@@ -24,5 +24,9 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define USE_I2C
#define USE_SERIAL
-#define NO_ACTION_MACRO
-#define NO_ACTION_FUNCTION
+#if !defined(NO_ACTION_MACRO)
+ #define NO_ACTION_MACRO
+#endif
+#if !defined(NO_ACTION_FUNCTION)
+ #define NO_ACTION_FUNCTION