW)
{
n=0;
}  
}

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. . ........ .... .. ...... ........

MMMM MMMMM MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM

MMM.MMMMMMM MMM MMM .MM.MMM MMM ......... .... ... . . .

MMM MMMMMMM . .MM. MM. MMM MM. . MMM MMMMMMMMM MMMM MMMMM.MM MM

MMMMMMMMMMMM. .MMM MMM. .MMM.MMMMMMMMM ........ MMM MM . M .MMMMMMMM.

MMM .MMM MMMMMMMM.MMMMMMM. MM .MMM. MMMMMMMM. MMM .MMMM MMMM MMMMMM.

www.14core.com . ... . . ......

int a = 1;

int b = 2;

int c = 3;

int d = 4;

int e = 5;

int f = 6;

int g = 7;

int p = 8;

int d4 = 9;

int d3 = 10;

int d2 = 11;

int d1 = 12;

long n = 0;

int x = 100;

int del = 55;

void setup()

{

pinMode(d1, OUTPUT);

pinMode(d2, OUTPUT);

pinMode(d3, OUTPUT);

pinMode(d4, OUTPUT);

pinMode(a, OUTPUT);

pinMode(b, OUTPUT);

pinMode(c, OUTPUT);

pinMode(d, OUTPUT);

pinMode(e, OUTPUT);

pinMode(f, OUTPUT);

pinMode(g, OUTPUT);

pinMode(p, OUTPUT);

pinMode(13,INPUT);

}

void loop()

{

clearLEDs();

pickDigit(1);

pickNumber((n/x/1000)%10);

delayMicroseconds(del);

clearLEDs();

pickDigit(2);

pickNumber((n/x/100)%10);

delayMicroseconds(del);

clearLEDs();

pickDigit(3);

dispDec(3);

pickNumber((n/x/10)%10);

delayMicroseconds(del);

clearLEDs();

pickDigit(4);

pickNumber(n/x%10);

delayMicroseconds(del);

n++;

When you need to put the numbers to zero,

you may use this function

ClearDigital();

//ClearDigital();

}

void pickDigit(int x)

{

digitalWrite(d1, HIGH);

digitalWrite(d2, HIGH);

digitalWrite(d3, HIGH);

digitalWrite(d4, HIGH);

switch(x)

{

case 1:

digitalWrite(d1, LOW);

break;

case 2:

digitalWrite(d2, LOW);

break;

case 3:

digitalWrite(d3, LOW);

break;

default:

digitalWrite(d4, LOW);

break;

}

void pickNumber(int x)

{

switch(x)

{

default:

zero();

break;

case 1:

one();

break;

case 2:

two();

break;

case 3:

three();

break;

case 4:

four();

break;

case 5:

five();

break;

case 6:

six();

break;

case 7:

seven();

break;

case 8:

eight();

break;

case 9:

nine();

break;

}

void dispDec(int x)

{

digitalWrite(p, LOW);

}

void clearLEDs()

{

digitalWrite(a, LOW);

digitalWrite(b, LOW);

digitalWrite(c, LOW);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, LOW);

digitalWrite(p, LOW);

}

void zero()

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, HIGH);

digitalWrite(g, LOW);

}

void one()

{

digitalWrite(a, LOW);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, LOW);

}

void two()

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, LOW);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, LOW);

digitalWrite(g, HIGH);

}

void three()

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, HIGH);

}

void four()

{

digitalWrite(a, LOW);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void five()

{

digitalWrite(a, HIGH);

digitalWrite(b, LOW);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, LOW);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void six()

{

digitalWrite(a, HIGH);

digitalWrite(b, LOW);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void seven()

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, LOW);

digitalWrite(e, LOW);

digitalWrite(f, LOW);

digitalWrite(g, LOW);

}

void eight()

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, HIGH);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

void nine()

{

digitalWrite(a, HIGH);

digitalWrite(b, HIGH);

digitalWrite(c, HIGH);

digitalWrite(d, HIGH);

digitalWrite(e, LOW);

digitalWrite(f, HIGH);

digitalWrite(g, HIGH);

}

you can add a button, please refer to 14Core Starter #3 Button Control.

keep the Pin13 all high.

when push the button, it become LOW.

n=0;

void ClearDigital()

{

if(digitalRead(13)== LOW)

{

n=0;

}

Download the source code here | 14Core Digital Display

Starter #9 Light Detection with (LDR) Light-Dependent Resistor with Arduino

Detecting a light or making a switch using Photoresistor interface with Arduino. Electronic Components Required Arduino UNO/MEGA/PRO 1x LED 1x 220k Ohm Resistor 1x 10k Resistor 1x LDR(Photo resistor)

/*
    .  .          ........ .... ..   ......      ........                       
MMMM   MMMMM    MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM                       
 MMM.MMMMMMM   MMM      MMM     .MM.MMM     MMM .........      .... ... .  . .  
MMM MMMMMMM . .MM.      MM.     MMM MM.  . MMM MMMMMMMMM       MMMM MMMMM.MM MM
MMMMMMMMMMMM. .MMM      MMM.  .MMM.MMMMMMMMM  ........    MMM MM  . M .MMMMMMMM.
MMM    .MMM     MMMMMMMM.MMMMMMM.  MM    .MMM. MMMMMMMM.  MMM .MMMM MMMM MMMMMM.
                                                           .   ...  . .  ......
*/

int photocellPin = 2;//define the LDR to D2;
int ledPin =12;
int val =0; //val to store the data;
void setup(){
pinMode(ledPin,OUTPUT);//set the ledPin to output;
Serial.begin(9600);
}
void loop(){
val = analogRead(photocellPin);
Serial.println("current light is");
Serial.println(val);
if (val<350){
//512 =2.5V, you can modify this to adjust the sensitivity;
digitalWrite(ledPin,HIGH);
}
else{
digitalWrite(ledPin,LOW);
}
delay(1000);
}

. . ........ .... .. ...... ........

MMMM MMMMM MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM

MMM.MMMMMMM MMM MMM .MM.MMM MMM ......... .... ... . . .

MMM MMMMMMM . .MM. MM. MMM MM. . MMM MMMMMMMMM MMMM MMMMM.MM MM

MMMMMMMMMMMM. .MMM MMM. .MMM.MMMMMMMMM ........ MMM MM . M .MMMMMMMM.

MMM .MMM MMMMMMMM.MMMMMMM. MM .MMM. MMMMMMMM. MMM .MMMM MMMM MMMMMM.

. ... . . ......

int photocellPin = 2;//define the LDR to D2;

int ledPin =12;

int val =0; //val to store the data;

void setup(){

pinMode(ledPin,OUTPUT);//set the ledPin to output;

Serial.begin(9600);

}

void loop(){

val = analogRead(photocellPin);

Serial.println("current light is");

Serial.println(val);

if (val<350){

//512 =2.5V, you can modify this to adjust the sensitivity;

digitalWrite(ledPin,HIGH);

}

else{

digitalWrite(ledPin,LOW);

}

delay(1000);

}

Download the source code here | 14Core Light Detection

Starter #8 Using Analog in Arduino with Potentiometer

Working on Potentiometer in Arduino inalog. Electronic Part Requirements. Arduino UNO/MEGA/PRO/ 1x 10k Potentiometer

/*
    .  .          ........ .... ..   ......      ........                       
MMMM   MMMMM    MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM                       
 MMM.MMMMMMM   MMM      MMM     .MM.MMM     MMM .........      .... ... .  . .  
MMM MMMMMMM . .MM.      MM.     MMM MM.  . MMM MMMMMMMMM       MMMM MMMMM.MM MM
MMMMMMMMMMMM. .MMM      MMM.  .MMM.MMMMMMMMM  ........    MMM MM  . M .MMMMMMMM.
MMM    .MMM     MMMMMMMM.MMMMMMM.  MM    .MMM. MMMMMMMM.  MMM .MMMM MMMM MMMMMM. 14core.com
                                                           .   ...  . .  ......
*/              

int potpin = 0 ;
int ledpin = 13 ;
int val = 0 ;

void setup()
{
    pinMode(ledpin,OUTPUT);
    Serial.begin(9600);
}
void loop()
{
    digitalWrite(ledpin,HIGH);
    delay(50);
    digitalWrite(ledpin,LOW);
    delay(50);
    val =  analogRead(potpin);
    Serial.println(val) ;
}

. . ........ .... .. ...... ........

MMMM MMMMM MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM

MMM.MMMMMMM MMM MMM .MM.MMM MMM ......... .... ... . . .

MMM MMMMMMM . .MM. MM. MMM MM. . MMM MMMMMMMMM MMMM MMMMM.MM MM

MMMMMMMMMMMM. .MMM MMM. .MMM.MMMMMMMMM ........ MMM MM . M .MMMMMMMM.

MMM .MMM MMMMMMMM.MMMMMMM. MM .MMM. MMMMMMMM. MMM .MMMM MMMM MMMMMM. 14core.com

. ... . . ......

int potpin = 0 ;

int ledpin = 13 ;

int val = 0 ;

void setup()

{

pinMode(ledpin,OUTPUT);

Serial.begin(9600);

}

void loop()

{

digitalWrite(ledpin,HIGH);

delay(50);

digitalWrite(ledpin,LOW);

delay(50);

val = analogRead(potpin);

Serial.println(val) ;

}

Download the source code here | 14coreanalog

Starter #7 How to use Tilt Switch in Arduino with Sample Source Code

How to use the TILT switch using Arduino.

int led=7;
int tilt =2;
void setup()
{
  pinMode(led,OUTPUT);
  pinMode(tilt,INPUT);
}
void loop()
{
  if(digitalRead(tilt)==HIGH)
  {
   digitalWrite(led,LOW);//turn off the LED
  }
  else
  {
    digitalWrite(led,HIGH);//turn on the LED
  }
}

int led=7;

int tilt =2;

void setup()

{

pinMode(led,OUTPUT);

pinMode(tilt,INPUT);

}

void loop()

{

if(digitalRead(tilt)==HIGH)

{

digitalWrite(led,LOW);//turn off the LED

}

else

{

digitalWrite(led,HIGH);//turn on the LED

}

Download the source code here | 14Core_Tilt_Switch

Starter #6 Using Buzzer in Arduino Sample Code

Sample Source code how to use a buzzer connected to Arduino, Electronic Parts you need 1x Arduino Uno / Mega / Pro 1x Buzzer or Beeper

int buzzer=7;
void setup()
{
  pinMode(buzzer,OUTPUT);
}
void loop()
{
  unsigned char i,j;
  while(1)
  {
    for(i=0;i<80;i++)
    {
      digitalWrite(buzzer,HIGH);
      delay(1);
      digitalWrite(buzzer,LOW);
      delay(1);
    }
    for(i=0;i<100;i++)
    {
      digitalWrite(buzzer,HIGH);
      delay(2);
      digitalWrite(buzzer,LOW);
      delay(2);
    }
  }
}

int buzzer=7;

void setup()

{

pinMode(buzzer,OUTPUT);

}

void loop()

{

unsigned char i,j;

while(1)

{

for(i=0;i<80;i++)

{

digitalWrite(buzzer,HIGH);

delay(1);

digitalWrite(buzzer,LOW);

delay(1);

}

for(i=0;i<100;i++)

{

digitalWrite(buzzer,HIGH);

delay(2);

digitalWrite(buzzer,LOW);

delay(2);

}

Download the core here | 14CoreBuzzer

Starter #5 Running LED With Arduino

Running LED(light emitting diode) with Arduino on loop function driving the LED. below are the wiring instructions. Electronic Parts Requirements Jumper Wires 6x LED(light emitting diode) 6x 220k ohm (Resistor)

/*                                                                                                     
          .:+osysso++:`                                                                             
       `+yhs/-`     `-+s+`        `:/+++++++++`  .:/++ooo++/-` .ooooooooooo+:    :///////////-      
     `odh/`            `:y+`     /ddhsooooooo+ /hddhsooooydddh sdddoooooosdddy` `////////////`      
    -hds`                `sy.   +ddy`         .ddd:       sddy.dddo       +ddd- .-----------`       
   `hds :sssss/   -ossssso-yy` `hdd:          oddy       `ddd/oddd:......+dddo .++++++++++++        
   +dd` :sdddh` :ydddddddo +y/ .ddd+........ `hddy:.....:yddy.hdddddddddddy+.  ````````````         
   ydy  .hddd/+hdddhydddh/.+yo  /hdddddddddd. :shddddddddhs/`+ddd:````-yddy-  :ooooooooooo+         
   odh` sdddooyyyyyhddddyy.sy+  ` `.........     ``....      ....`   ```...`    `  ``  `` `         
   -dd+`::::`      .:::-  /yy.  -oos+:-oos+--oos+:   /o `+y o/: o:+/ h:`yos   /+-`/+/+ s:y/y.       
    /dd/                `+yy:    +//+  +/:+  +/:+ -. `/ -:o.:/:`//+- +  +:- :`-+:`://: +`o`+.       
     -yds.            `/yys-     .`-.. .``` ```` .`` ` ` ``` ``-..` `                               
       :ydy/.`````.-/oyhs:      `+++oo+oo+:.+-++/-/ooo+o +:o/oo///:+/                               
         .:oyhhhhhhhso:`                                          `.                                
               ```      
*/

//connect with pin 2 to pin 7.
void style_1(void)
{
  unsigned char j;
  for(j=2;j<=7;j++)
  {
    digitalWrite(j,HIGH);
    delay(200);
  }
  for(j=7;j>=2;j--)
  {
    digitalWrite(j,LOW);
    delay(200);
  }
}

void flash(void)
{   
  unsigned char j,k;
  for(k=0;k<=1;k++)
  {
    for(j=2;j<=7;j++)
      digitalWrite(j,HIGH);
    delay(200);
    for(j=2;j<=7;j++)
      digitalWrite(j,LOW);
    delay(200);
  }
}

void style_2(void)
{
  unsigned char j,k;
  k=1;
  for(j=4;j>=2;j--)
  {   
    digitalWrite(j,HIGH);
    digitalWrite(j+k,HIGH);
    delay(400);
    k +=2;
  }
  k=5;
  for(j=2;j<=4;j++)
  {
    digitalWrite(j,LOW);
    digitalWrite(j+k,LOW);
    delay(400);
    k -=2;
  }
}

void style_3(void)
{
  unsigned char j,k;
  k=5;
  for(j=2;j<=4;j++)
  {
    digitalWrite(j,HIGH);
    digitalWrite(j+k,HIGH);
    delay(400);
    digitalWrite(j,LOW);
    digitalWrite(j+k,LOW);
    k -=2;
  }
  k=3;
  for(j=2;j>=1;j--)
  {   
    digitalWrite(j,HIGH);
    digitalWrite(j+k,HIGH);
    delay(400);
    digitalWrite(j,LOW);
    digitalWrite(j+k,LOW);
    k +=2;
  }
}
void setup()
{
  unsigned char i;
  for(i=2;i<=7;i++)
    pinMode(i,OUTPUT);
}
void loop()
{   
  style_1();
  flash();
  style_2();
  flash();
  style_3();
  flash();
}

100

101

102

103

104

105

106

107

.:+osysso++:`

`+yhs/-` `-+s+` `:/+++++++++` .:/++ooo++/-` .ooooooooooo+: :///////////-

`odh/` `:y+` /ddhsooooooo+ /hddhsooooydddh sdddoooooosdddy` `////////////`

-hds` `sy. +ddy` .ddd: sddy.dddo +ddd- .-----------`

`hds :sssss/ -ossssso-yy` `hdd: oddy `ddd/oddd:......+dddo .++++++++++++

+dd` :sdddh` :ydddddddo +y/ .ddd+........ `hddy:.....:yddy.hdddddddddddy+. ````````````

ydy .hddd/+hdddhydddh/.+yo /hdddddddddd. :shddddddddhs/`+ddd:````-yddy- :ooooooooooo+

odh` sdddooyyyyyhddddyy.sy+ ` `......... ``.... ....` ```...` ` `` `` `

-dd+`::::` .:::- /yy. -oos+:-oos+--oos+: /o `+y o/: o:+/ h:`yos /+-`/+/+ s:y/y.

/dd/ `+yy: +//+ +/:+ +/:+ -. `/ -:o.:/:`//+- + +:- :`-+:`://: +`o`+.

-yds. `/yys- .`-.. .``` ```` .`` ` ` ``` ``-..` `

:ydy/.`````.-/oyhs: `+++oo+oo+:.+-++/-/ooo+o +:o/oo///:+/

.:oyhhhhhhhso:` `.

```

//connect with pin 2 to pin 7.

void style_1(void)

{

unsigned char j;

for(j=2;j<=7;j++)

{

digitalWrite(j,HIGH);

delay(200);

}

for(j=7;j>=2;j--)

{

digitalWrite(j,LOW);

delay(200);

}

void flash(void)

{

unsigned char j,k;

for(k=0;k<=1;k++)

{

for(j=2;j<=7;j++)

digitalWrite(j,HIGH);

delay(200);

for(j=2;j<=7;j++)

digitalWrite(j,LOW);

delay(200);

}

void style_2(void)

{

unsigned char j,k;

k=1;

for(j=4;j>=2;j--)

{

digitalWrite(j,HIGH);

digitalWrite(j+k,HIGH);

delay(400);

k +=2;

}

k=5;

for(j=2;j<=4;j++)

{

digitalWrite(j,LOW);

digitalWrite(j+k,LOW);

delay(400);

k -=2;

}

void style_3(void)

{

unsigned char j,k;

k=5;

for(j=2;j<=4;j++)

{

digitalWrite(j,HIGH);

digitalWrite(j+k,HIGH);

delay(400);

digitalWrite(j,LOW);

digitalWrite(j+k,LOW);

k -=2;

}

k=3;

for(j=2;j>=1;j--)

{

digitalWrite(j,HIGH);

digitalWrite(j+k,HIGH);

delay(400);

digitalWrite(j,LOW);

digitalWrite(j+k,LOW);

k +=2;

}

void setup()

{

unsigned char i;

for(i=2;i<=7;i++)

pinMode(i,OUTPUT);

}

void loop()

{

style_1();

flash();

style_2();

flash();

style_3();

flash();

}

Download the source code here > 14Core_Runing_light

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