diff --git a/version.txt b/version.txt
index e3a4f19..cc6612c 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.2.0
\ No newline at end of file
+2.3.0
\ No newline at end of file
diff --git a/zh_encoder.c b/zh_encoder.c
index 329e408..3339ee6 100644
--- a/zh_encoder.c
+++ b/zh_encoder.c
@@ -321,6 +321,7 @@ static void IRAM_ATTR _zh_encoder_isr_processing_task(void *pvParameter)
 {
     zh_encoder_handle_t *encoder_handle = (zh_encoder_handle_t *)pvParameter;
     int pcnt_count = {0};
+    bool is_value_changed = false;
     while (xQueueReceive(_queue_handle, &pcnt_count, portMAX_DELAY) == pdTRUE)
     {
         switch (pcnt_count)
@@ -333,6 +334,7 @@ static void IRAM_ATTR _zh_encoder_isr_processing_task(void *pvParameter)
                 {
                     encoder_handle->encoder_position = encoder_handle->encoder_max_value;
                 }
+                is_value_changed = true;
             }
             break;
         case ZH_ENCODER_DIRECTION_CCW:
@@ -343,19 +345,24 @@ static void IRAM_ATTR _zh_encoder_isr_processing_task(void *pvParameter)
                 {
                     encoder_handle->encoder_position = encoder_handle->encoder_min_value;
                 }
+                is_value_changed = true;
             }
             break;
         default:
             break;
         }
-        zh_encoder_event_on_isr_t encoder_data = {0};
-        encoder_data.encoder_number = encoder_handle->encoder_number;
-        encoder_data.encoder_position = encoder_handle->encoder_position;
-        esp_err_t err = esp_event_post(ZH_ENCODER, ZH_ENCODER_EVENT, &encoder_data, sizeof(zh_encoder_event_on_isr_t), 1000 / portTICK_PERIOD_MS);
-        if (err != ESP_OK)
+        if (is_value_changed == true)
         {
-            ++_stats.event_post_error;
-            ZH_LOGE("Encoder isr processing failed. Failed to post interrupt event.", err);
+            is_value_changed = false;
+            zh_encoder_event_on_isr_t encoder_data = {0};
+            encoder_data.encoder_number = encoder_handle->encoder_number;
+            encoder_data.encoder_position = encoder_handle->encoder_position;
+            esp_err_t err = esp_event_post(ZH_ENCODER, ZH_ENCODER_EVENT, &encoder_data, sizeof(zh_encoder_event_on_isr_t), 1000 / portTICK_PERIOD_MS);
+            if (err != ESP_OK)
+            {
+                ++_stats.event_post_error;
+                ZH_LOGE("Encoder isr processing failed. Failed to post interrupt event.", err);
+            }
         }
         _stats.min_stack_size = (uint32_t)uxTaskGetStackHighWaterMark(NULL);
     }