A simple test of the WS2812 library on K64F.
Dependencies: PixelArray WS2812 mbed
Fork of WS2812_Example by
Revision 3:a0545942de4f, committed 2017-06-14
- Comitter:
- mochen
- Date:
- Wed Jun 14 01:46:42 2017 +0000
- Parent:
- 2:cb82a3dc4031
- Commit message:
- Simplified colors to make a basic test.
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Thu Feb 12 21:55:24 2015 +0000
+++ b/main.cpp Wed Jun 14 01:46:42 2017 +0000
@@ -2,46 +2,27 @@
#include "WS2812.h"
#include "PixelArray.h"
-#define WS2812_BUF 150
+#define WS2812_BUF 3
#define NUM_COLORS 6
-#define NUM_LEDS_PER_COLOR 10
+#define NUM_LEDS_PER_COLOR 1
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, 0, 5, 5, 0);
+WS2812 ws(D6, WS2812_BUF, 0, 5, 5, 0);
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)));
- }
-
+ px.Set(0, 0);
+ px.Set(1, 0x00ff00);
+ px.Set(2, 0x00ee00);
// 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);
+ ws.write(px.getBuf());
wait(0.075);
- }
}
}
