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@chemdoc77
Created October 11, 2019 00:19
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Meteor Shower
/*
* Meteor Shower posted by Chemdoc77
* Based on the outstanding MeteorShower sketch by Jon Burroughs as seen in Adam bluebottleyellowboxyellyfish’s clock
* which Chemdoc77 slightly modified.
*/
#include <FastLED.h>
#define LED_PIN 6
#define CHIPSET NEOPIXEL
#define NUM_LEDS 90
#define BRIGHTNESS 100
CRGB leds[NUM_LEDS];
byte ledsX[NUM_LEDS][3];
boolean RAINBOWs = false;
boolean RANDOMpick = false;
uint8_t hue;
uint16_t timeframe;
byte idex = 0;
byte colorTIP = 0;
byte meteorLENGTH;
byte loopCount = 1; //low number loop counter
void setup() {
delay(1000); // sanity delay
FastLED.addLeds<CHIPSET, LED_PIN>(leds, NUM_LEDS);
FastLED.setBrightness( BRIGHTNESS );
FastLED.setMaxPowerInVoltsAndMilliamps(5,1500);
set_max_power_indicator_LED(13);
fill_solid(leds, NUM_LEDS, CRGB::Black);
FastLED.show();
}
//============================================
void loop() {
meteorShower();
}
//=============== Functions ==============
void meteorShower(){
//hue master
hue++;
//populate the leds[] with stored ledsX[] array data
for(byte i = 0; i < NUM_LEDS; i++ ) {
ledsX[i][0] = leds[i].r;
ledsX[i][1] = leds[i].g;
ledsX[i][2] = leds[i].b;
}
//clear the previous counter clockwise position
byte iCCW;
//we are keeping track of elapsed time
timeframe++; //fx timer
//meteorLENGTH fx is only shown for this time frame
if((timeframe >= 1) && (timeframe <= 280)) { meteorLENGTH = 29; }
if((timeframe > 280) && (timeframe <= 500)) { meteorLENGTH = 45; }
//RAINBOWs fx add rainbow tails during this time frame only
if((timeframe > 0) && (timeframe <= 280)) { RAINBOWs = true; }
else{ RAINBOWs = false; }
//keep our RAINBOWs within a specific range of hue
if(RAINBOWs == true){ hue = hue - 20; if(hue <= 0){ hue = 1; } }
//RANDOMpick fx is only enabled during this timeframe
if((timeframe > 600) && (timeframe <= 790)) { RANDOMpick = true; }
else{ RANDOMpick = false; }
//pick a random spot in the meteor switch case statement below
if (RANDOMpick == true){ idex = random8(46); }
else{
//increment the meteor display frame
idex++;
//make sure we don't drift into space
if (idex > meteorLENGTH) { idex = 0; } }
//meteorLENGTH is randomized during this timeframe only
if((timeframe > 790) && (timeframe <= 1090)) { meteorLENGTH = random8(7, 38); }
//during this point in the animation timeframe
if(timeframe == 1180) {
//reset the timeframe
timeframe = 0;
//increment the loop counter
loopCount++;
}
//during this part of the loopCount, all meteors have a white colored tip
if(loopCount == 1) { colorTIP = 0; }
if(loopCount == 2) { colorTIP = 1; }
if(loopCount == 3) { colorTIP = random8(11); }
//end of the desired fx, reset the variable for the next time around
if(loopCount == 4) {
colorTIP = 0;
loopCount = 0;
}
//there are two switch case statements nestled into one another
//we always want to control the color of the meteor tip
//the other controls the actual meteor animation in 45 frames/case statements
switch (idex) {
case 0:
switch (colorTIP){
case 0:
leds[0] = CHSV(hue, 255, 255);
break;
case 1:
leds[0] = CRGB(100,100,100);
break;
case 2:
leds[0] = CRGB::Yellow;
break;
case 3:
leds[0] = CRGB::Violet;
break;
case 4:
leds[0] = CRGB::Green;
break;
case 5:
leds[0] = CRGB::Purple;
break;
case 6:
leds[0] = CRGB::Orange;
break;
case 7:
leds[0] = CRGB::Cyan;
break;
case 8:
leds[0] = CRGB::GreenYellow;
break;
case 9:
leds[0] = CRGB::Magenta;
break;
case 10:
leds[0] = CRGB::SkyBlue;
}
break;
case 1:
leds[0] = CHSV((hue - 20), 255, 210);
break;
case 2:
leds[0] = CHSV((hue - 22), 255, 180);
break;
case 3:
leds[0] = CHSV((hue - 23), 255, 150);
break;
case 4:
leds[0] = CHSV((hue - 24), 255, 110);
break;
case 5:
leds[0] = CHSV((hue - 25), 255, 90);
break;
case 6:
leds[0] = CHSV((hue - 26), 160, 60);
break;
case 7:
leds[0] = CHSV((hue - 27), 140, 40);
break;
case 8:
leds[0] = CHSV((hue - 28), 120, 20);
break;
case 9:
leds[0] = CHSV((hue - 29), 100, 20);
break;
case 10:
leds[0] = CRGB::Black;
break;
case 11:
leds[0] = CRGB::Black;
break;
case 12:
leds[0] = CRGB::Black;
break;
case 13:
leds[0] = CRGB::Black;
break;
case 14:
leds[0] = CRGB::Black;
break;
case 15:
leds[0] = CRGB::Black;
break;
case 16:
leds[0] = CRGB::Black;
break;
case 17:
leds[0] = CRGB::Black;
break;
case 18:
leds[0] = CRGB::Black;
break;
case 19:
leds[0] = CRGB::Black;
break;
case 20:
leds[0] = CRGB::Black;
break;
case 21:
leds[0] = CRGB::Black;
break;
case 22:
leds[0] = CRGB::Black;
break;
case 23:
leds[0] = CRGB::Black;
break;
case 24:
leds[0] = CRGB::Black;
break;
case 25:
leds[0] = CRGB::Black;
break;
case 26:
leds[0] = CRGB::Black;
break;
case 27:
leds[0] = CRGB::Black;
break;
case 28:
leds[0] = CRGB::Black;
break;
case 29:
leds[0] = CRGB::Black;
break;
case 30:
leds[0] = CRGB::Black;
break;
case 31:
leds[0] = CRGB::Black;
break;
case 32:
leds[0] = CRGB::Black;
break;
case 33:
leds[0] = CRGB::Black;
break;
case 34:
leds[0] = CRGB::Black;
break;
case 35:
leds[0] = CRGB::Black;
break;
case 36:
leds[0] = CRGB::Black;
break;
case 37:
leds[0] = CRGB::Black;
break;
case 38:
leds[0] = CRGB::Black;
break;
case 39:
leds[0] = CRGB::Black;
break;
case 40:
leds[0] = CRGB::Black;
break;
case 41:
leds[0] = CRGB::Black;
break;
case 42:
leds[0] = CRGB::Black;
break;
case 43:
leds[0] = CRGB::Black;
break;
case 44:
leds[0] = CRGB::Black;
break;
case 45:
leds[0] = CRGB::Black;
break;
}
//copy the LED Array
for(byte i = 1; i < NUM_LEDS; i++ ) {
iCCW = adjacent_ccw(i);
leds[i].r = ledsX[iCCW][0];
leds[i].g = ledsX[iCCW][1];
leds[i].b = ledsX[iCCW][2];
}
//show the blinky
FastLED.show();
//control the animation speed/frame rate
delay(30);
}
//find the adjacent counter clockwise postion of the led
//funkboxing code snippet
byte adjacent_ccw(byte i) {
byte r;
if (i > 0) { r = i - 1; }
else { r = NUM_LEDS - 1; }
return r;
}
@camperLou
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Found this code to be incredible...and changed to match esp32 using wifi. Would like to change the direction 180 so that the leds begin their travel from the "end" of the strip as compared to the current led[0] position. I have tried tweaking LINE:85 (byte i = 0; i < NUM_LEDS; i++ ) with for (int i = (NUM_LEDS - 1); i >= 0; i--) with no success. Can yo help...thanks!

Louis Hall

@chemdoc77
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chemdoc77 commented Jul 18, 2024 via email

@camperLou
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camperLou commented Jul 18, 2024 via email

@camperLou
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camperLou commented Jul 24, 2024 via email

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