Index: sources/bluetooth/BluetoothInterface.h
===================================================================
diff -u -rf11dd9cd2c07f96d9d939d70ed9c4ce2edef2a9d -re4a0e2fc4c7ae0cbce0d670772276bf7f5ff3845
--- sources/bluetooth/BluetoothInterface.h	(.../BluetoothInterface.h)	(revision f11dd9cd2c07f96d9d939d70ed9c4ce2edef2a9d)
+++ sources/bluetooth/BluetoothInterface.h	(.../BluetoothInterface.h)	(revision e4a0e2fc4c7ae0cbce0d670772276bf7f5ff3845)
@@ -34,8 +34,10 @@
 
 using namespace Model;
 /*!
- * \brief The MessageAcknowModel class
- * \details The wrapper class of the AcknowModel which does the thread handling.
+ * \brief   The Bluetooth Controller class
+ * \details The wrapper class of the Bluetooth which does the thread handling.
+ * \warning In the Bluetooth interface it checks about the Bluetooth POST to avoid creating threads, objects.
+ *          The validity of the Bluetooth interface has to be always checked before use.
  */
 class BluetoothInterface : public QObject
 {
@@ -50,25 +52,26 @@
     typedef QMap< QBluetoothUuid::ServiceClassUuid, QLowEnergyService *> ServiceMap;
 
     QThread    *_thread     = nullptr;
-    bool        _init       = false;
+    bool        _init       = false  ;
 
+    bool        _isValid    = false  ;
 
+    const char                     *_invalidLocalAddress        = "00:00:00:00:00:00";
     QStringList                     _supportedDeviceKeywords     { "BP7000", "BLEsmart", "BLESmart" }; // Regarding to Omron Documents.
     QBluetoothLocalDevice          *_local                      = nullptr   ;
     QBluetoothDeviceDiscoveryAgent *_agent                      = nullptr   ;
     QLowEnergyController           *_device                     = nullptr   ;
 
-    // QList<QLowEnergyService *>      _services                               ;
-
     QLowEnergyService              *_serviceDeviceInformation   = nullptr   ;
     QLowEnergyService              *_serviceCurrentTime         = nullptr   ;
     QLowEnergyService              *_serviceBloodPressure       = nullptr   ;
     QLowEnergyService              *_serviceBattery             = nullptr   ;
 
     QBluetoothDeviceInfo            _temp                                   ;
 
-    bool                            _reconnectionActive           = false     ;
+    bool                            _reconnectionActive         = false     ;
     const quint16                   _interval                   = 1000      ; // the interface timer base interval in mSec
+
 public:
     // 19 total bytes
     struct MeasurementData {
@@ -87,6 +90,9 @@
         uint16_t measurement_status;             // 2 bytes
     };
 
+    bool isValid(           ) const { return _isValid  ; }
+    void   valid(bool vValid)       { _isValid = vValid; }
+
 protected:
     void timerEvent(QTimerEvent *event) override;
 
@@ -141,6 +147,7 @@
     void quitServices           ();
 
     bool isLocalValid           ();
+    bool isAgentValid           ();
     bool isInfoValid            ();
     bool isDeviceValid          ();
     // bool isServiceValid         (QLowEnergyService *vService);
@@ -151,14 +158,23 @@
     bool reconnectToDevice      ();
     void discoverServices       ();
     void discoverServicesDetails();
+    void enableNotify           ();
+    void readMeasurements       ();
+    void readInformation        ();
+    void printCharacteristics   (QLowEnergyService *vService);
 
     void notifyStateChange(const BluetoothData &vData);
 
     void parseMeasurement (const QByteArray &byteArray);
 signals:
     void    didStateChange(const BluetoothData &vData);
 
-    SAFE_CALL(start )
-    SAFE_CALL(doScan)
+    SAFE_CALL(doStart               )
+    SAFE_CALL(doScan                )
+    SAFE_CALL(doConnectToDevice     )
+    SAFE_CALL(doDiscoverServices    )
+    SAFE_CALL(doEnableNotify        )
+    SAFE_CALL(doReadMeasurements    )
+    SAFE_CALL(doReadInformation     )
 };
 }