66 lines
1.8 KiB
Arduino
66 lines
1.8 KiB
Arduino
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#include <FastLED.h>
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// Example showing how to use FastLED color functions
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// even when you're NOT using a "pixel-addressible" smart LED strip.
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//
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// This example is designed to control an "analog" RGB LED strip
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// (or a single RGB LED) being driven by Arduino PWM output pins.
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// So this code never calls FastLED.addLEDs() or FastLED.show().
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//
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// This example illustrates one way you can use just the portions
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// of FastLED that you need. In this case, this code uses just the
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// fast HSV color conversion code.
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//
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// In this example, the RGB values are output on three separate
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// 'analog' PWM pins, one for red, one for green, and one for blue.
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#define REDPIN 5
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#define GREENPIN 6
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#define BLUEPIN 3
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// showAnalogRGB: this is like FastLED.show(), but outputs on
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// analog PWM output pins instead of sending data to an intelligent,
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// pixel-addressable LED strip.
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//
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// This function takes the incoming RGB values and outputs the values
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// on three analog PWM output pins to the r, g, and b values respectively.
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void showAnalogRGB( const CRGB& rgb)
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{
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analogWrite(REDPIN, rgb.r );
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analogWrite(GREENPIN, rgb.g );
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analogWrite(BLUEPIN, rgb.b );
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}
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// colorBars: flashes Red, then Green, then Blue, then Black.
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// Helpful for diagnosing if you've mis-wired which is which.
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void colorBars()
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{
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showAnalogRGB( CRGB::Red ); delay(500);
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showAnalogRGB( CRGB::Green ); delay(500);
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showAnalogRGB( CRGB::Blue ); delay(500);
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showAnalogRGB( CRGB::Black ); delay(500);
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}
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void loop()
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{
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static uint8_t hue;
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hue = hue + 1;
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// Use FastLED automatic HSV->RGB conversion
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showAnalogRGB( CHSV( hue, 255, 255) );
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delay(20);
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}
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void setup() {
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pinMode(REDPIN, OUTPUT);
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pinMode(GREENPIN, OUTPUT);
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pinMode(BLUEPIN, OUTPUT);
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// Flash the "hello" color sequence: R, G, B, black.
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colorBars();
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}
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