Diff: main.cpp

Revision:

0:1f050f0c9bec

Child:

1:194e3cf73e72

diff -r 000000000000 -r 1f050f0c9bec main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Aug 09 06:44:01 2018 +0000
@@ -0,0 +1,42 @@
+#include "mbed.h"
+#include "WS2812.h"
+#include "PixelArray.h"
+
+#define WS2812_BUF 8
+#define NUM_COLORS 8
+#define NUM_LEDS_PER_COLOR 8
+#define H0 8
+#define L0 32
+#define H1 17
+#define L1 32
+
+DigitalOut LEDPower(PE_8, 1);
+PixelArray px(WS2812_BUF);
+WS2812 ws(PB_1, WS2812_BUF, H0, L0, H1, L1);
+
+const int colorbuf[NUM_COLORS] = {0x000000, 0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f, 0x2f2f2f};
+
+// main() runs in its own thread in the OS
+int main()
+{
+    ws.useII(WS2812::PER_PIXEL); // use per-pixel intensity scaling
+
+    // 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]);
+        px.SetI(i, 0x80);
+    }
+
+    int col = 0;
+
+    while (true) {
+        ws.write_offsets(px.getBuf(), col, col, col);
+        col++;
+        if (col >= WS2812_BUF) {
+            col = 0;
+        }
+        wait(0.5);
+    }
+}