diff --git a/hidReader.ino b/hidReader.ino
index 537d813..421cf27 100644
--- a/hidReader.ino
+++ b/hidReader.ino
@@ -9,6 +9,10 @@
 #include <limits.h>
 #include <Keyboard.h>
 
+// DATA pins
+#define DATA0 2
+#define DATA1 3
+
 // LED pins
 #define LED_GREEN 11;
 #define LED_RED 12;
@@ -42,13 +46,13 @@ void ISR_INT1() {
 }
 
 void setup() {
-  pinMode(2, INPUT); // DATA0 (INT0)
-  pinMode(3, INPUT); // DATA1 (INT1)
+  pinMode(DATA0, INPUT);
+  pinMode(DATA1, INPUT);
 
   Serial.begin(9600);
 
-  attachInterrupt(0, ISR_INT0, FALLING);
-  attachInterrupt(1, ISR_INT1, FALLING);
+  attachInterrupt(digitalPinToInterrupt(DATA0), ISR_INT0, FALLING);
+  attachInterrupt(digitalPinToInterrupt(DATA1), ISR_INT1, FALLING);
 
   Keyboard.begin();
 }