Uses fastLED and IRremote.

LED cloud

//import the necessary libraries
#include "FastLED.h"
#include "IRremote.h"

//define some variables
#define LEDPIN     6
#define RECV_PIN  3
#define LED_TYPE     NEOPIXEL
#define NUM_LEDS    15
#define BRIGHTNESS  200
CRGB leds[NUM_LEDS];
CRGB endclr;
CRGB midclr;

//set up IR receiver information
IRrecv irrecv(RECV_PIN);
decode_results results;

//<————————————————————————————SETUP————————————————————————————>
void setup()
{
//begin serial communication
  Serial.begin(9600);
//sanity delay
  delay(3000); 
//start the receiver
  irrecv.enableIRIn(); 
  
//set up LED strip information
FastLED.addLeds<LED_TYPE,LEDPIN>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
FastLED.setBrightness(BRIGHTNESS);
}

//<—————————————————————————LOOP———————————————————————————————>
void loop() {
if (irrecv.decode(&results)) {
  
//rotating base colour used by many of the patterns
uint8_t gHue = 0; 
FastLED.delay(1000/120);
EVERY_N_MILLISECONDS( 20 ) { gHue++; }  

//<——————————————————BUTTON FUNCTIONS—————————————————————————>
//power button = plain white
if (results.value == 0xFD00FF){
fill_solid(leds,NUM_LEDS,CRGB::White);
FastLED.show();}

//vol+ = brightness up
if (results.value == 0xFD807F){
FastLED.setBrightness(255);
FastLED.show();}

//vol- = brightness down
if (results.value == 0xFD906F){
fadeLightBy(leds, NUM_LEDS, 30);
FastLED.show();}

//play/pause = cycles through colours
if (results.value == 0xFDA05F) {
uint8_t i = beatsin8(130, 0, 150);
fill_solid(leds, NUM_LEDS, CHSV(i, 255, 150));
FastLED.show();
}

//left = Custom gradient blend
if (results.value == 0xFD20DF) {
uint8_t speed = beatsin8(10,0,255);
endclr = blend(CHSV(160,185,255), CRGB::Pink, speed);
midclr = blend(CRGB::Purple, CRGB::Green, speed);

fill_gradient_RGB(leds, 0, endclr, NUM_LEDS/2, midclr);
fill_gradient_RGB(leds, NUM_LEDS/2+1, midclr, NUM_LEDS, endclr);
FastLED.show();}

//right = Custom solid colour
if (results.value == 0xFD609F) {
fill_solid(leds,NUM_LEDS,CRGB::Purple);
FastLED.show();}


//func/stop = xmas
if (results.value == 0xFD40BF) {
uint8_t dot = beatsin8(50, 0, NUM_LEDS);
leds[dot] = CRGB::Red;
leds[dot+1] = CRGB::Green;
FastLED.show();}


//up = bpm 
if (results.value == 0xFD50AF) {
CRGBPalette16 palette = PartyColors_p;
uint8_t beat = beatsin8( 70, 64, 255);
for( int i = 0; i < NUM_LEDS; i++) { 
leds[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));}
FastLED.show();
}

//down = fire
if (results.value == 0xFD10EF) {
CRGBPalette16 palette = HeatColors_p;
uint8_t beat = beatsin8( 50, 64, 255);
for( int i = 0; i < NUM_LEDS; i++) { 
leds[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10)); }
FastLED.show();}

//eq = rainbow
if (results.value == 0xFDB04F) {
fill_rainbow( leds, NUM_LEDS-3, gHue, 7);
leds[12] = CRGB::Blue;   //adjust the rainbow slightly towards the purple end
leds[13] = CRGB::Purple;
leds[14] = CRGB::Purple;
FastLED.show();}

//st/rept = rainbow w stars
if (results.value == 0xFD708F) {
fill_rainbow( leds, NUM_LEDS-3, gHue, 7);
leds[12] = CRGB::Blue;
leds[13] = CRGB::Purple;
leds[14] = CRGB::Purple;
addGlitter(70);
FastLED.show();}

// 0 = day
if (results.value == 0xFD30CF) {
uint8_t speed = beatsin8(8,0,255);
endclr = blend(CRGB::Yellow, CHSV(0,0,170), speed);
midclr = blend(CHSV(0,0,150), CRGB::Yellow, speed);

fill_gradient_RGB(leds, 0, endclr, NUM_LEDS/2, midclr);
fill_gradient_RGB(leds, NUM_LEDS/2+1, midclr, NUM_LEDS, endclr);
FastLED.show();}

// 1 = sunrise (pink & blue)
if (results.value == 0xFD08F7) {
fill_gradient(leds, 0, CHSV(160,185,210), NUM_LEDS-1, CHSV(237,141,255));
FastLED.show();}

// 2 = sunset (orange & blue)
if (results.value == 0xFD8877) {
fill_gradient_RGB(leds, 0, CHSV(150,255,200), NUM_LEDS-1, CHSV(25,255,255));
FastLED.show();}

// 3 = sunrise to sunset
if (results.value == 0xFD48B7) {
uint8_t speed = beatsin8(10,0,255);
endclr = blend(CHSV(150,255,210), CHSV(160,185,200), speed);
midclr = blend(CHSV(25,255,255), CHSV(237,141,255), speed);

fill_gradient_RGB(leds, 0, endclr, NUM_LEDS/2, midclr);
fill_gradient_RGB(leds, NUM_LEDS/2+1, midclr, NUM_LEDS, endclr);
FastLED.show();}

// 4 = night
if (results.value == 0xFD28D7) {
fill_gradient_RGB(leds, 0, CHSV(160,255,150), NUM_LEDS-1, CHSV(180,230,80));
FastLED.show();}

// 5 = starry night
if (results.value == 0xFDA857) {
fill_gradient_RGB(leds, 0, CHSV(160,255,150), NUM_LEDS-1, CHSV(180,230,80)); 
addGlitter(80);
FastLED.show();}
  
// 6 = rain
if (results.value == 0xFD6897) {
fadeToBlackBy( leds, NUM_LEDS, 30);
int pos = random16(NUM_LEDS);
leds[pos] = CHSV(135,80,200);
FastLED.show(); }
  
// 7 = acid rain
if (results.value == 0xFD18E7) {
fadeToBlackBy( leds, NUM_LEDS, 130);
int pos = random16(NUM_LEDS);
leds[pos] = CRGB::Green;
FastLED.show(); }

// 8 = snow
if (results.value == 0xFD9867) {
fadeToBlackBy( leds, NUM_LEDS, 30);
addGlitter(50);
FastLED.show();}

// 9 = storm
if (results.value == 0xFD58A7) {
fadeToBlackBy( leds, NUM_LEDS, 30);
fill_solid(leds,NUM_LEDS,CHSV(0,0,50));
addGlitter(60);
lightning();
FastLED.show();}

irrecv.resume(); // Receive the next value
}}

//<——————————————————————OTHER FUNCTIONS————————————————————>

void addGlitter( fract8 chanceOfGlitter) 
{if( random8() < chanceOfGlitter) {
    leds[ random16(NUM_LEDS) ] += CRGB::White;} }

void lightning ()
{EVERY_N_MILLISECONDS (4000) {
uint8_t i = beatsin8(6, 0, 255);
fill_solid(leds, NUM_LEDS, CHSV(160, 10, i));
} }