diff --git a/dep/zesp32-submodule-zsimpleble-server b/dep/zesp32-submodule-zsimpleble-server
index 3e867f5..3f34d34 160000
--- a/dep/zesp32-submodule-zsimpleble-server
+++ b/dep/zesp32-submodule-zsimpleble-server
@@ -1 +1 @@
-Subproject commit 3e867f54332c6cc7e012f1829630b63e6763bccf
+Subproject commit 3f34d34e30e2c8e102d20bcd1eb43864b5a12980
diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index a4b8961..2a6cfee 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -1,2 +1,7 @@
-idf_component_register(SRCS "ble_spp_server_demo.c"
-                    INCLUDE_DIRS ".")
+idf_component_register(SRCS #
+    "../dep/zesp32-submodule-zsimpleble-server/zsimpleble_server.c"
+    "ble_spp_server_demo.c"
+    "main.c"
+    INCLUDE_DIRS #
+    "../dep/"
+    ".")
diff --git a/main/ble_spp_server_demo.c b/main/ble_spp_server_demo.c
index 5b6861c..2ad3de8 100644
--- a/main/ble_spp_server_demo.c
+++ b/main/ble_spp_server_demo.c
@@ -28,7 +28,7 @@
 #define SPP_PROFILE_NUM             1
 #define SPP_PROFILE_APP_IDX         0
 #define ESP_SPP_APP_ID              0x56
-#define SAMPLE_DEVICE_NAME          "ZZH_SPP_SERVER"    //The Device Name Characteristics in GAP
+#define SAMPLE_DEVICE_NAME          "ESP_SPP_SERVER"    //The Device Name Characteristics in GAP
 #define SPP_SVC_INST_ID	            0
 
 /// SPP Service
@@ -49,7 +49,7 @@ static const uint8_t spp_adv_data[23] = {
     /* Complete List of 16-bit Service Class UUIDs */
     0x03,0x03,0xF0,0xAB,
     /* Complete Local Name in advertising */
-    0x0F,0x09, 'Z', 'Z', 'H', '_', 'S', 'P', 'P', '_', 'S', 'E', 'R','V', 'E', 'R'
+    0x0F,0x09, 'E', 'S', 'P', '_', 'S', 'P', 'P', '_', 'S', 'E', 'R','V', 'E', 'R'
 };
 
 static uint16_t spp_mtu_size = 23;
@@ -565,8 +565,6 @@ static void gatts_profile_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_
     	}
     	case ESP_GATTS_MTU_EVT:
     	    spp_mtu_size = p_data->mtu.mtu;
-    	    ESP_LOGI(GATTS_TABLE_TAG, "===========================SET MTU SIZE %d===========================\n",spp_mtu_size);
-            
     	    break;
     	case ESP_GATTS_CONF_EVT:
     	    break;
@@ -654,7 +652,7 @@ static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_
     } while (0);
 }
 
-void app_main(void)
+void ble_spp_server_demo_app_main(void)
 {
     esp_err_t ret;
     esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
diff --git a/main/ble_spp_server_demo.h b/main/ble_spp_server_demo.h
index 15b3b67..62c378c 100644
--- a/main/ble_spp_server_demo.h
+++ b/main/ble_spp_server_demo.h
@@ -6,7 +6,6 @@
    CONDITIONS OF ANY KIND, either express or implied.
 */
 
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -18,34 +17,36 @@
 //#define SUPPORT_HEARTBEAT
 //#define SPP_DEBUG_MODE
 
-#define spp_sprintf(s,...)         sprintf((char*)(s), ##__VA_ARGS__)
-#define SPP_DATA_MAX_LEN           (512)
-#define SPP_CMD_MAX_LEN            (20)
-#define SPP_STATUS_MAX_LEN         (20)
-#define SPP_DATA_BUFF_MAX_LEN      (2*1024)
-///Attributes State Machine
-enum{
-    SPP_IDX_SVC,
+#define spp_sprintf(s, ...) sprintf((char*)(s), ##__VA_ARGS__)
+#define SPP_DATA_MAX_LEN (512)
+#define SPP_CMD_MAX_LEN (20)
+#define SPP_STATUS_MAX_LEN (20)
+#define SPP_DATA_BUFF_MAX_LEN (2 * 1024)
+/// Attributes State Machine
+enum {
+  SPP_IDX_SVC,
 
-    SPP_IDX_SPP_DATA_RECV_CHAR,
-    SPP_IDX_SPP_DATA_RECV_VAL,
+  SPP_IDX_SPP_DATA_RECV_CHAR,
+  SPP_IDX_SPP_DATA_RECV_VAL,
 
-    SPP_IDX_SPP_DATA_NOTIFY_CHAR,
-    SPP_IDX_SPP_DATA_NTY_VAL,
-    SPP_IDX_SPP_DATA_NTF_CFG,
+  SPP_IDX_SPP_DATA_NOTIFY_CHAR,
+  SPP_IDX_SPP_DATA_NTY_VAL,
+  SPP_IDX_SPP_DATA_NTF_CFG,
 
-    SPP_IDX_SPP_COMMAND_CHAR,
-    SPP_IDX_SPP_COMMAND_VAL,
+  SPP_IDX_SPP_COMMAND_CHAR,
+  SPP_IDX_SPP_COMMAND_VAL,
 
-    SPP_IDX_SPP_STATUS_CHAR,
-    SPP_IDX_SPP_STATUS_VAL,
-    SPP_IDX_SPP_STATUS_CFG,
+  SPP_IDX_SPP_STATUS_CHAR,
+  SPP_IDX_SPP_STATUS_VAL,
+  SPP_IDX_SPP_STATUS_CFG,
 
 #ifdef SUPPORT_HEARTBEAT
-    SPP_IDX_SPP_HEARTBEAT_CHAR,
-    SPP_IDX_SPP_HEARTBEAT_VAL,
-    SPP_IDX_SPP_HEARTBEAT_CFG,
+  SPP_IDX_SPP_HEARTBEAT_CHAR,
+  SPP_IDX_SPP_HEARTBEAT_VAL,
+  SPP_IDX_SPP_HEARTBEAT_CFG,
 #endif
 
-    SPP_IDX_NB,
+  SPP_IDX_NB,
 };
+
+void ble_spp_server_demo_app_main(void);
diff --git a/main/main.c b/main/main.c
new file mode 100644
index 0000000..5e19ad0
--- /dev/null
+++ b/main/main.c
@@ -0,0 +1,14 @@
+#include "esp_log.h"
+#include "esp_system.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/event_groups.h"
+#include "freertos/task.h"
+#include "nvs_flash.h"
+#include "string.h"
+//
+#include "ble_spp_server_demo.h"
+
+void app_main(void) {
+  ble_spp_server_demo_app_main();
+  return;
+}
diff --git a/main/zsimpleble_server.c b/main/zsimpleble_server.c
deleted file mode 100644
index e69de29..0000000
diff --git a/main/zsimpleble_server.h b/main/zsimpleble_server.h
deleted file mode 100644
index e69de29..0000000