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Ledpatern 01

The document is an Arduino sketch that controls 18 LEDs with various patterns. It includes functions for different LED behaviors such as running, flashing, fading, and alternating. The main loop randomly selects one of these patterns to execute continuously.

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Laca Moln
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17 views10 pages

Ledpatern 01

The document is an Arduino sketch that controls 18 LEDs with various patterns. It includes functions for different LED behaviors such as running, flashing, fading, and alternating. The main loop randomly selects one of these patterns to execute continuously.

Uploaded by

Laca Moln
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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/* Arduino LED Patterns/Show Light with 18 LED */

//Setting Up the Pins for LEDs

void setup()

for (int pin = 1; pin <= 7; pin++)

pinMode(pin,OUTPUT);

//Main Loop - Switches different LED Patterns

void loop()

{
int pickme = random(1,20); // picks a random pattern of LED patterns

switch(pickme)

case 1:

onrun(random(20,50));

break;

case 2:

alternate(random(80,100));

break;

case 3:

offrun(random(20,50));

break;

case 4:

stack(random(30,50));

break;
case 5:

chaser(random(80,100));

break;

case 6:

fadealter(random(80,100));

break;

void clearall()

for (int pin = 1; pin <= 7; pin++)

digitalWrite(pin,LOW);

void fillall()

for (int pin = 1; pin <= 7; pin++)

digitalWrite(pin, HIGH);

//One ON LED Run and all other OFF

void onrun(int delaytime)

{
for(int pin = 1; pin <= 7; pin++)

clearall();

digitalWrite(pin, HIGH);

delay(delaytime);

for(int pin = 7; pin >= 1; pin--)

clearall();

digitalWrite(pin, HIGH);

delay(delaytime);

//One OFF LED Run and all other OFF

void offrun(int delaytime)

for(int pin = 1; pin <= 7; pin++)

fillall();

digitalWrite(pin, LOW);

delay(delaytime);

for(int pin = 7; pin >= 1; pin--)

fillall();

digitalWrite(pin, LOW);
delay(delaytime);

//Flashing all LEDs ON and OFF

void flash(int delaytime)

for(int i = 1; i <=7; i++)

clearall();

delay(delaytime);

fillall();

delay(delaytime);

//Flashing LED in Fade manner

void fadeflash(int delaytime)

clearall();

int newdelay = delaytime / 5;

for(int fade = 0; fade <= 255; fade += 5)

for(int pin = 1; pin <= 7; pin++)

analogWrite(pin, fade);

}
delay(newdelay);

for(int fade = 255; fade >= 0; fade -= 5)

for(int pin = 1; pin <= 7; pin++)

analogWrite(pin, fade);

delay(newdelay);

//Alternatively Fade & Brightens

void fadealter(int delaytime)

clearall();

int newdelay = delaytime / 5;

for(int fade = 0; fade <= 255; fade += 5)

for(int i = 1; i <= 7; i+=2)

analogWrite(i, fade);

for (int j = 1; j <= 7; j += 2)

analogWrite(j, 255-fade);
}

delay(newdelay);

for(int fade = 255; fade >= 0; fade -= 5)

for(int i = 1; i <= 7; i+=2)

analogWrite(i, fade);

for (int j = 3; j <= 19; j += 2)

analogWrite(j, 255-fade);

delay(newdelay);

//Alternate Flash - Similar to Flash but alternate LEDs

void alternate(int delaytime)

for (int n = 1; n <= 5; n++)

clearall();

for (int i = 1; i <= 7; i += 2)

{
digitalWrite(i, HIGH);

delay(delaytime);

clearall();

for (int j = 3; j <= 7; j += 2)

digitalWrite(j, HIGH);

delay(delaytime);

//Putting all LEDs one by one in a stack

void stack(int delaytime)

int stack = 0;

while(stack < 18)

for(int pos = 2; pos <= (19 - stack); pos++)

clearall();

digitalWrite(pos, HIGH);

drawstack(stack);

delay(delaytime);

stack++;

}
}

//Subfunction of the stack function

void drawstack(int stack)

for(int n = 19; n > (19 - stack); n--)

if(n >= 2)

digitalWrite(n, HIGH);

//One LED chases another LED front and back

void chaser(int delaytime)

int div = 40;

int flashtime = delaytime / div;

int A = random(2,7);

int B = random(7,12);

int Av = 1;

int Bv = 1;

if(random(0,2))

Av *= -1;

if(random(0,2))
{

Bv *= -1;

for(int time = 1; time < 100; time++)

if(abs(A-B) == 1 && (Av*Bv) == -1)

for(int f = 1; f < round(div/4); f++)

clearall();

delay(flashtime);

digitalWrite(A, HIGH);

digitalWrite(B, HIGH);

delay(flashtime);

Av *= -1;

Bv *= -1;

A += Av;

B += Bv;

else

clearall();

digitalWrite(A, HIGH);

digitalWrite(B, HIGH);

A += Av;
B += Bv;

delay(delaytime);

if(A < 2)

A = 3;

Av *= -1;

if(B > 19)

B = 18;

Bv *= -1;

if(A >= B)

A = B-1;

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