Герлянда

#include <Adafruit_NeoPixel.h>
#include <Keypad.h>

#define PIN 2
#define NUMPIXELS 32


Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
int delayval = 100;

int redColor = random(10,200);
int greenColor = random(10,200);
int blueColor = random(10,200);


const byte ROWS = 4;
const byte COLS = 4;
char key;
char keys[ROWS][COLS] = {
{'1','4','7','A'},
{'2','5','8','B'},
{'3','6','9','C'},
{'G','0','J','D'}
};

byte rowPins[ROWS] = { 5, 4, 3, 6 };

byte colPins[COLS] = { 9, 8, 7 ,10};

Keypad kpd = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );

void setup()
{
pixels.begin();
pinMode(PIN,OUTPUT);
}

void loop() {
char key2 = key;




key = kpd.getKey();
if(!key)
{
  key = key2;
}
switch (key)
{
case '1':

    int redColor = random(10,200);
    int greenColor = random(10,200);
    int blueColor = random(10,200);

    for (int i=0; i < NUMPIXELS; i++)
    {
        pixels.setPixelColor(i, pixels.Color(redColor, greenColor, blueColor));
        pixels.show();
        delay(10);
    }

case '2':
 for (int i=0 ; i < NUMPIXELS; i++)
 {


        pixels.setPixelColor(i, pixels.Color(255,0,0));
        pixels.show();
}
break;



case '3':
for (int i=0; i < NUMPIXELS; i++)
{
        pixels.setPixelColor(i, pixels.Color(0,255,0));
        pixels.show();
        delay(10);
}
break;




case '4':
    for (int i=0; i < NUMPIXELS; i++)
    {
        pixels.setPixelColor(i, pixels.Color(0,0,255));
        pixels.show();
         delay(10);
}
break;


case '5':


for (int i=0 ; i < NUMPIXELS; i++)
{
    pixels.setPixelColor(i, pixels.Color(random(10,200),random(10,200),0));
    pixels.show();
    delay(10);


}
break;

case '6':

for (int i=0 ; i < NUMPIXELS; i++)
{
    pixels.setPixelColor(i, pixels.Color(random(10,200),0,random(10,200)));
    pixels.show();
    delay(10);


}

break;

case '7':

for (int i=0 ; i < NUMPIXELS; i++)
{
    pixels.setPixelColor(i, pixels.Color(0,random(10,200),random(10,200)));
    pixels.show();
    delay(10);


}

break;

case'8':
for (int i=0 ; i < NUMPIXELS; i++)
{
    for(int d=0; d < 255;d++)
    {
        pixels.setPixelColor(i, pixels.Color(d,255-d,255));
        pixels.show();
        delay(10);
    }

}
break;


case'9':


for(int i=0; i<NUMPIXELS; i++)
{
    pixels.setPixelColor(i, pixels.Color(0,0,random(10,200)));
    pixels.show();


}
break;

case'0':

for(int i=0; i<NUMPIXELS; i++)
{

pixels.setPixelColor(i, pixels.Color(0,0,random(10,200)));
pixels.show();

}

break;

case'D':
for (int i=0 ; i < NUMPIXELS; i++)
{
    pixels.setPixelColor(i, pixels.Color(0,0,0));
    pixels.show();
    delay(10);


}
break;

case'A':
for(int i=0 ; i < NUMPIXELS; i++)
{
    for(int v=0 ; v <= 255;v++)
    {
        pixels.setPixelColor(i , pixels.Color(0+v,200-v,0));
        pixels.show();


    }


}


break;

case'b':

for(int i=0 ; i < NUMPIXELS; i++)
{
    for(int v=0 ; v <= 255 ; v++)
    {
        pixels.setPixelColor(i , pixels.Color(200-v,0+v,0));
        pixels.show();


    }


}



break;

case'c':

for(int i=0 ; i < NUMPIXELS; i++)
{
    for(int v=0 ; v <= 255;v++)
    {
        pixels.setPixelColor(i , pixels.Color(0,200-v,0+v));
        pixels.show();


    }


}



break;



case'j':

for(int i=0 ; i < NUMPIXELS; i++)
{
    for(int v=0 ; v <= 255;v++)
    {

        pixels.setPixelColor(i , pixels.Color(200-v,0+v,0));
        pixels.show();


    }

}



break;



//a b c j
}
}