From c0bfa2bd7c3e985fcac1b960384d61738a1c5b42 Mon Sep 17 00:00:00 2001
From: Michael Mandl <mandlm@molez.net>
Date: Wed, 23 Dec 2015 22:24:22 +0100
Subject: [PATCH] switch led on pin 4 with button on pin 14

---
 button_led.py | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 button_led.py

diff --git a/button_led.py b/button_led.py
new file mode 100644
index 0000000..3093c68
--- /dev/null
+++ b/button_led.py
@@ -0,0 +1,26 @@
+#!/usr/bin/python
+
+from time import sleep
+
+import RPi.GPIO as GPIO
+
+try:
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setup(4, GPIO.OUT)
+    GPIO.setup(14, GPIO.IN, pull_up_down=GPIO.PUD_UP)
+
+    last_state = True
+    last_led_state = False
+
+    while True:
+        input_state = GPIO.input(14)
+        if input_state == False and input_state != last_state:
+            print 'Button pressed'
+            GPIO.output(4, ~last_led_state)
+            last_led_state = ~last_led_state
+        last_state = input_state
+        sleep(0.1)
+except KeyboardInterrupt:
+    GPIO.output(4, False)
+finally:
+    GPIO.cleanup()