diff --git a/test_led.py b/test_led.py
index 9ee4b5b..4eecac1 100644
--- a/test_led.py
+++ b/test_led.py
@@ -9,7 +9,7 @@ import board
 from digitalio import DigitalInOut, Direction
 # 构建LED对象和初始化
 while True:
-    led = DigitalInOut(board.CS1)  # 定义引脚编号
+    led = DigitalInOut(board.LED)  # 定义引脚编号
     led.direction = Direction.OUTPUT  # IO为输出
     led.value = 0  # 输出低电平，熄灭板载LED蓝灯
     print("熄灭")