From 93d05ae2ce54051a557fa678245b5091963b71e1 Mon Sep 17 00:00:00 2001
From: Lado Kumsiashvili <herrlado@gmail.com>
Date: Thu, 17 Oct 2019 23:58:07 +0200
Subject: [PATCH] fixed colVal scan to check the 4th column for 4x4 keypad

---
 matrix_keypad/RPi_GPIO.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/matrix_keypad/RPi_GPIO.py b/matrix_keypad/RPi_GPIO.py
index ad8400f..eec0ad2 100644
--- a/matrix_keypad/RPi_GPIO.py
+++ b/matrix_keypad/RPi_GPIO.py
@@ -72,7 +72,7 @@ def getKey(self):
                 colVal=j
                  
         # if colVal is not 0 thru 2 then no button was pressed and we can exit
-        if colVal <0 or colVal >2:
+        if colVal <0 or colVal > len(self.COLUMN):
             self.exit()
             return