diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index 96c1d6650..44cd5b082 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -366,6 +366,7 @@ static void espnow_task (void *pvParameter) {
     }
     while (xQueueReceive(espnow_queue, &evt, portMAX_DELAY) == pdTRUE) {
         switch (evt.id) {
+            // Send Callback
             case ESPNOW_SEND_CB:
             {
                 espnow_event_send_cb_t *send_cb = &evt.info.send_cb;