diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a6f30ab..5ab9bba 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -43,6 +43,8 @@ set(SOURCES
 ./knx/group_object/dpt/dpt.h
 ./knx/group_object/dpt/dpt1.cpp
 ./knx/group_object/dpt/dpt1.h
+./knx/group_object/dpt/dpt2.cpp
+./knx/group_object/dpt/dpt2.h
 ./knx/group_object/dpt/dpt9.cpp
 ./knx/group_object/dpt/dpt9.h
 ./knx/group_object/dpt/dptconvert.cpp
diff --git a/src/knx/group_object/dpt/dpt.cpp b/src/knx/group_object/dpt/dpt.cpp
index fd0db37..b7b5711 100644
--- a/src/knx/group_object/dpt/dpt.cpp
+++ b/src/knx/group_object/dpt/dpt.cpp
@@ -14,6 +14,6 @@ namespace Knx
         : mainGroup(mainGroup), subGroup(subGroup), index(index)
     {
         if (subGroup == 0)
-            println("WARNING: You used and invalid Dpt *.0");
+            LOGGER.warning("You used and invalid Dpt *.0");
     }
 }
\ No newline at end of file
diff --git a/src/knx/group_object/dpt/dpt.h b/src/knx/group_object/dpt/dpt.h
index 30e2c3b..ba1c9e6 100644
--- a/src/knx/group_object/dpt/dpt.h
+++ b/src/knx/group_object/dpt/dpt.h
@@ -3,38 +3,6 @@
 #include "../group_object.h"
 namespace Knx
 {
-#define DPT_Ramp Dpt(1, 4)
-#define DPT_Alarm Dpt(1, 5)
-#define DPT_BinaryValue Dpt(1, 6)
-#define DPT_Step Dpt(1, 7)
-#define DPT_UpDown Dpt(1, 8)
-#define DPT_OpenClose Dpt(1, 9)
-#define DPT_Start Dpt(1, 10)
-#define DPT_State Dpt(1, 11)
-#define DPT_Invert Dpt(1, 12)
-#define DPT_DimSendStyle Dpt(1, 13)
-#define DPT_InputSource Dpt(1, 14)
-#define DPT_Reset Dpt(1, 15)
-#define DPT_Ack Dpt(1, 16)
-#define DPT_Trigger Dpt(1, 17)
-#define DPT_Occupancy Dpt(1, 18)
-#define DPT_Window_Door Dpt(1, 19)
-#define DPT_LogicalFunction Dpt(1, 21)
-#define DPT_Scene_AB Dpt(1, 22)
-#define DPT_ShutterBlinds_Mode Dpt(1, 23)
-#define DPT_Heat_Cool Dpt(1, 100)
-#define DPT_Switch_Control Dpt(2, 1)
-#define DPT_Bool_Control Dpt(2, 2)
-#define DPT_Enable_Control Dpt(2, 3)
-#define DPT_Ramp_Control Dpt(2, 4)
-#define DPT_Alarm_Control Dpt(2, 5)
-#define DPT_BinaryValue_Control Dpt(2, 6)
-#define DPT_Step_Control Dpt(2, 7)
-#define DPT_Direction1_Control Dpt(2, 8)
-#define DPT_Direction2_Control Dpt(2, 9)
-#define DPT_Start_Control Dpt(2, 10)
-#define DPT_State_Control Dpt(2, 11)
-#define DPT_Invert_Control Dpt(2, 12)
 #define DPT_Control_Dimming Dpt(3, 7)
 #define DPT_Control_Blinds Dpt(3, 8)
 #define DPT_Char_ASCII Dpt(4, 1)
diff --git a/src/knx/group_object/dpt/dpt1.h b/src/knx/group_object/dpt/dpt1.h
index 4d37ffb..f53e852 100644
--- a/src/knx/group_object/dpt/dpt1.h
+++ b/src/knx/group_object/dpt/dpt1.h
@@ -58,4 +58,26 @@ namespace Knx
             operator EnableValue() const;
             DPT_Enable& operator=(const EnableValue value);
     };
+
+// TODO:
+#define DPT_Ramp Dpt1(4)
+#define DPT_Alarm Dpt1(5)
+#define DPT_BinaryValue Dpt1(6)
+#define DPT_Step Dpt1(7)
+#define DPT_UpDown Dpt1(8)
+#define DPT_OpenClose Dpt1(9)
+#define DPT_Start Dpt1(10)
+#define DPT_State Dpt1(11)
+#define DPT_Invert Dpt1(12)
+#define DPT_DimSendStyle Dpt1(13)
+#define DPT_InputSource Dpt1(14)
+#define DPT_Reset Dpt1(15)
+#define DPT_Ack Dpt1(16)
+#define DPT_Trigger Dpt1(17)
+#define DPT_Occupancy Dpt1(18)
+#define DPT_Window_Door Dpt1(19)
+#define DPT_LogicalFunction Dpt1(21)
+#define DPT_Scene_AB Dpt1(22)
+#define DPT_ShutterBlinds_Mode Dpt1(23)
+#define DPT_DayNight Dpt1(24)
 }
\ No newline at end of file
diff --git a/src/knx/group_object/dpt/dpt2.cpp b/src/knx/group_object/dpt/dpt2.cpp
new file mode 100644
index 0000000..28554e7
--- /dev/null
+++ b/src/knx/group_object/dpt/dpt2.cpp
@@ -0,0 +1,64 @@
+#include "dpt2.h"
+
+#include "dptconvert.h"
+
+Knx::Dpt2::Dpt2(unsigned short subgroup /* = 0*/) : Dpt(2, subgroup) {}
+
+Knx::Dpt2::Dpt2(Dpt2Value value) : Dpt2()
+{
+    _value = value;
+}
+
+Knx::Go_SizeCode Knx::Dpt2::size() const
+{
+    return Go_2_Bit;
+}
+
+void Knx::Dpt2::encode(uint8_t* data) const
+{
+    if (_value ==  NoControl)
+    {
+        bitToPayload(data, 6, false);
+        return;
+    }
+
+    bitToPayload(data, 6, true);
+    bitToPayload(data, 7, _value == Control_Function1);
+}
+
+void Knx::Dpt2::decode(uint8_t* data)
+{
+    bool c = bitFromPayload(data, 6);
+
+    if (!c)
+    {
+        _value =  NoControl;
+        return;
+    }
+
+    bool v = bitFromPayload(data, 7);
+
+    _value = v ? Control_Function1 : Control_Function0;
+}
+
+void Knx::Dpt2::value(Dpt2Value value)
+{
+    _value = value;
+}
+
+Knx::Dpt2::Dpt2Value Knx::Dpt2::value() const
+{
+    return _value;
+}
+
+Knx::Dpt2::operator Dpt2Value() const
+{
+    return _value;
+}
+
+
+Knx::Dpt2& Knx::Dpt2::operator=(const Dpt2Value value)
+{
+    _value = value;
+    return *this;
+}
diff --git a/src/knx/group_object/dpt/dpt2.h b/src/knx/group_object/dpt/dpt2.h
new file mode 100644
index 0000000..85976b7
--- /dev/null
+++ b/src/knx/group_object/dpt/dpt2.h
@@ -0,0 +1,40 @@
+#pragma once
+#include "dpt.h"
+namespace Knx
+{
+    class Dpt2: public Dpt
+    {
+        public:
+            enum Dpt2Value
+            {
+                NoControl, Control_Function0, Control_Function1
+            };
+
+            Dpt2(unsigned short subgroup = 0);
+            Dpt2(Dpt2Value value);
+            Go_SizeCode size() const override;
+
+            virtual void encode(uint8_t* data) const override;
+            virtual void decode(uint8_t* data) override;
+
+            void value(Dpt2Value value);
+            Dpt2Value value() const;
+            operator Dpt2Value() const;
+            Dpt2& operator=(const Dpt2Value value);
+        private:
+            Dpt2Value _value;
+    };
+
+#define DPT_Switch_Control Dpt2(1)
+#define DPT_Bool_Control Dpt2(2)
+#define DPT_Enable_Control Dpt2(3)
+#define DPT_Ramp_Control Dpt2(4)
+#define DPT_Alarm_Control Dpt2(5)
+#define DPT_BinaryValue_Control Dpt2(6)
+#define DPT_Step_Control Dpt2(7)
+#define DPT_Direction1_Control Dpt2(8)
+#define DPT_Direction2_Control Dpt2(9)
+#define DPT_Start_Control Dpt2(10)
+#define DPT_State_Control Dpt2(11)
+#define DPT_Invert_Control Dpt2(12)
+}
\ No newline at end of file
diff --git a/src/knx/group_object/dpt/dpt9.cpp b/src/knx/group_object/dpt/dpt9.cpp
index cea3652..6060292 100644
--- a/src/knx/group_object/dpt/dpt9.cpp
+++ b/src/knx/group_object/dpt/dpt9.cpp
@@ -2,9 +2,12 @@
 
 #include "dptconvert.h"
 
-Knx::Dpt9::Dpt9() { mainGroup = 9; }
+Knx::Dpt9::Dpt9(unsigned short subgroup /* = 0*/): Dpt(9, subgroup) {}
 
-Knx::Dpt9::Dpt9(float value) : _value(value) { mainGroup = 9; }
+Knx::Dpt9::Dpt9(float value) : Dpt9()
+{
+    _value = value;
+}
 
 Knx::Go_SizeCode Knx::Dpt9::size() const
 {
diff --git a/src/knx/group_object/dpt/dpt9.h b/src/knx/group_object/dpt/dpt9.h
index 6c804a2..b4d4f45 100644
--- a/src/knx/group_object/dpt/dpt9.h
+++ b/src/knx/group_object/dpt/dpt9.h
@@ -5,7 +5,7 @@ namespace Knx
     class Dpt9: public Dpt
     {
         public:
-            Dpt9();
+            Dpt9(unsigned short subgroup = 0);
             Dpt9(float value);
             Go_SizeCode size() const override;
 
diff --git a/src/knx/group_object/dpt/dptconvert.cpp b/src/knx/group_object/dpt/dptconvert.cpp
index 1570248..e2804b7 100644
--- a/src/knx/group_object/dpt/dptconvert.cpp
+++ b/src/knx/group_object/dpt/dptconvert.cpp
@@ -18,11 +18,6 @@ namespace Knx
     {
         if (payload_length > 0)
         {
-             // DPT 2.* - Binary Control
-
-            if (datatype.mainGroup == 2 && datatype.subGroup >= 1 && datatype.subGroup <= 12 && datatype.index <= 1)
-                return busValueToBinaryControl(payload, payload_length, datatype, value);
-
             // DPT 3.* - Step Control
             if (datatype.mainGroup == 3 && datatype.subGroup >= 7 && datatype.subGroup <= 8 && datatype.index <= 1)
                 return busValueToStepControl(payload, payload_length, datatype, value);
@@ -173,11 +168,6 @@ namespace Knx
 
     int KNX_Encode_Value(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype)
     {
-
-        // DPT 2.* - Binary Control
-        if (datatype.mainGroup == 2 && datatype.subGroup >= 1 && datatype.subGroup <= 12 && datatype.index <= 1)
-            return valueToBusValueBinaryControl(value, payload, payload_length, datatype);
-
         // DPT 3.* - Step Control
         if (datatype.mainGroup == 3 && datatype.subGroup >= 7 && datatype.subGroup <= 8 && datatype.index <= 1)
             return valueToBusValueStepControl(value, payload, payload_length, datatype);
@@ -325,23 +315,6 @@ namespace Knx
         return false;
     }
 
-    int busValueToBinaryControl(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value)
-    {
-        ASSERT_PAYLOAD(1);
-
-        switch (datatype.index)
-        {
-            case 0:
-                value = bitFromPayload(payload, 6);
-                return true;
-
-            case 1:
-                value = bitFromPayload(payload, 7);
-                return true;
-        }
-
-        return false;
-    }
 
     int busValueToStepControl(const uint8_t* payload, size_t payload_length, const Dpt& datatype, KNXValue& value)
     {
@@ -988,24 +961,6 @@ namespace Knx
 
     //-------------------------------------------------------------------------------------------------------------------------------------
 
-    int valueToBusValueBinaryControl(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype)
-    {
-        switch (datatype.index)
-        {
-            case 0:
-                bitToPayload(payload, 6, value);
-                break;
-
-            case 1:
-                bitToPayload(payload, 7, value);
-                break;
-
-            default:
-                return false;
-        }
-
-        return true;
-    }
 
     int valueToBusValueStepControl(const KNXValue& value, uint8_t* payload, size_t payload_length, const Dpt& datatype)
     {
diff --git a/src/knx/group_object/dpt/dpts.h b/src/knx/group_object/dpt/dpts.h
index 012e513..68e2868 100644
--- a/src/knx/group_object/dpt/dpts.h
+++ b/src/knx/group_object/dpt/dpts.h
@@ -1,4 +1,5 @@
 #pragma once
 
 #include "dpt1.h"
+#include "dpt2.h"
 #include "dpt9.h"
\ No newline at end of file