David Rhodes / LPC1114_Neopixel

Library and demo using the WS2812-based Neopixel strip connected to an LPC114

Dependencies:   mbed

Fork of LEDTape_WS2812 by Suga koubou

Details here: http://mbed.org/users/rhodes42/notebook/tiny-neopixel-controller-with-lpc1114/

Diff: LEDStripFunctions.cpp

Revision:
3:743570d993aa
Parent:
2:61abc599f31f
--- a/LEDStripFunctions.cpp	Mon Mar 24 10:00:54 2014 +0000
+++ b/LEDStripFunctions.cpp	Tue Apr 08 20:56:03 2014 +0000
@@ -51,4 +51,27 @@
     {
         if ((i >= start) && ((i - start) % mod == 0)) buffer[i] = color;   
     }   
+}
+
+
+void scaleBrightness(uint32_t *buffer, int divider, int n)
+{
+    int i, r, g, b;
+    for (i = 0; i < n; i++)
+    {
+        r = (buffer[i] >> 16) & 0xff;
+        g = (buffer[i] >> 8 ) & 0xff;
+        b = (buffer[i]      ) & 0xff;
+        r /= divider;
+        g /= divider;
+        b /= divider;
+        buffer[i] = (r << 16) | (g << 8) | (b);
+    } 
+}
+
+void setPixelRGB(int pixel, int r, int g, int b)
+{
+       
+    int pix = (r << 16) | (g << 8) | (b);
+    tapeSet(pixel, pix);
 }
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