diff --git a/src/wsLED.cpp b/src/wsLED.cpp
index 339cf24..9d9f2d7 100644
--- a/src/wsLED.cpp
+++ b/src/wsLED.cpp
@@ -192,12 +192,18 @@ void wsLED::blink(uint32_t speed)
 
     if (NOT_A_PIN != _pin) {
         if (LED_BLINK != _ledState) {
+#if defined(ESP32)
+            xSemaphoreTake(_mutex, portMAX_DELAY);
+#endif
             _handler.detach();
             _ledState = LED_BLINK;
             _scale = 0xff;
             _subState = 1;
             _blinkSpeed = speed;
             _handler.attach_ms(5, ledTrampoline, this);
+#if defined(ESP32)
+            xSemaphoreGive(_mutex);
+#endif
         }
     }
 }
@@ -207,11 +213,17 @@ void wsLED::breath(void)
 
     if (NOT_A_PIN != _pin) {
         if (LED_BREATH != _ledState) {
+#if defined(ESP32)
+            xSemaphoreTake(_mutex, portMAX_DELAY);
+#endif
             _handler.detach();
             _ledState = LED_BREATH;
             _subState = 0;
             setColor(_color1);
             _handler.attach_ms(5, ledTrampoline, this);
+#if defined(ESP32)
+            xSemaphoreGive(_mutex);
+#endif
         }
     }
 }