/*
*This sketch outputs images to persistence of vision led strips
*It uses FastLed to drive APA102 leds, sending colour values from
*arrays held in flash memory (designated by 'const'). You need to
*set the number of slices you have made your image into,
*e.g. bmp image of 60 pixels high by 150 wide
* would give 60 num_leds and
* 150 slices (number of slices you have made your image into)
*/

#include "FastLED.h"

#define NUM_LEDS 60 //number of leds in strip length on one side
#define DATA_PIN 2//7 = second hardware spi data
#define CLOCK_PIN 3//14 = second hardware spi clock
CRGB leds[NUM_LEDS];
int numberOfSlices = 150;

void setup() {

  delay(200);
    FastLED.addLeds<APA102, DATA_PIN, CLOCK_PIN>(leds, NUM_LEDS);
 }

const unsigned int array0[] = {0x80d06, IMAGE ARRAY GOES HERE (generated using Mortonkopf's web tool};//holly
const unsigned int array0[] = {AND HERE....};//snow


void loop() {
PoiSonic(2000,array0); //call method, with duration to show (2sec) and array name.
PoiSonic(2000,array1);
 }


//The magic loop

void PoiSonic(unsigned long time, const unsigned int array[]){
unsigned long currentTime = millis();
 while (millis()< currentTime + (time)) {

int f= numberOfSlices;
int z; //a counter
int j=NUM_LEDS;

    for (int x=0;x<f;x++){
     for(z=NUM_LEDS;z>0;z--){
       leds[z-1]=array[x+((j-z)*f)];}
     FastLED.show();
     delayMicroseconds(40); //may need to increase / decrease depending on spin rate
     }
    delayMicroseconds(1000); //may need to increase / decrease depending on spin rate
   }
 }