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Sequence a performance using timecode HH,MM,SS.SSS
#include "FastLED.h"
// This sketch shows how to sequence a performance using HH,MM,SS.SSS timecode.
//
// A "ResetPerformance" method is provided so that the performance can be
// restarted from a custom external trigger, e.g., a button or event.
// For demonstration purposes, this Performance is reset if the
// sketch receives a letter "r" on the serial port.
//
// -Mark Kriegsman, January 2015
#if FASTLED_VERSION < 3001000
#error "Requires FastLED 3.1 or later; check github for latest code."
#endif
#define DATA_PIN 3
//#define CLK_PIN 4
#define LED_TYPE WS2811
#define COLOR_ORDER GRB
#define NUM_LEDS 64
CRGB leds[NUM_LEDS];
#define BRIGHTNESS 96
#define FRAMES_PER_SECOND 120
void setup() {
delay(3000); // 3 second delay for recovery
// tell FastLED about the LED strip configuration
FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
//FastLED.addLeds<LED_TYPE,DATA_PIN,CLK_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
// set master brightness control
FastLED.setBrightness(BRIGHTNESS);
RestartPerformance();
Serial.begin(57600);
}
uint8_t gHue = 0; // rotating "base color" used by many of the patterns
uint32_t gTimeCodeBase = 0;
uint32_t gTimeCode = 0;
uint32_t gLastTimeCodeDoneAt = 0;
uint32_t gLastTimeCodeDoneFrom = 0;
#define TC(HOURS,MINUTES,SECONDS) \
((uint32_t)(((uint32_t)((HOURS)*(uint32_t)(3600000))) + \
((uint32_t)((MINUTES)*(uint32_t)(60000))) + \
((uint32_t)((SECONDS)*(uint32_t)(1000)))))
#define AT(HOURS,MINUTES,SECONDS) if( atTC(TC(HOURS,MINUTES,SECONDS)) )
#define FROM(HOURS,MINUTES,SECONDS) if( fromTC(TC(HOURS,MINUTES,SECONDS)) )
static bool atTC( uint32_t tc)
{
bool maybe = false;
if( gTimeCode >= tc) {
if( gLastTimeCodeDoneAt < tc) {
maybe = true;
gLastTimeCodeDoneAt = tc;
}
}
return maybe;
}
static bool fromTC( uint32_t tc)
{
bool maybe = false;
if( gTimeCode >= tc) {
if( gLastTimeCodeDoneFrom <= tc) {
maybe = true;
gLastTimeCodeDoneFrom = tc;
}
}
return maybe;
}
// There are two kinds of things you can put into this performance:
// "FROM" and "AT".
//
// * "FROM" means starting FROM this time AND CALLING IT REPEATEDLY
// until the next "FROM" time comes.
//
// * "AT" means do this ONE TIME ONLY "AT" the designated time.
//
// At least one of the FROM clauses will ALWAYS be executed.
// In the transitional times, TWO pieces of code will be executed back to back.
// For example, if one piece says "FROM(0,0,1.000) {DrawRed()}" and another says
// "FROM(0,0,2.000) {flashblue();}", what you'll get is this:
// 00:00:01.950 -> calls DrawRed
// 00:00:01.975 -> calls DrawRed
// 00:00:02.000 -> calls DrawRed AND calls DrawBlue !
// 00:00:02.025 -> calls DrawBlue
// 00:00:02.050 -> calls DrawBlue
// In most cases, this probably isn't significant in practice, but it's important
// to note. It could be avoided by listing the sequence steps in reverse
// chronological order, but that makes it hard to read.
void Performance()
{
AT(0,0,00.001) { FastLED.setBrightness(BRIGHTNESS); }
FROM(0,0,00.100) { confetti(); }
FROM(0,0,01.500) { juggle(); }
FROM(0,0,03.375) { rainbowWithGlitter(); }
FROM(0,0,04.333) { bpm(); }
FROM(0,0,06.666) { juggle(); }
FROM(0,0,08.750) { confetti(); }
AT(0,0,11.000) { gHue = HUE_PINK; }
AT(0,0,12.000) { fill_solid(leds, NUM_LEDS, CRGB::Red); }
AT(0,0,15.000) { fill_solid(leds, NUM_LEDS, CRGB::Blue); }
FROM(0,0,16.500) { fadeToBlack(); }
FROM(0,0,18.000) { applause(); }
AT(0,0,19.000) { FastLED.setBrightness(BRIGHTNESS/2); }
AT(0,0,20.000) { FastLED.setBrightness(BRIGHTNESS/4); }
AT(0,0,21.000) { FastLED.setBrightness(BRIGHTNESS/8); }
AT(0,0,22.000) { FastLED.setBrightness(BRIGHTNESS/16); }
FROM(0,0,23.000) { fadeToBlack(); }
}
void loop()
{
// Set the current timecode, based on when the performance started
gTimeCode = millis() - gTimeCodeBase;
Performance();
// send the 'leds' array out to the actual LED strip
FastLED.show();
// insert a delay to keep the framerate modest
FastLED.delay(1000/FRAMES_PER_SECOND);
// For demo purposes, restart the performance any time we read
// the letter "r" character from the serial port. Type "r" into
// the Arduino serial monitor and press return to restart the performance.
// In practice, you could have this check a 'restart' button, or something similar.
if( Serial.read() == 'r') RestartPerformance();
// do some periodic updates
EVERY_N_MILLISECONDS( 20 ) { gHue++; } // slowly cycle the "base color" through the rainbow
}
void RestartPerformance()
{
gLastTimeCodeDoneAt = 0;
gLastTimeCodeDoneFrom = 0;
gTimeCodeBase = millis();
}
void rainbow()
{
// FastLED's built-in rainbow generator
fill_rainbow( leds, NUM_LEDS, gHue, 7);
}
void rainbowWithGlitter()
{
// built-in FastLED rainbow, plus some random sparkly glitter
rainbow();
addGlitter(80);
}
void addGlitter( fract8 chanceOfGlitter)
{
if( random8() < chanceOfGlitter) {
leds[ random16(NUM_LEDS) ] += CRGB::White;
}
}
void confetti()
{
// random colored speckles that blink in and fade smoothly
fadeToBlackBy( leds, NUM_LEDS, 10);
int pos = random16(NUM_LEDS);
leds[pos] += CHSV( gHue + random8(64), 200, 255);
}
void bpm()
{
// colored stripes pulsing at a defined Beats-Per-Minute (BPM)
uint8_t BeatsPerMinute = 62;
CRGBPalette16 palette = PartyColors_p;
uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
for( int i = 0; i < NUM_LEDS; i++) { //9948
leds[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));
}
}
void juggle() {
// eight colored dots, weaving in and out of sync with each other
fadeToBlackBy( leds, NUM_LEDS, 20);
byte dothue = 0;
for( int i = 0; i < 8; i++) {
leds[beatsin16(i+7,0,NUM_LEDS)] |= CHSV(dothue, 200, 255);
dothue += 32;
}
}
// An animation to play while the crowd goes wild after the big performance
void applause()
{
static uint16_t lastPixel = 0;
fadeToBlackBy( leds, NUM_LEDS, 32);
leds[lastPixel] = CHSV(random8(HUE_BLUE,HUE_PURPLE),255,255);
lastPixel = random16(NUM_LEDS);
leds[lastPixel] = CRGB::White;
}
// An "animation" to just fade to black. Useful as the last track
// in a non-looping performance.
void fadeToBlack()
{
fadeToBlackBy( leds, NUM_LEDS, 1);
}
@mwoodham

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@mwoodham mwoodham commented Feb 11, 2019

This is great! Exactly what I need.. although it only worked after I removed the line:

FROM(0,0,03.375) { rainbowWithGlitter(); }

However I can't figure out how to make it loop automatically?

Adding this line at the end of the performance list makes the performance hang and restart after a few seconds:

AT(0,0,26.000) { RestartPerformance(); }

Is this not the correct way to make the performance loop? Please let me know if I'm doing something wrong.

Thank you!

@mwoodham

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@mwoodham mwoodham commented Feb 11, 2019

Okay weirdly that method works when I remove the juggle(); animations from the performance.. any idea what might be happening?

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