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Arduino: Blinking LED Strip
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#include "FastLED.h" | |
// How many leds in your strip? | |
#define NUM_LEDS 50 | |
// For led chips like Neopixels, which have a data line, ground, and power, you just | |
// need to define DATA_PIN. | |
#define DATA_PIN 3 | |
// Define the array of leds | |
CRGB leds[NUM_LEDS]; | |
void setup() { | |
FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS); | |
} | |
//fill whole stripe with one color | |
void wholecolor(CRGB col) { | |
for (int i=0;i<NUM_LEDS;i++) { | |
leds[i] = col; | |
} | |
FastLED.show(); | |
} | |
//Turn it off | |
void off() {wholecolor(CRGB::Black);} | |
// Run 5 lights in segments by 10 | |
void run5(CRGB col, int speed=200) { | |
for (int i=0;i<10;i++) { | |
leds[i] = col; | |
leds[i+10] = col; | |
leds[i+20] = col; | |
leds[i+30] = col; | |
leds[i+40] = col; | |
leds[i+9] = CRGB::Black; | |
leds[i+19] = CRGB::Black; | |
leds[i+29] = CRGB::Black; | |
leds[i+39] = CRGB::Black; | |
if (i>0) { | |
leds[i-1] = CRGB::Black; | |
} else { | |
leds[49] = CRGB::Black; | |
} | |
FastLED.show(); | |
delay(speed); | |
} | |
} | |
uint8_t r=255,g=255,b=255; | |
void loop() { | |
//effect1 | |
/* | |
for (int i=0;i<NUM_LEDS;i++) { | |
leds[i] = CRGB::Red; | |
if (i>0) {leds[i-1] = CRGB::Black;} | |
else {leds[NUM_LEDS-1] = CRGB::Black;} | |
FastLED.show(); | |
delay(50); | |
} | |
*/ | |
//Effect 2 | |
/* | |
for (int i=0;i<NUM_LEDS;i++) { | |
leds[i] = col1; | |
if (i>0) {leds[i-1] = CRGB::Black;} | |
else {leds[NUM_LEDS-1] = CRGB::Black;} | |
leds[NUM_LEDS-i-1] = col2; | |
if (i<49) {leds[NUM_LEDS-i] = CRGB::Black;} | |
else {leds[0] = CRGB::Black;} | |
FastLED.show(); | |
delay(20); | |
} | |
*/ | |
wholecolor((CRGB)(b<<0 | g<<8 | r<<16)); | |
delay(200); | |
r = r - 5; | |
if (r<10) r=255; | |
b = b - 7; | |
if (b<10) b=255; | |
g = g - 3; | |
if (g<10) g=255; | |
} |
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