// WS2812 / NeoPixel 48-LED Test Sketch
// Author: ChatGPT (for Muna)
// Use: Connect DATA to pin 6, VCC to 5V, GND to GND
// Library: Adafruit_NeoPixel

#include <Adafruit_NeoPixel.h>

#define LED_PIN    6      // Data pin (change if aap alag pin use kar rahe ho)
#define LED_COUNT  48     // Total LEDs

Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
    strip.show(); // Initialize all pixels to 'off'
      delay(500);
      }

      void loop() {
        // 1) All LEDs red (quick check)
          colorFill(strip.Color(150, 0, 0), 500);

            // 2) Color wipe (green -> blue -> off)
              colorWipe(strip.Color(0, 150, 0), 30);
                colorWipe(strip.Color(0, 0, 150), 30);
                  colorWipe(strip.Color(0, 0, 0), 10);

                    // 3) Rainbow sweep
                      rainbow(5);

                        // 4) Theater chase (white)
                          theaterChase(strip.Color(120, 120, 120), 50);

                            // 5) Blink all colors (red, green, blue)
                              blinkAll(strip.Color(200, 0, 0), 300, 3);
                                blinkAll(strip.Color(0, 200, 0), 300, 3);
                                  blinkAll(strip.Color(0, 0, 200), 300, 3);

                                    // 6) Rainbow cycle (slower)
                                      rainbowCycle(3);
                                      }

                                      // ---------- Helper patterns ----------

                                      void colorFill(uint32_t color, uint16_t wait_ms) {
                                        for (uint16_t i = 0; i < LED_COUNT; i++) {
                                            strip.setPixelColor(i, color);
                                              }
                                                strip.show();
                                                  delay(wait_ms);
                                                  }

                                                  void colorWipe(uint32_t color, uint8_t wait_ms) {
                                                    for (uint16_t i = 0; i < LED_COUNT; i++) {
                                                        strip.setPixelColor(i, color);
                                                            strip.show();
                                                                delay(wait_ms);
                                                                  }
                                                                  }

                                                                  void blinkAll(uint32_t color, uint16_t ms, uint8_t times) {
                                                                    for (uint8_t t = 0; t < times; t++) {
                                                                        colorFill(color, ms);
                                                                            colorFill(strip.Color(0,0,0), ms);
                                                                              }
                                                                              }

                                                                              void theaterChase(uint32_t color, uint8_t wait_ms) {
                                                                                for (int j = 0; j < 10; j++) {  // number of cycles
                                                                                    for (int q = 0; q < 3; q++) {
                                                                                          for (uint16_t i = 0; i < LED_COUNT; i += 3) {
                                                                                                  strip.setPixelColor(i + q, color);    // turn every third pixel on
                                                                                                        }
                                                                                                              strip.show();
                                                                                                                    delay(wait_ms);
                                                                                                                          for (uint16_t i = 0; i < LED_COUNT; i += 3) {
                                                                                                                                  strip.setPixelColor(i + q, 0);        // turn every third pixel off
                                                                                                                                        }
                                                                                                                                            }
                                                                                                                                              }
                                                                                                                                              }

                                                                                                                                              void rainbow(uint8_t wait_ms) {
                                                                                                                                                for (long firstPixelHue = 0; firstPixelHue < 5*65536L; firstPixelHue += 256) {
                                                                                                                                                    for (int i = 0; i < LED_COUNT; i++) {
                                                                                                                                                          int pixelHue = firstPixelHue + (i * 65536L / LED_COUNT);
                                                                                                                                                                strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue)));
                                                                                                                                                                    }
                                                                                                                                                                        strip.show();
                                                                                                                                                                            delay(wait_ms);
                                                                                                                                                                              }
                                                                                                                                                                              }

                                                                                                                                                                              void rainbowCycle(uint8_t wait_ms) {
                                                                                                                                                                                for (uint16_t j = 0; j < 256; j++) { // one cycle of all colors on the wheel
                                                                                                                                                                                    for (uint16_t i = 0; i < LED_COUNT; i++) {
                                                                                                                                                                                          uint32_t c = Wheel(((i * 256 / LED_COUNT) + j) & 255);
                                                                                                                                                                                                strip.setPixelColor(i, c);
                                                                                                                                                                                                    }
                                                                                                                                                                                                        strip.show();
                                                                                                                                                                                                            delay(wait_ms);
                                                                                                                                                                                                              }
                                                                                                                                                                                                              }

                                                                                                                                                                                                              // Input 0-255 to get a color value.
                                                                                                                                                                                                              // The colours are a transition r - g - b - back to r.
                                                                                                                                                                                                              uint32_t Wheel(byte WheelPos) {
                                                                                                                                                                                                                WheelPos = 255 - WheelPos;
                                                                                                                                                                                                                  if (WheelPos < 85) {
                                                                                                                                                                                                                      return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
                                                                                                                                                                                                                        }
                                                                                                                                                                                                                          if (WheelPos < 170) {
                                                                                                                                                                                                                              WheelPos -= 85;
                                                                                                                                                                                                                                  return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
                                                                                                                                                                                                                                    }
                                                                                                                                                                                                                                      WheelPos -= 170;
                                                                                                                                                                                                                                        return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
                                                                                                                                                                                                                                        }