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Dependencies: PixelArray WS2812 mbed
Revision 0:2024cf2d17f8, committed 2016-09-07
- Comitter:
- yu10078999
- Date:
- Wed Sep 07 14:20:53 2016 +0000
- Commit message:
- 0
Changed in this revision
diff -r 000000000000 -r 2024cf2d17f8 PixelArray.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PixelArray.lib Wed Sep 07 14:20:53 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/chris/code/PixelArray/#b45a70faaa83
diff -r 000000000000 -r 2024cf2d17f8 WS2812.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WS2812.lib Wed Sep 07 14:20:53 2016 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/bridadan/code/WS2812/#6e647820f587
diff -r 000000000000 -r 2024cf2d17f8 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Sep 07 14:20:53 2016 +0000 @@ -0,0 +1,47 @@ +#include "mbed.h" +#include "WS2812.h" +#include "PixelArray.h" + +#define WS2812_BUF 150 +#define NUM_COLORS 6 +#define NUM_LEDS_PER_COLOR 3 + +PixelArray px(WS2812_BUF); + +// See the program page for information on the timing numbers +// The given numbers are for the K64F +WS2812 ws(D9, WS2812_BUF, 10, 15, 20, 25); +//WS2812 ws(D9, WS2812_BUF, 10, 15, 20, 35); +int main() +{ + + ws.useII(WS2812::PER_PIXEL); // use per-pixel intensity scaling + + // set up the colours we want to draw with + int colorbuf[NUM_COLORS] = {0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f}; + + // for each of the colours (j) write out 10 of them + // the pixels are written at the colour*10, plus the colour position + // all modulus 60 so it wraps around + for (int i = 0; i < WS2812_BUF; i++) { + px.Set(i, colorbuf[(i / NUM_LEDS_PER_COLOR) % NUM_COLORS]); + } + + // now all the colours are computed, add a fade effect using intensity scaling + // compute and write the II value for each pixel + for (int j=0; j<WS2812_BUF; j++) { + // px.SetI(pixel position, II value) + px.SetI(j%WS2812_BUF, 0xf+(0xf*(j%NUM_LEDS_PER_COLOR))); + } + + + // Now the buffer is written, rotate it + // by writing it out with an increasing offset + while (1) { + for (int z=WS2812_BUF; z >= 0 ; z--) { + ws.write_offsets(px.getBuf(),z,z,z); + wait(0.075); + } + } + +}
diff -r 000000000000 -r 2024cf2d17f8 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Sep 07 14:20:53 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/2e9cc70d1897 \ No newline at end of file