diff --git a/app/drivers/sertrf/device.c b/app/drivers/sertrf/device.c
index 837e88f..51827c5 100644
--- a/app/drivers/sertrf/device.c
+++ b/app/drivers/sertrf/device.c
@@ -1,6 +1,15 @@
 #include "device.h"
 #include "config/board_config.h"
 
+/**
+ * @brief PC OR 手机数据内部接口 
+ *
+ * @param port 由对应的驱动提供的绑定接口获得的句柄
+ * @param type 对应的数据接口类型
+ * @retval 0 成功
+ */
+static uint8_t pc_device_choice_inside(device_t *port, uint8_t type, uint8_t connect);
+
 uint8_t device_init(device_t *port)
 {
     uint8_t res = DEVICE_OK;
diff --git a/app/drivers/sertrf/device.h b/app/drivers/sertrf/device.h
index f43931b..f953358 100644
--- a/app/drivers/sertrf/device.h
+++ b/app/drivers/sertrf/device.h
@@ -104,14 +104,6 @@ uint8_t wifi_init(init_device_t *port);
  * @retval 0 成功
  */
 uint8_t embedded_device_choice(device_t *port, uint8_t type);
-/**
- * @brief PC OR 手机数据内部接口 
- *
- * @param port 由对应的驱动提供的绑定接口获得的句柄
- * @param type 对应的数据接口类型
- * @retval 0 成功
- */
-static uint8_t pc_device_choice_inside(device_t *port, uint8_t type, uint8_t connect);
 /**
  * @brief PC OR 手机数据接口
  *
diff --git a/app/drivers/sertrf/sertrf.c b/app/drivers/sertrf/sertrf.c
index 08dc118..3188cf2 100644
--- a/app/drivers/sertrf/sertrf.c
+++ b/app/drivers/sertrf/sertrf.c
@@ -43,8 +43,29 @@ void embedded_thread(void* arg)
             // SYS_LOG_INF("data : %s", data);
             embedded_device_write(&sertrf.device, data, embedded_size);
         }
+        pc_link_rgb_color(sertrf.device.connect_pc);
         //需要添加一些延时，否则会卡死，导致看门狗复位
         // vTaskDelay(( TickType_t ) 1000 / configTICK_RATE_HZ);
         os_thread_sleep(1);
     }
-}
\ No newline at end of file
+}
+void pc_link_rgb_color(uint8_t connect)
+{
+    static uint8_t last_connect = 0;
+    if(connect != last_connect)
+    {
+        switch (connect)
+        {
+            case DISCONNECT:
+                rgb_color_change(0, RGB_COLOR_RAD);
+                break;
+            case CONNECT_WIFI:
+                rgb_color_change(0, RGB_COLOR_GREEN);
+                break;
+            case CONNECT_BLE:
+                rgb_color_change(0, RGB_COLOR_BLUE);
+                break;
+        }
+        last_connect = connect;
+    }
+}
diff --git a/app/drivers/sertrf/sertrf.h b/app/drivers/sertrf/sertrf.h
index 8070730..92cde7b 100644
--- a/app/drivers/sertrf/sertrf.h
+++ b/app/drivers/sertrf/sertrf.h
@@ -34,4 +34,8 @@ void sertrf_status(void);
  * @brief embedded thread
 */
 void embedded_thread(void* arg);
+/**
+ * @brief 根据连接状态显示不同的颜色
+*/
+void pc_link_rgb_color(uint8_t connect);