diff --git a/60LED_WS2812B_NTP_Clock.ino b/60LED_WS2812B_NTP_Clock.ino
index 9c471a7..b2467fe 100644
--- a/60LED_WS2812B_NTP_Clock.ino
+++ b/60LED_WS2812B_NTP_Clock.ino
@@ -44,7 +44,8 @@ RgbwColor temp;
 #define MINIMAL_BRIGHTNESS 20
 #define LDR_SCALE 16
 #define colorSaturation 192
-NeoPixelBrightnessBus<NeoGrbFeature, Neo800KbpsMethod> strip(NUM_LEDS, DATA_PIN);
+//NeoPixelBrightnessBus<NeoGrbFeature, Neo800KbpsMethod> strip(NUM_LEDS, DATA_PIN);
+NeoPixelBrightnessBus<NeoGrbFeature, NeoEsp32I2s1800KbpsMethod> strip(NUM_LEDS, DATA_PIN);
 RgbColor red(colorSaturation, 0, 0);
 RgbColor green(0, colorSaturation, 0);
 RgbColor blue(0, 0, colorSaturation);
@@ -239,7 +240,7 @@ void syncNTP() {
 }
 
 void setup() {
-  //interrupt for one second@80Mhz!
+  //interrupt for one second
   timer = timerBegin(0, 80, true);
   timerAttachInterrupt(timer, &onTimer, true);
   timerAlarmWrite(timer, 1000000, true);
@@ -250,9 +251,9 @@ void setup() {
 
   Serial.begin(SERIAL_BAUD);
   Serial.flush();
-  Serial.print("CPU Frequency is: ");
+  Serial.print("\nCPU Frequency is: ");
   Serial.print(getCpuFrequencyMhz()); //Get CPU clock
-  Serial.print(" Mhz");
+  Serial.println(" Mhz");
 
   strip.Begin();
   strip.SetBrightness( MINIMAL_BRIGHTNESS );
@@ -276,8 +277,10 @@ void loop()
 {
   // -- doLoop should be called as frequently as possible.
   iotWebConf.doLoop();
-  while (Serial.available())
+  /*
+    while (Serial.available())
     Serial.read();
+  */
   if (!setupDone && interruptCounter > 0) {
     if (currentSec < 0) {
       currentSec = 59;
@@ -293,9 +296,7 @@ void loop()
     currentSec--;
     portEXIT_CRITICAL(&timerMux);
   }
-
-  while (setupDone && interruptCounter > 0) {
-
+  if (setupDone && interruptCounter > 0) {
     //brigthness measurement
     ldrValue = (ldrValue + analogRead(LDR_PIN));
     //Serial.println(ldrValue);