diff --git a/app/main.c b/app/main.c
index 70ded35..90c0794 100644
--- a/app/main.c
+++ b/app/main.c
@@ -40,6 +40,21 @@ void zdatachannel_data_handler(zdatachannel_evt_t* p_evt) {
     ZLOGI("rx:%s", hex2str(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length));
   }
 }
+
+static void ble_evt_handler(ble_evt_t const* p_ble_evt, void* p_context) {
+  uint32_t err_code;
+  switch (p_ble_evt->header.evt_id) {
+    case BLE_GAP_EVT_CONNECTED:
+      ZLOGI("Connected");
+      break;
+
+    case BLE_GAP_EVT_DISCONNECTED:
+      ZLOGI("Disconnected");
+      // zble_module_start_adv();
+      break;
+  }
+}
+
 void on_service_init(void) {
   /**
    * @brief 数据通道初始化
@@ -63,6 +78,7 @@ int main(void) {
           .on_service_init = on_service_init,
       };
   zble_module_init(&cfg);
+  NRF_SDH_BLE_OBSERVER(m_ble_observer, 3, ble_evt_handler, NULL);
 
   zble_module_start_adv();
   zsys_loop();
diff --git a/app/src/zble_module.c b/app/src/zble_module.c
index 8fa0ad0..26c36bf 100644
--- a/app/src/zble_module.c
+++ b/app/src/zble_module.c
@@ -62,12 +62,10 @@ static void ble_evt_handler(ble_evt_t const* p_ble_evt, void* p_context) {
   uint32_t err_code;
   switch (p_ble_evt->header.evt_id) {
     case BLE_GAP_EVT_CONNECTED:
-      NRF_LOG_INFO("Connected");
       m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
       break;
 
     case BLE_GAP_EVT_DISCONNECTED:
-      NRF_LOG_INFO("Disconnected");
       m_conn_handle = BLE_CONN_HANDLE_INVALID;
       break;