diff --git a/src/wsLED.cpp b/src/wsLED.cpp
index fab08c4..3d8df94 100644
--- a/src/wsLED.cpp
+++ b/src/wsLED.cpp
@@ -74,33 +74,51 @@ wsLED::wsLED(int pin, int order)
 
     _pin = pin;
     _order = order;
+    _ledState = LED_STOP;
+}
+
+wsLED::wsLED(void)
+{
+
+    _pin = NOT_A_PIN;
+    _order = RGB;
+    _ledState = LED_STOP;
+}
+
+void wsLED::begin(int pin)
+{
+
+    _pin = pin;
+    begin();
 }
 
 void wsLED::begin(void)
 {
 
+    if (NOT_A_PIN != _pin) {
 #if defined(ARDUINO_ARCH_ESP8266)
-    pinMode(_pin, OUTPUT);
+        pinMode(_pin, OUTPUT);
 #endif
 #if defined(ARDUINO_ARCH_ESP32)
 // TODO: mozna nejak zkusit najit volny RMT kanal?
-    rmt_config_t config;
+        rmt_config_t config;
 
-    config.rmt_mode = RMT_MODE_TX;
-    config.channel = LED_RMT_TX_CHANNEL;
-    config.gpio_num = (gpio_num_t)_pin;
-    config.mem_block_num = 3;
-    config.tx_config.loop_en = false;
-    config.tx_config.carrier_en = false;
-    config.tx_config.idle_output_en = true;
-    config.tx_config.idle_level = RMT_IDLE_LEVEL_LOW;
-    config.clk_div = 2;
+        config.rmt_mode = RMT_MODE_TX;
+        config.channel = LED_RMT_TX_CHANNEL;
+        config.gpio_num = (gpio_num_t)_pin;
+        config.mem_block_num = 3;
+        config.tx_config.loop_en = false;
+        config.tx_config.carrier_en = false;
+        config.tx_config.idle_output_en = true;
+        config.tx_config.idle_level = RMT_IDLE_LEVEL_LOW;
+        config.clk_div = 2;
 
-    ESP_ERROR_CHECK(rmt_config(&config));
-    ESP_ERROR_CHECK(rmt_driver_install(config.channel, 0, 0));
+        ESP_ERROR_CHECK(rmt_config(&config));
+        ESP_ERROR_CHECK(rmt_driver_install(config.channel, 0, 0));
 #endif
-    _color[0] = _color[1] = _color[2] = 0;
-    show();
+        _color[0] = _color[1] = _color[2] = 0;
+        show();
+    }
 }
 
 void wsLED::setColor(LEDRGB &color)
@@ -116,7 +134,6 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
 
     switch (_ledState) {
     case LED_BLINK:
-        _scale = 0xff;
         if (_subState) {
             _subState = 0;
             setColor(_color2);
@@ -139,6 +156,13 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
         break;
     }
 
+    case LED_PULSE: {
+        _ledState = _savedState;
+        _handler.attach_ms(300, lh, this); // vratime zpet puvodni casovani
+        setColor(_color1);
+        break;
+    }
+
     default:
         _handler.attach_ms(300, lh, this); // jen pomale casovani
         break;
@@ -157,25 +181,37 @@ void wsLED::setColors(LEDRGB color1, LEDRGB color2)
 
     _color1 = color1;
     _color2 = color2;
+    if (LED_BREATH == _ledState) {
+        setColor(_color1);
+    }
 }
 
 void wsLED::blink(int speed)
 {
 
-    _handler.detach();
-    _ledState = LED_BLINK;
-    _subState = 1;
-    _handler.attach_ms(300, lh, this);
+    if (NOT_A_PIN != _pin) {
+        if (LED_BLINK != _ledState) {
+            _handler.detach();
+            _ledState = LED_BLINK;
+            _scale = 0xff;
+            _subState = 1;
+            _handler.attach_ms(300, lh, this);
+        }
+    }
 }
 
 void wsLED::breath(void)
 {
 
-    _handler.detach();
-    _ledState = LED_BREATH;
-    _subState = 0;
-    setColor(_color1);
-    _handler.attach_ms(1, lh, this);
+    if (NOT_A_PIN != _pin) {
+        if (LED_BREATH != _ledState) {
+            _handler.detach();
+            _ledState = LED_BREATH;
+            _subState = 0;
+            setColor(_color1);
+            _handler.attach_ms(1, lh, this);
+        }
+    }
 }
 
 void wsLED::setOrder(int neworder)
@@ -184,4 +220,24 @@ void wsLED::setOrder(int neworder)
     _order = neworder;
 }
 
+void wsLED::pulse(LEDRGB color, uint32_t duration)
+{
 
+    if (NOT_A_PIN != _pin) {
+        _handler.detach();
+        _scale = 0xff;
+        setColor(color);
+        if (LED_PULSE != _ledState) {
+            _savedState = _ledState;
+        }
+        show();
+        _ledState = LED_PULSE;
+        _handler.attach_ms(duration, lh, this);
+    }
+}
+
+ledstate_t wsLED::getState(void)
+{
+
+    return _ledState;
+}
diff --git a/src/wsLED.h b/src/wsLED.h
index 781db78..433e474 100644
--- a/src/wsLED.h
+++ b/src/wsLED.h
@@ -113,6 +113,14 @@ enum ColorOrder {
     GRB = 0102
 };
 
+typedef enum {
+    LED_STOP = 0,
+    LED_BLINK,
+    LED_BREATH,
+    LED_PULSE,
+    LED_PATTERN,
+}ledstate_t;
+
 class wsLED
 {
 protected:
@@ -124,12 +132,8 @@ protected:
     uint8_t _scale;
     uint8_t _color[3];
     Ticker _handler;
-    enum {
-        LED_STOP = 0,
-        LED_BLINK,
-        LED_BREATH,
-        LED_PATTERN,
-    } _ledState; // stav LEDky (blika, dycha, ...)
+    ledstate_t _ledState; // stav LEDky (blika, dycha, ...)
+    ledstate_t _savedState; // stav pro navrat
     int _subState; // pomocny stav/index v poli dychani
 #if defined(ARDUINO_ARCH_ESP32)
     int _rmtChannel;
@@ -144,13 +148,17 @@ protected:
 
 public:
     wsLED(int pin, int order = RGB);
+    wsLED(void);
     void begin(void);
+    void begin(int pin);
     static void lh(wsLED *ptr);
     void rtLed(void); // vykonna metoda
     void setColors(LEDRGB color1, LEDRGB color2 = LEDRGB(0, 0, 0));
     void blink(int speed = 300);
     void breath(void);
     void setOrder(int neworder);
+    ledstate_t getState(void);
+    void pulse(LEDRGB color, uint32_t duration);
 };
 
 #endif