red color

Digispark_Test.ino

@@ -52,21 +52,22 @@ double hue = 0.0;
 
  // the loop routine runs over and over again forever:
  void loop() {
-    
+    static double power = 1.5;
+    static double fac = 0.5/pow(0.5,power); 
    for(int i=0;i<NUMPIXELS;i++){
     int r,g,b;
     int hueOffset = (abs(CENTER-i)/(float)CENTER) * 150;
     double h = (hue + hueOffset)/360.,y;
     if(h>1) h -= (int)h;
     if(h<=0.5)
-      y = pow(h,2)*2;
+      y = pow(h,power)*fac;
     else 
-      y = 1-pow(1-h,2)*2;
+      y = 1-pow(1-h,power)*fac;
 
     HSVtoRGB(y*360, 100, 15,r,g,b);   
     pixels.setPixelColor(i, pixels.Color(r,g,b)); // Moderately bright green color.
    }
-   hue -= 0.25;
+   hue -= 0.2;
    if(hue>=360) {
     hue -= 360;
    }