diff --git a/calzelarm.py b/calzelarm.py
index 995e2ec..eb9ec16 100644
--- a/calzelarm.py
+++ b/calzelarm.py
@@ -1,8 +1,13 @@
 import RPi.GPIO as GPIO
-
 CHANNEL = 19
+GPIO.setmode(GPIO.BOARD)
+
+
+GPIO.setup(CHANNEL, GPIO.IN)
 
 if GPIO.input(CHANNEL):
     print('Input was HIGH')
 else:
-    print('Input was LOW')
\ No newline at end of file
+    print('Input was LOW')
+
+GPIO.cleanup()