Smart Ambient RGB Light – Powered by LDR & Arduino UNO EK (एक) R4 Minima

1#include <Adafruit_NeoPixel.h>
2#define LED_PIN 6
3#define NUM_LEDS 16
4#define LDR_PIN A0
5
6Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);
7int currentPattern = 0;
8const int totalPatterns = 10;
9bool isDark = false;
10unsigned long lastChange = 0;
11
12void setup() {
13  strip.begin();
14  strip.show();
15  Serial.begin(9600);
16}
17
18void loop() {
19  int lightValue = analogRead(LDR_PIN);
20  if (lightValue < 300) {
21    if (!isDark) {
22      isDark = true;
23      Serial.println("🌑 It's dark – RGB ON");
24    }
25    if (millis() - lastChange > 5000) {
26      currentPattern = (currentPattern + 1) % totalPatterns;
27      lastChange = millis();
28    }
29    runPattern(currentPattern);
30  } else {
31    if (isDark) {
32      isDark = false;
33      Serial.println("☀️ Bright – RGB OFF");
34      strip.clear();
35      strip.show();
36    }
37  }
38  delay(100);
39}