diff --git a/ESP-IDF_Robot/build/.ninja_lock b/ESP-IDF_Robot/build/.ninja_lock
new file mode 100644
index 000000000..e69de29bb
diff --git a/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref b/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
index 6df15965f..3eaeddc33 100644
--- a/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
+++ b/ESP-IDF_Robot/build/CMakeFiles/git-data/head-ref
@@ -1 +1 @@
-610e0e35608326be43801e61bfb2c343eeed3002
+842303de9361eceb6ff5a5b1cc476c758a07bdba
diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index c8e1ace63..e6b06658b 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -371,7 +371,7 @@ static void espnow_task (void *pvParameter) {
                 ESP_LOGI(TAG, "send data to "MACSTR"", MAC2STR(send_cb->mac_addr));
 
                 memcpy(send_param->dest_mac, send_cb->mac_addr, ESP_NOW_ETH_ALEN);
-                example_espnow_data_prepare(send_param);
+                espnow_data_prepare(send_param);
 
                 /* Send the next data after the previous data is sent. */
                 if (esp_now_send(send_param->dest_mac, send_param->buffer, send_param->len) != ESP_OK) {