diff --git a/test_led.py b/test_led.py
index 164ccdf..d7d7c7d 100644
--- a/test_led.py
+++ b/test_led.py
@@ -14,5 +14,5 @@ while True:
     print("熄灭")
     led.value = 0  # 输出低电平，熄灭板载LED蓝灯
     print("点亮")
-    time.sleep(5)
+    time.sleep(20)
     led.value = 1  # 输出高电平，点亮板载LED蓝灯