// This #include statement was automatically added by the Particle IDE.
#include <neopixel.h>
#define PIXEL_PIN D3
#define PIXEL_COUNT 8
#define PIXEL_TYPE WS2812
Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXEL_COUNT, PIXEL_PIN, PIXEL_TYPE);
int fadeDuration = 1000 * 60 * 15;
long timeStart = -1;
bool timerStarted = false;
bool fadingToRed = true; // Added flag to track the direction of the fade
void setup() {
strip.begin();
// Set the initial state to white
for (int i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, 255, 255, 255);
}
strip.show();
Particle.function("calEvent", calEvent);
}
void loop() {
if (timerStarted == true) {
long timeNow = millis();
long timeElapsed = timeNow - timeStart;
if (timeElapsed < fadeDuration) {
int colorValue = map(timeElapsed, 0, fadeDuration, 0, 255);
int r, g, b;
if (fadingToRed) {
// Fade from white to red
r = 255;
g = 255 - colorValue;
b = 255 - colorValue;
} else {
// Fade from red to white
r = 255;
g = 0 + colorValue;
b = 0 + colorValue;
}
for (int i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, r, g, b);
}
strip.show();
} else {
if (fadingToRed) {
// Toggle the direction of the fade
fadingToRed = !fadingToRed;
// Reset the timer and flag
timeStart = millis();
} else {
// Set the light bar to white and stop the timer
for (int i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, 255, 255, 255);
}
strip.show();
timerStarted = false;
fadingToRed = !fadingToRed; //allows function to be called multiple times and still have the same fade each calendar event
}
}
}
}
int calEvent(String cmd) {
timeStart = millis();
timerStarted = true;
return 1;
}
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