Hochschule München
/
WS2812_RS
CCC-2016 Lightshow
main.cpp
- Committer:
- HMFK03LST1
- Date:
- 2015-08-17
- Revision:
- 0:33a6b0d61b90
File content as of revision 0:33a6b0d61b90:
#include "mbed.h" #include "WS2812.h" const int size = 300; //number of LED´s int line = 25; //length of Flash DigitalOut myled(LED1); WS2812 strip (p5,size,6,17,9,14); //mbed 4088: 10,24,20,22 see https://developer.mbed.org/users/bridadan/code/WS2812/ //Ticker speed; //Ticker baum; int Buffer[size + 70]; //a buffer is never to big int dir = 1; int spe = 5; int spe_2 = 70; int nd = 1; int run_i = 1; // Short Light {Startposition,Direktion} Startposition must > 10 and < (size-10) int single[5][2]={{9,1},{140,1},{280,1},{120,-1},{260,-1}}; int color_set(uint8_t rot,uint8_t gruen, uint8_t blau, uint8_t alpha) { return ((alpha<<24) + (rot<<16) + (gruen<<8) + blau); } //change speed void do_speed() { spe_2 = spe_2 + dir; if (spe_2 > 180) dir = -1; if (spe_2 < 60) dir = 1; spe = spe_2/20; } void do_single(int num,int c) { Buffer[single[num][0]] = color_set(((c&0x00FF0000)>>16)-nd%30, ((c&0x0000FF00)>>8)+nd%35,(c&0x000000FF)+nd%10,250); double ran = rand()%2; single[num][0] = single[num][0] + ((ran)* single[num][1]); if (single[num][0] > (size-13)) single[num][1]= -1; if (single[num][0] < 8 ) single[num][1] = 1; Buffer[single[num][0]-3] = color_set(0,0,0,0); Buffer[single[num][0]-4] = color_set(0,0,0,0); Buffer[single[num][0]+3] = color_set(0,0,0,0); Buffer[single[num][0]+4] = color_set(0,0,0,0); } void do_baum() { for (int i = size - line; i < size; i++) { Buffer[i] &= color_set(124+spe*12+nd%60,255-spe*27+nd%45,124-spe*13-nd%35,240-nd%200); nd+=12; } } void do_run() { if (run_i < line) { for (int j = 0; j < spe; j++) Buffer[run_i+j] = color_set(spe*20-nd%15,253-spe*20,124-spe*13+nd%25,240); } else { for (int j = 0; j < spe; j++) Buffer[run_i+j] = color_set(spe*27-nd%25,253-spe*27,124-spe*13+nd%55,240); for (int j = 0; j < spe; j++) Buffer[run_i+j-line] = color_set(0,0,0,0); } run_i+=spe; if(run_i > size) run_i = 0; } void show(bool i) { do_single(0,0x00ff0000); do_single(1,0x0006de08); do_single(2,0x000000df); do_single(3,0xdeadbeef); do_single(4,0x00442288); do_baum(); do_speed(); do_run(); if (i>0) for (int a=0; a<size;a++){ Buffer[a]^= 4294967295;}; strip.write(Buffer); } int main() { while(1) { show(0); myled = !myled; } }