diff --git a/close_led.py b/close_led.py
new file mode 100644
index 0000000..bec846b
--- /dev/null
+++ b/close_led.py
@@ -0,0 +1,20 @@
+'''
+实验名称：点亮第1个LED
+实验平台：核桃派
+'''
+
+#导入相关模块
+import board
+from digitalio import DigitalInOut, Direction
+if __name__ == '__main__':
+    
+    try:
+        # 构建LED对象和初始化
+        led = DigitalInOut(board)  # 定义引脚编号
+        led.direction = Direction.OUTPUT  # IO为输出
+
+        led.value = 1  # 输出高电平，点亮板载LED蓝灯
+
+        # led.value = 0 #输出低电平，熄灭板载LED蓝灯
+    except:
+        pass
diff --git a/conf/device/device.conf b/conf/device/device.conf
index 6ed4607..fd2560e 100644
--- a/conf/device/device.conf
+++ b/conf/device/device.conf
@@ -16,8 +16,8 @@ subscribe_topic=lihai_lot_walnutpi_dev_2
 # 发布消息的主题
 publish_topic=camera_2
 info_topic=info_dev_2
-username=lihai_lot_land_1
-password=lihai_lot_land_1
+username=18783045599
+password=18783045599
 ####################################
 # 设备3-64G
 [lihai_lot_walnutpi_dev_3]
@@ -26,8 +26,8 @@ subscribe_topic=lihai_lot_walnutpi_dev_3
 # 发布消息的主题
 publish_topic=camera_3
 info_topic=info_dev_3
-username=lihai_lot_land_1
-password=lihai_lot_land_1
+username=13433212473
+password=13433212473
 ####################################
 # 设备4-64G
 [lihai_lot_walnutpi_dev_4]
@@ -36,8 +36,8 @@ subscribe_topic=lihai_lot_walnutpi_dev_4
 # 发布消息的主题
 publish_topic=camera_4
 info_topic=info_dev_4
-username=lihai_lot_land_1
-password=lihai_lot_land_1
+username=17685151643
+password=17685151643
 ####################################
 # 设备5-64G
 [lihai_lot_walnutpi_dev_5]
@@ -46,8 +46,8 @@ subscribe_topic=lihai_lot_walnutpi_dev_5
 # 发布消息的主题
 publish_topic=camera_5
 info_topic=info_dev_5
-username=lihai_lot_land_1
-password=lihai_lot_land_1
+username=13698151291
+password=13698151291
 ####################################
 # 设备6-64G
 [lihai_lot_walnutpi_dev_6]