Out of specification timing but it works
Dependencies: WS2812 PixelArray
Diff: main.cpp
- Revision:
- 0:6b847e039b3b
- Child:
- 1:bf4d674d3692
diff -r 000000000000 -r 6b847e039b3b main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Aug 06 09:34:24 2014 +0000 @@ -0,0 +1,43 @@ +#include "mbed.h" +#include "WS2812.h" +#include "PixelArray.h" + +#define WS2812_BUF 60 + +WS2812 ws(p5,WS2812_BUF); +PixelArray px(WS2812_BUF); + +int main() +{ + + ws.useII(2); // use per-pixel intensity scaling + + // set up the colours we want to draw with + int colorbuf[6] = {0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f}; + + while(1) { + + // h is the starting point, incrementing makes the rendered buffer rotate + for (int h=0; h<60; h++) { + + // for each of the colours (j) write out 10 of them + // the pixel get written at the rotation offset, plus the colour*10, plus the colour position + // all modulus 60 so it wraps around + for (int i =0; i<6; i++) { + for (int j=0; j<10; j++) { + px.Set((h+(i*10)+j)%60,colorbuf[i]); + } + } + + // now all the colours are computed, add a fade effect + // compute and write the II value for each pixel + for (int j=0; j<60; j++) { + // px.SetI(pixel position, II value) + px.SetI( (h+j)%60, 0xf+(0xf*(j%10))); + } + + ws.write(px.getBuf()); // write out the buffer + wait(0.05); + } + } +}