diff --git a/src/wsLED.cpp b/src/wsLED.cpp
index 9b6de9f..5fb2bdc 100644
--- a/src/wsLED.cpp
+++ b/src/wsLED.cpp
@@ -3,13 +3,10 @@
 #if defined(ARDUINO_ARCH_ESP32)
 //# include "esp_task.h"
 // https://github.com/JSchaenzle/ESP32-NeoPixel-WS2812-RMT/blob/master/ws2812_control.c
-#  include <driver/rmt.h>
 #  include <set>
 #  ifndef LED_RMT_TX_CHANNEL
 #    define LED_RMT_TX_CHANNEL RMT_CHANNEL_0
 #  endif
-#  define BITS_PER_LED_CMD 24
-#  define LED_BUFFER_ITEMS ((1 * BITS_PER_LED_CMD))
 // These values are determined by measuring pulse timing with logic analyzer and adjusting to match datasheet.
 #  define T0H 14  // 0 bit high time
 #  define T1H 52  // 1 bit high time
@@ -49,17 +46,16 @@ void wsLED::show(void)
         color[i] = (uint8_t)(c >> 8);
     }
 #if defined(ARDUINO_ARCH_ESP32)
-    rmt_item32_t led_data_buffer[LED_BUFFER_ITEMS];
-
     uint32_t bits_to_send = ((uint32_t)color[0] << 16) | ((uint32_t)color[1] << 8) | (uint32_t)color[2];
     uint32_t mask = 1 << (BITS_PER_LED_CMD - 1);
     for (uint32_t bit = 0; bit < BITS_PER_LED_CMD; bit++) {
         uint32_t bit_is_set = bits_to_send & mask;
-led_data_buffer[bit] = bit_is_set ? (rmt_item32_t) {{{T1H, 1, TL, 0}}} : (rmt_item32_t) {{{T0H, 1, TL, 0}}};
+
+        led_data_buffer[bit] = bit_is_set ? (rmt_item32_t) {{{T1H, 1, TL, 0}}} : (rmt_item32_t) {{{T0H, 1, TL, 0}}};
         mask >>= 1;
     }
     ESP_ERROR_CHECK(rmt_write_items(LED_RMT_TX_CHANNEL, led_data_buffer, LED_BUFFER_ITEMS, false));
-    ESP_ERROR_CHECK(rmt_wait_tx_done(LED_RMT_TX_CHANNEL, portMAX_DELAY));
+//    ESP_ERROR_CHECK(rmt_wait_tx_done(LED_RMT_TX_CHANNEL, portMAX_DELAY));
 #else
     noInterrupts();
     send_pixels_800(color, 1, _pin);
@@ -122,6 +118,7 @@ void wsLED::setColor(LEDRGB color)
 
 void ICACHE_RAM_ATTR wsLED::rtLed(void)
 {
+    uint32_t timing;
 
     _handler.detach();
     switch (_ledState) {
@@ -132,7 +129,7 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
             setColor(_color1);
         }
         _subState = !_subState;
-        _handler.attach_ms(_blinkSpeed, ledTrampoline, this);
+        timing = _blinkSpeed;
         break;
 
 
@@ -142,8 +139,11 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
         uint16_t val = pgm_read_word(&LB[_subState]);
         _scale = (uint8_t)val;
         val >>= 8;
-        uint32_t timing = 30ul * val;
-        _handler.attach_ms(timing, ledTrampoline, this);
+        timing = 30ul * val;
+        if (timing < 30) {
+            timing = 30;
+        }
+        timing = 30;
         break;
     }
 
@@ -151,20 +151,22 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
         _ledState = _savedState;
         _subState = 0;
         setColor(_color1);
-        _handler.attach_ms(5, ledTrampoline, this); // co nejrychleji do predchoziho stavu
+        timing = 5;
         break;
     }
 
     case LED_PULSE_START:
         setColor(_pulseColor);
         _ledState = LED_PULSE;
-        _handler.attach_ms(_pulseDuration, ledTrampoline, this);
+        timing = _pulseDuration;
         break;
 
     default:
+        timing = 5000;
         break;
     }
     show();
+    _handler.attach_ms(timing, ledTrampoline, this);
 }
 
 void wsLED::setColors(LEDRGB color1, LEDRGB color2)
@@ -219,7 +221,7 @@ void wsLED::pulse(LEDRGB color, uint32_t duration)
         _handler.detach();
         _scale = 0xff;
         _pulseColor = color;
-        if (LED_PULSE != _ledState) {
+        if (LED_BREATH == _ledState || LED_BLINK == _ledState) {
             _savedState = _ledState;
         }
         _pulseDuration = duration;
diff --git a/src/wsLED.h b/src/wsLED.h
index 9070d3d..a203e52 100644
--- a/src/wsLED.h
+++ b/src/wsLED.h
@@ -23,6 +23,11 @@ See more at http://www.xpablo.cz
 #define __WSLED_H__
 #include <Arduino.h>
 #include <Ticker.h>
+#if defined(ARDUINO_ARCH_ESP32)
+#  include <driver/rmt.h>
+#  define BITS_PER_LED_CMD 24
+#  define LED_BUFFER_ITEMS ((1 * BITS_PER_LED_CMD))
+#endif
 
 struct LEDRGB {
     union {
@@ -140,6 +145,7 @@ protected:
     LEDRGB _pulseColor;
 #if defined(ARDUINO_ARCH_ESP32)
     int _rmtChannel;
+    rmt_item32_t led_data_buffer[LED_BUFFER_ITEMS];
 #endif
 
     void show(void);