Night Light w/Arduino

Night Light

Parts


Additional Resources


Code

# include <Adafruit_NeoPixel.h>

// change this to the digital pin you used on the Arduino
# define PIN 1

Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
strip.begin();
strip.show(); // Initialize all pixels to 'off'
strip.setBrightness(64);
}

void loop() {
rainbow(50);
}

// Fill the dots one after the other with a color
void colorWipe(uint32_t c, uint8_t wait) {
for (uint16_t i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, c);
strip.show();
delay(wait);
}
}

void rainbow(uint8_t wait) {
uint16_t i, j;

for (j = 0; j < 256; j++) {
for (i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel((i + j) & 255));
}
strip.show();
delay(wait);
}
}

// Slightly different, this makes the rainbow equally distributed throughout
void rainbowCycle(uint8_t wait) {
uint16_t i, j;

for (j = 0; j < 256 * 5; j++) { // 5 cycles of all colors on wheel
for (i = 0; i < strip.numPixels(); i++) {
strip.setPixelColor(i, Wheel(((i * 256 / strip.numPixels()) + j) & 255));
}
strip.show();
delay(wait);
}
}

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