add four button script

four_button/test.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# check GPIO 28 and 31
+# when GPIO is False
+# print button pressed
+# It will check both GPIO
+# for future.
+
+
+import RPi.GPIO as GPIO
+GPIO.setmode(GPIO.BCM)
+GPIO.setwarnings(False)
+
+def input_check(port):
+  button = GPIO.input(port)
+  return (button, port)
+
+ports = [28, 29, 30, 31]
+for port in ports:
+  GPIO.setup(port, GPIO.IN)
+
+while True:
+  for port in ports:
+    check = input_check(port)
+    if check[0] == False:
+      if port == ports[0]:
+        print '赤い釦が押されました'
+      elif port == ports[1]:
+        print '白い釦が押されました'
+      elif port == ports[2]:
+        print '黄の釦が押されました'
+      elif port == ports[3]:
+        print '灰の釦が押されました'
+      while check[0] == False:
+        check = input_check(port)