diff --git a/NS.py b/NS.py
index 75880b4..4c8240f 100644
--- a/NS.py
+++ b/NS.py
@@ -243,6 +243,10 @@ class NS(Game, Animation):
             # Initialize GPIO interface
             gpio.initialize_gpio()
 
+            # Launch a separate thread for reading the GPIO (and allowing its custom delays/sleeps)
+            self.gpio_thread = Thread(target=self.read_gpio)
+            self.gpio_thread.start()
+
         # init Arduino
         elif self.serial_enabled():
 
@@ -329,6 +333,12 @@ class NS(Game, Animation):
     def serial_enabled(self):
         return self.get_configuration("input", "serial")
 
+    def read_gpio(self):
+        """
+        Test all connections of GPIO input pins.
+        """
+        pass
+
     def read_serial(self):
         while not self.serial_kill:
             name = self.get_configuration("input", "arduino-port")
@@ -382,15 +392,12 @@ class NS(Game, Animation):
         """
         Check the connection status of the GPIO pins and turn on the appropriate light objects (the pads).
         """
-        # Get the active (a.k.a. pressed) state of each GPIO pin (a.k.a. pad)
-        activity = gpio.activity()
-
-        for light_id in activity.keys():
+        for light_id in self.gpio_data:
             # The pressed state is set to the activity state
-            self.platform.lights[light_id].pressed = activity[light_id]
+            self.platform.lights[light_id].pressed = self.gpio_data[light_id]
 
             # Reset idle timer if a light is detected as pressed
-            if activity[light_id]:
+            if self.gpio_data[light_id]:
                 self.idle_elapsed = 0
 
     def reset(self, leave_wipe_running=False):