diff --git a/src/internal/Esp32_i2s.c b/src/internal/Esp32_i2s.c
index 652ddfa..9d65782 100644
--- a/src/internal/Esp32_i2s.c
+++ b/src/internal/Esp32_i2s.c
@@ -45,6 +45,7 @@
 #include "driver/dac.h"
 #include "Esp32_i2s.h"
 #include "esp32-hal.h"
+#include "esp32-hal-log.h"
 
 #if ESP_IDF_VERSION_MAJOR<=4
 #define I2S_BASE_CLK (160000000L)
diff --git a/src/internal/NeoEsp32I2sMethod.h b/src/internal/NeoEsp32I2sMethod.h
index b3b8ee1..5667cf2 100644
--- a/src/internal/NeoEsp32I2sMethod.h
+++ b/src/internal/NeoEsp32I2sMethod.h
@@ -170,7 +170,9 @@ public:
 
         FillBuffers();
 
-        i2sWrite(T_BUS::I2sBusNumber, _i2sBuffer, _i2sBufferSize, false, false);
+        const auto written = i2sWrite(T_BUS::I2sBusNumber, _i2sBuffer, _i2sBufferSize, false, false);
+        if (written != _i2sBufferSize)
+            ESP_LOGW("NEOPIXL", "written != bufferSize %zd %u", written, _i2sBufferSize);
     }
 
     uint8_t* getData() const
@@ -273,4 +275,4 @@ typedef NeoEsp32I2s1Ws2812xInvertedMethod Neo800KbpsInvertedMethod;
 typedef NeoEsp32I2s1400KbpsInvertedMethod Neo400KbpsInvertedMethod;
 */
 
-#endif
\ No newline at end of file
+#endif