How to Program RGBWW LED Strips with Arduino

				
					#include   // For controlling addressable RGB LED strips

// Addressable RGB LED configuration
#define RGB_PIN     4    // D2
#define RGB_LEDS    80   // Number of addressable RGB LEDs
Adafruit_NeoPixel rgbStrip = Adafruit_NeoPixel(RGB_LEDS, RGB_PIN, NEO_GRB + NEO_KHZ800);

// Non-addressable WW+CW LED configuration
#define WW_PIN     12    // D6 - Warm White
#define CW_PIN     13    // D7 - Cool White

// PWM range setting (0-1023 for ESP8266)
const int pwmRange = 1023;

void setup() {
  Serial.begin(115200);
  
  // Initialize addressable RGB LED strip
  rgbStrip.begin();
  rgbStrip.show(); // Initialize all LEDs to OFF
  
  // Set WW/CW pins as output
  pinMode(WW_PIN, OUTPUT);
  pinMode(CW_PIN, OUTPUT);
  analogWrite(WW_PIN, 0);
  analogWrite(CW_PIN, 0);
  
  Serial.println("RGBWW LED Controller Ready");
}

void loop() {
  // Example 1: RGB rainbow effect + warm white light
  rainbowCycle(10);
  setWhite(255, 50); // Strong warm white, weak cool white
  
  // Example 2: Static RGB blue + cool white light
  setRGBColor(0, 0, 255);
  setWhite(50, 255);
  delay(2000);
  
  // Example 3: RGB theater chase + white gradient
  theaterChase(0, 255, 0, 50); // Green theater chase effect
  for(int i = 0; i <= 255; i++) {
    setWhite(i, 255-i);
    delay(20);
  }
}

// Set RGB color (0-255)
void setRGBColor(uint8_t r, uint8_t g, uint8_t b) {
  for(int i=0; i<rgbStrip.numPixels(); i++) {
    rgbStrip.setPixelColor(i, rgbStrip.Color(r, g, b));
  }
  rgbStrip.show();
}

// Set white light ratio (0-255)
void setWhite(uint8_t ww, uint8_t cw) {
  analogWrite(WW_PIN, map(ww, 0, 255, 0, pwmRange));
  analogWrite(CW_PIN, map(cw, 0, 255, 0, pwmRange));
  
  Serial.print("Set White - WW:");
  Serial.print(ww);
  Serial.print(" CW:");
  Serial.println(cw);
}

// Rainbow effect function
void rainbowCycle(uint8_t wait) {
  uint16_t i, j;
  for(j=0; j<256*5; j++) { // 5 cycles of all colors on the wheel
    for(i=0; i< rgbStrip.numPixels(); i++) {
      rgbStrip.setPixelColor(i, Wheel(((i * 256 / rgbStrip.numPixels()) + j) & 255));
    }
    rgbStrip.show();
    delay(wait);
  }
}

// Theater chase effect
void theaterChase(uint8_t r, uint8_t g, uint8_t b, uint8_t wait) {
  for (int q=0; q < 3; q++) {
    for (int i=0; i < rgbStrip.numPixels(); i=i+3) {
      rgbStrip.setPixelColor(i+q, rgbStrip.Color(r, g, b)); // Light up every 3rd LED
    }
    rgbStrip.show();
    delay(wait);
    for (int i=0; i < rgbStrip.numPixels(); i=i+3) {
      rgbStrip.setPixelColor(i+q, 0); // Turn off
    }
  }
}

// Helper function for the rainbow effect
uint32_t Wheel(byte WheelPos) {
  WheelPos = 255 - WheelPos;
  if(WheelPos < 85) {
    return rgbStrip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  }
  if(WheelPos < 170) {
    WheelPos -= 85;
    return rgbStrip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
  WheelPos -= 170;
  return rgbStrip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}