Created
August 28, 2017 22:10
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//*************************************************************** | |
// Quick example of lighting up blocks of pixels | |
// | |
// Marc Miller, Aug 2017 | |
//*************************************************************** | |
#include "FastLED.h" | |
#define LED_TYPE LPD8806 | |
#define DATA_PIN 11 | |
#define CLOCK_PIN 13 | |
#define NUM_LEDS 32 | |
CRGB leds[NUM_LEDS]; | |
uint8_t blockSize = 8; //number of pixels per section | |
//------------------------------------------------------------------ | |
void setup(){ | |
Serial.begin(115200); // Allows serial monitor output (check baud rate) | |
delay(1500); // Power-up delay | |
FastLED.addLeds<LED_TYPE, DATA_PIN, CLOCK_PIN, GRB>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip); | |
FastLED.setBrightness(64); | |
} | |
//------------------------------------------------------------------ | |
void loop(){ | |
EVERY_N_SECONDS(2) { //change the block size ever few seconds | |
blockSize = random8(2,9); | |
} | |
for (uint8_t n=0; n<(NUM_LEDS/(blockSize*2))+1; n++) { | |
uint8_t pos; | |
for (uint8_t i=0; i<blockSize; i++) { | |
pos = (n*blockSize*2) + i; | |
if ( pos >= NUM_LEDS ) { break; } //don't go past last pixel | |
leds[pos] = CRGB(255,0,0); | |
} | |
for (uint8_t i=0; i<blockSize; i++) { | |
pos = (n*blockSize*2) + i + blockSize; | |
if ( pos >= NUM_LEDS ) { break; } //don't go past last pixel | |
leds[pos] = CRGB(0,255,0); | |
} | |
} | |
FastLED.show(); | |
}//----End main loop---- | |
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