...

diff --git a/RaspberryPi/led.py b/RaspberryPi/led.py
new file mode 100755 (executable)
index 0000000..c036e64
--- /dev/null
+++ b/RaspberryPi/led.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# ------------------------------------------------------------------------
+#   File Name: led.py
+#      Author: Zhao Yanbai
+#              Sat Jan 10 21:53:49 2015
+# Description: none
+# ------------------------------------------------------------------------
+import RPi.GPIO as GPIO
+import time
+
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(7, GPIO.OUT)
+
+times = 0
+while True :
+    if times % 2 == 0 :
+        GPIO.output(7, GPIO.HIGH)
+    else :
+        GPIO.output(7, GPIO.LOW)
+    time.sleep(1)
+    times += 1