diff --git a/led_bikewheel.ino b/led_bikewheel.ino
index 698d534..3459eff 100644
--- a/led_bikewheel.ino
+++ b/led_bikewheel.ino
@@ -12,7 +12,7 @@ const uint8_t clockPin = 11;
 // Create an object for writing to the LED strip.
 APA102<dataPin, clockPin> ledStrip;
 
-const uint16_t ledCount = 56;
+const uint16_t ledCount = 28;
 const uint8_t brightness = 1;
 const rgb_color RED = rgb_color(255, 0, 0);
 const rgb_color GREEN = rgb_color(0, 255, 0);
@@ -25,7 +25,6 @@ rgb_color colors[ledCount];
 float passed = 0;
 int state = 0;
 
-
 void setup()
 {
   Serial.begin(115200);
@@ -39,6 +38,7 @@ void loop()
   bool change = false;
   while (count < ROUND_COUNT)
   {
+    // check HALL if turned
     if (digitalRead(HALL_PIN) == LOW)
     {
       if (!change)
@@ -52,6 +52,7 @@ void loop()
       change = false;
     }
 
+    // calc led for last turn
     float current_diff = micros() - start;
 
     for (int i = 0; i < state_count; i++)