Smart Touch Reactive RGB Light – Powered by Touch Sensor & Arduino UNO EK (एक) R4 Minima

1#include <Adafruit_NeoPixel.h>
2
3#define IR_SENSOR_PIN 2       // IR sensor digital output
4#define LED_PIN 6
5#define NUM_LEDS 16
6
7Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);
8
9bool isDetected = false;
10int currentPattern = 0;
11const int totalPatterns = 10;
12
13void setup() {
14  pinMode(IR_SENSOR_PIN, INPUT);
15  strip.begin();
16  strip.show();
17  Serial.begin(9600);
18}
19
20void loop() {
21  int sensorValue = digitalRead(IR_SENSOR_PIN);
22
23  if (sensorValue == HIGH && !isDetected) {
24    Serial.println("👋 Motion Detected → RGB ON");
25    isDetected = true;
26    runPattern(currentPattern);
27  } 
28  else if (sensorValue == LOW && isDetected) {
29    Serial.println("❌ No Motion → RGB OFF");
30    isDetected = false;
31    strip.clear();
32    strip.show();
33  }
34
35  delay(100);
36}
37
38void runPattern(int pattern) {
39  switch (pattern) {
40    case 0: colorWipe(strip.Color(255, 0, 0)); break;
41    case 1: colorWipe(strip.Color(0, 255, 0)); break;
42    case 2: colorWipe(strip.Color(0, 0, 255)); break;
43    case 3: rainbowCycle(); break;
44    case 4: theaterChase(strip.Color(255, 255, 0)); break;
45    case 5: colorWipe(strip.Color(255, 0, 255)); break;
46    case 6: colorWipe(strip.Color(0, 255, 255)); break;
47    case 7: sparkle(); break;
48    case 8: policeLights(); break;
49    case 9: rainbowCycle(); break;
50  }
51}
52
53void colorWipe(uint32_t color) {
54  for (int i = 0; i < strip.numPixels(); i++) {
55    strip.setPixelColor(i, color);
56  }
57  strip.show();
58}
59
60void rainbowCycle() {
61  for (int j = 0; j < 256; j++) {
62    for (int i = 0; i < strip.numPixels(); i++) {
63      strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
64    }
65    strip.show();
66    delay(5);
67  }
68}
69
70void theaterChase(uint32_t color) {
71  for (int j = 0; j < 10; j++) {
72    for (int q = 0; q < 3; q++) {
73      for (int i = 0; i < strip.numPixels(); i += 3) {
74        strip.setPixelColor(i + q, color);
75      }
76      strip.show();
77      delay(50);
78      for (int i = 0; i < strip.numPixels(); i += 3) {
79        strip.setPixelColor(i + q, 0);
80      }
81    }
82  }
83}
84
85void policeLights() {
86  for (int i = 0; i < 10; i++) {
87    colorWipe(strip.Color(255, 0, 0));
88    delay(100);
89    colorWipe(strip.Color(0, 0, 255));
90    delay(100);
91  }
92}
93
94void sparkle() {
95  for (int i = 0; i < 20; i++) {
96    int pixel = random(NUM_LEDS);
97    strip.setPixelColor(pixel, strip.Color(random(255), random(255), random(255)));
98    strip.show();
99    delay(50);
100    strip.setPixelColor(pixel, 0);
101  }
102}
103
104uint32_t Wheel(byte WheelPos) {
105  WheelPos = 255 - WheelPos;
106  if (WheelPos < 85)
107    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
108  if (WheelPos < 170) {
109    WheelPos -= 85;
110    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
111  }
112  WheelPos -= 170;
113  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
114}