diff --git a/Grbl_Esp32/src/Defaults.h b/Grbl_Esp32/src/Defaults.h
index f47b9992..47474109 100644
--- a/Grbl_Esp32/src/Defaults.h
+++ b/Grbl_Esp32/src/Defaults.h
@@ -61,42 +61,6 @@
 #    define SDCARD_DET_PIN UNDEFINED_PIN
 #endif
 
-// ================ User Digital I/O ==============================
-
-#ifndef USER_DIGITAL_PIN_0
-#    define USER_DIGITAL_PIN_0 UNDEFINED_PIN
-#endif
-
-#ifndef USER_DIGITAL_PIN_1
-#    define USER_DIGITAL_PIN_1 UNDEFINED_PIN
-#endif
-
-#ifndef USER_DIGITAL_PIN_2
-#    define USER_DIGITAL_PIN_2 UNDEFINED_PIN
-#endif
-
-#ifndef USER_DIGITAL_PIN_3
-#    define USER_DIGITAL_PIN_3 UNDEFINED_PIN
-#endif
-
-// ================ User Analog I/O ==============================
-
-#ifndef USER_ANALOG_PIN_0
-#    define USER_ANALOG_PIN_0 UNDEFINED_PIN
-#endif
-
-#ifndef USER_ANALOG_PIN_1
-#    define USER_ANALOG_PIN_1 UNDEFINED_PIN
-#endif
-
-#ifndef USER_ANALOG_PIN_2
-#    define USER_ANALOG_PIN_2 UNDEFINED_PIN
-#endif
-
-#ifndef USER_ANALOG_PIN_3
-#    define USER_ANALOG_PIN_3 UNDEFINED_PIN
-#endif
-
 #ifndef USER_ANALOG_PIN_0_FREQ
 #    define USER_ANALOG_PIN_0_FREQ 5000
 #endif