59 lines
1.7 KiB
Arduino
59 lines
1.7 KiB
Arduino
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//***************************************************************
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// beat8 example. Moves pixel position based on beat8.
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//
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// -Marc Miller, Jan 2016
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// Updated Feb 2016 - made move speed and fade rate variables.
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//***************************************************************
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#include "FastLED.h"
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#define LED_TYPE LPD8806
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#define DATA_PIN 11
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#define CLOCK_PIN 13
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#define NUM_LEDS 32
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#define COLOR_ORDER GRB
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#define BRIGHTNESS 50
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CRGB leds[NUM_LEDS];
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uint8_t gHue = 0; // Used to cycle through rainbow.
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uint8_t moveSpeed = 6; // Higher value moves pixel faster.
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uint8_t fadeRate = 80; // Use lower value to give a fading tail.
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//---------------------------------------------------------------
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void setup()
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{
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Serial.begin(115200); // Allows serial monitor output (check baud rate)
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delay(3000); // 3 second delay
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FastLED.addLeds<LED_TYPE, DATA_PIN, CLOCK_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
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FastLED.setBrightness(BRIGHTNESS);
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}
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//---------------------------------------------------------------
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void loop()
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{
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EVERY_N_MILLISECONDS( 50 ) { gHue++; } // Slowly cycle through the rainbow
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beat8_tail(); // Subroutine to move the pixel!
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FastLED.show(); // Display the pixels.
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}//end main loop
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//===============================================================
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void beat8_tail()
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{
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EVERY_N_MILLISECONDS( 5 ) {
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fadeToBlackBy( leds, NUM_LEDS, fadeRate); // Fade out pixels.
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}
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uint16_t pos = beat8(moveSpeed) % NUM_LEDS; // modulo the position to be within NUM_LEDS
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leds[pos] = CHSV( gHue, 200, 255);
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//Serial.print("pos: "); Serial.println(pos);
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}
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//---------------------------------------------------------------
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//EOF
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