led anination proportional to speed

hoverserial.ino

@@ -294,9 +294,12 @@ void loop()
 
   if (iTimeSend > timeNow)
     return;
-  iTimeSend = timeNow + TIME_SEND;
+  if (cmd2 == 0)
+    return;
+  iTimeSend = timeNow + ((200 - abs(cmd2)) * 2);  // TIME_SEND
   strip.clear();
   strip.setPixelColor(idx_led, strip.Color(128, 0, 0));
+  if (cmd2 > 0){
       if (idx_led < strip.numPixels() -1 )
       {
         idx_led++;
@@ -305,5 +308,17 @@ void loop()
       {
         idx_led = 0;
       }
+  }
+  else
+  {
+     if (idx_led > 0 )
+      {
+        idx_led--;
+      }
+      else
+      {
+        idx_led = strip.numPixels() -1 ;
+      }
+  }
       strip.show();
 }