diff --git a/avrIOhelper/io-helper.h b/avrIOhelper/io-helper.h
index 313c787..725a8b2 100644
--- a/avrIOhelper/io-helper.h
+++ b/avrIOhelper/io-helper.h
@@ -108,10 +108,14 @@ void ioHelperEdgeDetector(void);
 #define BitPinD3 10 //INO
 #define BitPinD2 11 //IN1
 
+#define BTN_HEIZEN_AN           BitPinK2
+#define BTN_HEIZEN_AUS          BitPinK3
 
-#define IN_ANLAGE_EIN_INV           BitPinF7
+#define IN_ANLAGE_EIN_INV       BitPinF7
 #define IN_NOTAUS_ANLAGE_R      BitPinK5
 #define IN_NOTAUS_ANLAGE        BitPinK4
 #define IN_NOTAUS_SCHRANK       BitPinK6
 
+#define MOD_OUT_HEIZEN_LED      1
+
 #endif