118 lines
5.2 KiB
Arduino
118 lines
5.2 KiB
Arduino
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/* Display Template for FastLED
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*
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* By: Andrew Tuline
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*
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* Modified by: Andrew Tuline
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*
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* Date: July, 2015
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*
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* This is a simple non-blocking FastLED display sequence template.
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*
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*
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*/
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#include "FastLED.h" // FastLED library.
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#if FASTLED_VERSION < 3001000
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#error "Requires FastLED 3.1 or later; check github for latest code."
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#endif
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#define qsubd(x, b) ((x>b)?b:0) // Clip. . . . A digital unsigned subtraction macro. if result <0, then x=0. Otherwise, x=b.
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#define qsuba(x, b) ((x>b)?x-b:0) // Level shift. . . Unsigned subtraction macro. if result <0, then x=0. Otherwise x=x-b.
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// Fixed definitions cannot change on the fly.
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#define LED_DT 12 // Data pin to connect to the strip.
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#define LED_CK 11 // Clock pin for WS2801 or APA102.
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#define COLOR_ORDER BGR // It's GRB for WS2812 and BGR for APA102.
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#define LED_TYPE APA102 // Using APA102, WS2812, WS2801. Don't forget to modify LEDS.addLeds to suit.
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#define NUM_LEDS 60 // Number of LED's.
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// Global variables can be changed on the fly.
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uint8_t max_bright = 128; // Overall brightness.
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struct CRGB leds[NUM_LEDS]; // Initialize our LED array.
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// Palette definitions
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CRGBPalette16 currentPalette;
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CRGBPalette16 targetPalette;
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TBlendType currentBlending; // NOBLEND or LINEARBLEND
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// Define variables used by the sequences.
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int twinkrate = 100; // The higher the value, the lower the number of twinkles.
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uint8_t thisdelay = 10; // A delay value for the sequence(s).
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uint8_t thisfade = 8; // How quickly does it fade? Lower = slower fade rate.
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uint8_t thishue = 50; // The hue.
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uint8_t thissat = 255; // The saturation, where 255 = brilliant colours.
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uint8_t thisbri = 255; // Brightness of a sequence.
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bool randhue = 1; // Do we want random colours all the time? 1 = yes.
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void setup() {
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Serial.begin(57600); // Initialize serial port for debugging.
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delay(1000); // Soft startup to ease the flow of electrons.
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LEDS.addLeds<LED_TYPE, LED_DT, LED_CK, COLOR_ORDER>(leds, NUM_LEDS); // Use this for WS2801 or APA102
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// LEDS.addLeds<LED_TYPE, LED_DT, COLOR_ORDER>(leds, NUM_LEDS); // Use this for WS2812
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currentBlending = LINEARBLEND;
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FastLED.setBrightness(max_bright);
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set_max_power_in_volts_and_milliamps(5, 500); // FastLED Power management set at 5V, 500mA.
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} // setup()
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void loop () {
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ChangeMe(); // Check the demo loop for changes to the variables.
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EVERY_N_MILLISECONDS(100) {
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uint8_t maxChanges = 24;
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nblendPaletteTowardPalette(currentPalette, targetPalette, maxChanges); // AWESOME palette blending capability.
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}
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EVERY_N_MILLISECONDS(thisdelay) { // FastLED based non-blocking delay to update/display the sequence.
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twinkle();
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}
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EVERY_N_SECONDS(5) { // Change the target palette to a random one every 5 seconds.
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static uint8_t baseC = random8(); // You can use this as a baseline colour if you want similar hues in the next line.
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targetPalette = CRGBPalette16(CHSV(random8(), 255, random8(128,255)), CHSV(random8(), 255, random8(128,255)), CHSV(random8(), 192, random8(128,255)), CHSV(random8(), 255, random8(128,255)));
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}
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FastLED.show();
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Serial.println(LEDS.getFPS()); // Display frames per second on the serial monitor.
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} // loop()
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void twinkle() {
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if (random8() < twinkrate) leds[random16(NUM_LEDS)] += ColorFromPalette(currentPalette, (randhue ? random8() : thishue), 255, currentBlending);
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fadeToBlackBy(leds, NUM_LEDS, thisfade);
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} // twinkle()
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void ChangeMe() { // A time (rather than loop) based demo sequencer. This gives us full control over the length of each sequence.
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uint8_t secondHand = (millis() / 1000) % 10; // IMPORTANT!!! Change '15' to a different value to change duration of the loop.
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static uint8_t lastSecond = 99; // Static variable, means it's only defined once. This is our 'debounce' variable.
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if (lastSecond != secondHand) { // Debounce to make sure we're not repeating an assignment.
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lastSecond = secondHand;
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switch(secondHand) {
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case 0: thisdelay = 10; randhue = 1; thissat=255; thisfade=8; twinkrate=150; break; // You can change values here, one at a time , or altogether.
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case 5: thisdelay = 100; randhue = 0; thishue=random8(); thisfade=2; twinkrate=20; break;
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case 10: break;
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}
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}
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} // ChangeMe()
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