#include <FastLED.h>
// Define the Arduino pins connected to the buttons
int Buttons[] = {0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, A0, A1, A2, A3, A4, A5};
// Arrays to keep track of LEDs that are active and need to fade out or change rainbow color
bool ledsActive[21];
bool ledsRBActive[21];
// Arrays to store the current intensity of each LED segment
byte fadeValues[21];
byte RGBValues[21];
// Keep track of when each LED was turned ON
unsigned long ledsActiveStartTime[21];
int mode = 0; // Current color mode (0: Red, 1: Blue, 2: Green)
#define NUM_LEDS 60 // Total number of LEDs on the strip
#define LEDS_PER_GROUP 3 // LEDs to fill with each color
#define DATA_PIN 12 // Arduino pin connected to the data input of the first WS2812B LED
CRGB leds[NUM_LEDS]; // Array to store the color of each LED
void setup() {
// Set the button pins as inputs
for (int x = 0; x < 18; x++) {
pinMode(Buttons[x], INPUT);
}
// Initialize FastLED with the correct LED configuration
FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);
FastLED.clear();
FastLED.show();
}
void loop() {
// Check for button press and update LED colors
for (int x = 0; x < 18; x++) {
if (digitalRead(Buttons[x])) {
LightLED(x + 1); // Light up corresponding LEDs for the pressed button
}
}
// Check if analog inputs A6 and A7 are above the threshold (button pressed) and light up LEDs accordingly
if (analogRead(A6) > 512) {
LightLED(19);
}
if (analogRead(A7) > 512) {
LightLED(20);
}
// Check if digital pin 1 is pressed and change color mode
if (digitalRead(1) == true) {
mode++;
if (mode >= 9) mode = 0; // Wrap around the color modes
delay(300); // Add a delay to avoid multiple rapid mode changes due to button bouncing
}
// Update fading LEDs
for (int x = 0; x < 21; x++) {
// Check if the current LED segment is active (turned on)
if (ledsActive[x]) {
// Check if the time since the LED segment was turned on exceeds 500 milliseconds
// If yes, it's time to start fading out the LED segment
if (millis() - ledsActiveStartTime[x] >= 500) {
ledsActive[x] = false;
fadeValues[x] = 255; // Start fading out this LED segment
}
}
}
// RGB rainbow color handling:
for (int x = 0; x < 21; x++) {
if (ledsRBActive[x]) {
if (millis() - ledsActiveStartTime[x] >= 400) {
// Update the RGBValues to transition between colors in the sequence
RGBValues[x]++;
// Calculate the index of the first LED in the corresponding segment
int ledIndex = (x - 1) * LEDS_PER_GROUP;
// Update the color of the LEDs based on the current RGBValues
// This sequence changes from Red to Violet and then starts again from Red
if (RGBValues[x] == 1) {
leds[ledIndex + 0] = CRGB(255, 0, 0); // Red
leds[ledIndex + 1] = CRGB(230, 40, 9); // Orange
leds[ledIndex + 2] = CRGB(230, 52, 24); // Light Orange
}
else if (RGBValues[x] == 2) {
leds[ledIndex + 0] = CRGB(230, 40, 9); // Orange
leds[ledIndex + 1] = CRGB(230, 52, 24); // Light Orange
leds[ledIndex + 2] = CRGB(255, 255, 0); // Yellow
}
else if (RGBValues[x] == 3) {
leds[ledIndex + 0] = CRGB(230, 50, 20); // Light Orange
leds[ledIndex + 1] = CRGB(255, 255, 0); // Yellow
leds[ledIndex + 2] = CRGB(45, 255, 45); // Light Green
}
else if (RGBValues[x] == 4) {
leds[ledIndex + 0] = CRGB(255, 255, 0); // Yellow
leds[ledIndex + 1] = CRGB(45, 255, 45); // Light Green
leds[ledIndex + 2] = CRGB(0, 128, 0); // Green
}
else if (RGBValues[x] == 5) {
leds[ledIndex + 0] = CRGB(45, 255, 45); // Light Green
leds[ledIndex + 1] = CRGB(0, 128, 0); // Green
leds[ledIndex + 2] = CRGB(0, 0, 255); // Blue
}
else if (RGBValues[x] == 6) {
leds[ledIndex + 0] = CRGB(0, 128, 0); // Green
leds[ledIndex + 1] = CRGB(0, 0, 255); // Blue
leds[ledIndex + 2] = CRGB(148, 0, 211); // Violet
}
else if (RGBValues[x] == 7) {
leds[ledIndex + 0] = CRGB(0, 0, 255); // Blue
leds[ledIndex + 1] = CRGB(148, 0, 211); // Violet
leds[ledIndex + 2] = CRGB(255, 0, 0); // Red
}
else if (RGBValues[x] == 8) {
leds[ledIndex + 0] = CRGB(148, 0, 211); // Violet
leds[ledIndex + 1] = CRGB(255, 0, 0); // Red
leds[ledIndex + 2] = CRGB(230, 40, 9); // Orange
}
else if (RGBValues[x] == 9) {
leds[ledIndex + 0] = CRGB(255, 0, 0); // Red
leds[ledIndex + 1] = CRGB(230, 40, 9); // Orange
leds[ledIndex + 2] = CRGB(255, 165, 0); // Light Orange
}
// After the last color transition, reset the sequence and activate fading out
if (RGBValues[x] == 10) {
ledsRBActive[x] = false;
ledsActive[x] = true;
ledsActiveStartTime[x] = millis() - 501;
}
// Update the LEDs to show the new colors
FastLED.show();
ledsActiveStartTime[x] = millis(); // Record the time when the LEDs were updated
}
}
}
// Fade out LEDs that were turned on by button presses
for (int x = 0; x < 21; x++) {
if (fadeValues[x] > 0 && !ledsActive[x]) {
int ledIndex = (x - 1) * LEDS_PER_GROUP;
fadeValues[x]--;
for (int i = 0; i < LEDS_PER_GROUP; i++) {
leds[ledIndex + i].fadeToBlackBy(1);
}
FastLED.show();
}
}
}
// Function to light up LEDs based on button press and color mode
void LightLED(int buttonIN) {
int ledIndex = (buttonIN - 1) * LEDS_PER_GROUP;
// Special mode 8 activates the RGB sequence for the specific button
if (mode == 8) {
RGBValues[buttonIN] = 0;
ledsRBActive[buttonIN] = true;
ledsActiveStartTime[buttonIN] = millis() - 1000;
leds[ledIndex + 0] = CRGB(255, 0, 0); // Red
leds[ledIndex + 1] = CRGB(230, 40, 9); // Orange
leds[ledIndex + 2] = CRGB(230, 50, 20); // Light Orange
FastLED.show();
}
// Mode 7 sets specific colors for each of the LEDs
else if (mode == 7) {
leds[ledIndex + 0] = CRGB(255, 30, 30);
leds[ledIndex + 1] = CRGB::Yellow;
leds[ledIndex + 2] = CRGB(20, 20, 255);
ledsActive[buttonIN] = true; // Mark this LED segment as active
ledsActiveStartTime[buttonIN] = millis(); // Record the time when it was turned ON
}
// Other modes set a specific color for the LEDs
else {
ledsActive[buttonIN] = true; // Mark this LED segment as active
ledsActiveStartTime[buttonIN] = millis(); // Record the time when it was turned ON
for (int i = 0; i < LEDS_PER_GROUP; i++) {
leds[ledIndex + i] = getColor(mode);
}
}
FastLED.show(); // Update the LEDs to show the new colors
}
// Function to get the color based on the color mode
CRGB getColor(int colorMode) {
switch (colorMode) {
case 0: return CRGB::Red; // Red
case 1: return CRGB::Green; // Green
case 2: return CRGB::Blue; // Blue
case 3: return CRGB::White; // White
case 4: return CRGB::Purple; // Purple
case 5: return CRGB(230, 40, 9); // Orange
case 6: return CRGB(50, 255, 20); // Fluorescent Green
default: return CRGB::Black;
}
}