diff --git a/src/wsLED.cpp b/src/wsLED.cpp
index 8aae605..339cf24 100644
--- a/src/wsLED.cpp
+++ b/src/wsLED.cpp
@@ -103,7 +103,7 @@ void wsLED::begin(void)
         ESP_ERROR_CHECK(rmt_config(&config));
         ESP_ERROR_CHECK(rmt_driver_install(config.channel, 0, 0));
 
-        _semaphore = xSemaphoreCreateBinary();
+        _mutex = xSemaphoreCreateMutex();
 #endif
         _color[0] = _color[1] = _color[2] = 0;
         show();
@@ -123,7 +123,7 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
     uint32_t timing;
 
 #if defined(ESP32)
-    xSemaphoreTakeFromISR(_semaphore, pdFALSE);
+    xSemaphoreTake(_mutex, portMAX_DELAY);
 #endif
     _handler.detach();
     switch (_ledState) {
@@ -173,7 +173,7 @@ void ICACHE_RAM_ATTR wsLED::rtLed(void)
     show();
     _handler.attach_ms(timing, ledTrampoline, this);
 #if defined(ESP32)
-    xSemaphoreGiveFromISR(_semaphore, pdFALSE);
+    xSemaphoreGive(_mutex);
 #endif
 }
 
@@ -227,7 +227,7 @@ void wsLED::pulse(LEDRGB color, uint32_t duration)
 
     if (NOT_A_PIN != _pin) {
 #if defined(ESP32)
-        xSemaphoreTake(_semaphore, portMAX_DELAY);
+        xSemaphoreTake(_mutex, portMAX_DELAY);
 #endif
         _handler.detach();
         _scale = 0xff;
@@ -239,7 +239,7 @@ void wsLED::pulse(LEDRGB color, uint32_t duration)
         _ledState = LED_PULSE_START;
         _handler.attach_ms(5, ledTrampoline, this);
 #if defined(ESP32)
-        xSemaphoreGive(_semaphore);
+        xSemaphoreGive(_mutex);
 #endif
     }
 }
diff --git a/src/wsLED.h b/src/wsLED.h
index 258e32e..9275aa0 100644
--- a/src/wsLED.h
+++ b/src/wsLED.h
@@ -146,7 +146,7 @@ protected:
 #if defined(ARDUINO_ARCH_ESP32)
     int _rmtChannel;
     rmt_item32_t led_data_buffer[LED_BUFFER_ITEMS];
-    SemaphoreHandle_t _semaphore;
+    SemaphoreHandle_t _mutex;
 #endif
 
     void show(void);