diff --git a/SettingsDialog.qml b/SettingsDialog.qml
index 8a60145..630dae7 100644
--- a/SettingsDialog.qml
+++ b/SettingsDialog.qml
@@ -59,31 +59,12 @@ Dialog {
             anchors.fill: parent
             text: "connect"
             onClicked: {
-                var i;
-                if(i === 100){
-                    i = 0
-                    running = false
-                }
+//                connect_del.enabled = false
+//                connect_del.text = _cppBuzzerConn.get("offset")
+//                _cppBuzzerConn.connect()
+//                connect_del.enabled = true
+                connect_del.text = _cppBuzzerConn.test()
 
-                var theUrl = "http://192.168.4.1";
-                var xmlHttp = null;
-
-                xmlHttp = new XMLHttpRequest();
-                xmlHttp.open( "GET", theUrl, false );
-                xmlHttp.setRequestHeader("Content-type", "text/plain;charset=UTF-8");
-                xmlHttp.send( null );
-                var response = xmlHttp.responseText
-                var response_status = xmlHttp.status
-                connect_del.text = response
-                var res = response.split("<br>");
-                var time_now = new Date().getTime()
-                console.log(time_now)
-                console.log(res[1])
-                console.log(time_now-res[0])
-                root.buzzer_offset = time_now-res[0]
-                root.last_button_pressed = res[1]
-                console.log("buzzer_offset: "+root.buzzer_offset)
-                connect_del.text = response
             }
         }
     }
diff --git a/buzzerconn.cpp b/buzzerconn.cpp
index e95acf2..66d7383 100644
--- a/buzzerconn.cpp
+++ b/buzzerconn.cpp
@@ -3,7 +3,9 @@
 BuzzerConn::BuzzerConn(QObject *parent) : QObject(parent)
 {
     this->networkManager = new QNetworkAccessManager();
-    connect();
+    this->date = new QDateTime;
+    this->latest_button_pressed = 0;
+    this->connected = false;
 }
 
 bool BuzzerConn::connect()
@@ -12,9 +14,10 @@ bool BuzzerConn::connect()
 
     if(times[0] == 200.0){
         this->connected = true;
-        calcoffset();
-        calcoffset();
-        calcoffset();
+        this->latest_button_pressed = times[2];
+        for(int i=0;i<100;i++){
+            calcoffset();
+        }
         return(true);
     }
     else{
@@ -25,15 +28,24 @@ bool BuzzerConn::connect()
 void BuzzerConn::calcoffset()
 {
     QList<double> times = gettimes();
-    QDateTime * date = new QDateTime;
-    double offset = date->currentMSecsSinceEpoch() - times[2];
-    this->latest_offsets.append(offset);
-    double mem = 0;
-    for(int i=0;i<latest_offsets.length();i++){
-        qDebug()<<latest_offsets[i];
-        mem += latest_offsets[i];
+    if(times[0] == 200.0){
+        double offset = date->currentMSecsSinceEpoch() - times[2];
+        if(this->latest_offsets.length()>=100){
+            this->latest_offsets.removeFirst();
+        }
+        this->latest_offsets.append(offset);
+
+        double mem = 0;
+        for(int i=0;i<latest_offsets.length();i++){
+            mem += latest_offsets[i];
+        }
+        //this->offset = mem / double(latest_offsets.length());
+        this->offset = latest_offsets[latest_offsets.length()-1];
+        qDebug() << latest_offsets.length();
+        qDebug() << this->latest_offsets;
+        qDebug() << latest_offsets[latest_offsets.length()-1];
+        qDebug() << mem / double(latest_offsets.length());
     }
-    this->offset = mem / double(latest_offsets.length());
 }
 
 QList<double> BuzzerConn::gettimes()
@@ -43,7 +55,6 @@ QList<double> BuzzerConn::gettimes()
     times.append(double(ret.status_code));
 
     if(ret.status_code == 200){
-        qDebug()<<ret.text;
         ret.text.replace("\n","");
         ret.text.replace("\r","");
         QStringList times_cache = ret.text.split("<br>");
@@ -57,6 +68,59 @@ QList<double> BuzzerConn::gettimes()
     }
 }
 
+bool BuzzerConn::buzzer_triggered()
+{
+    QList<double> times = this->gettimes();
+    qDebug() << int(this->get("currtime") - this->starttime);
+    if(times[0] == 200.0 && this->connected){
+        if(times[2] > this->latest_button_pressed){
+            this->latest_button_pressed = times[2];
+
+            return(true);
+        }
+        else {
+            return(false);
+        }
+    }
+    else{
+        return(false);
+    }
+}
+
+bool BuzzerConn::start()
+{
+    if(!this->connected){
+        return(false);
+    }
+    QList<double> times = this->gettimes();
+    if(times[0] == 200.0 && this->connected){
+        this->latest_button_pressed = times[2];
+        return(true);
+    }
+    else{
+        return(false);
+    }
+}
+
+double BuzzerConn::get(QString key)
+{
+    if(key == "offset"){
+        return(this->offset);
+    }
+    else if (key == "lastpressed") {
+        return(this->latest_button_pressed);
+    }
+    else if( key == "currtime") {
+        return(this->date->currentMSecsSinceEpoch());
+    }
+}
+
+QString BuzzerConn::test()
+{
+    ReturnData_t ret = this->senddata(QUrl("http://www.google.de"));
+    return(ret.text);
+}
+
 ReturnData_t BuzzerConn::senddata(QUrl serviceUrl)
 {
 
@@ -67,7 +131,6 @@ ReturnData_t BuzzerConn::senddata(QUrl serviceUrl)
     request.setHeader(QNetworkRequest::ContentTypeHeader,
         "application/x-www-form-urlencoded");
 
-    //set ssl configuration
     //send a POST request with the given url and data to the server
     QUrlQuery pdata;
     QNetworkReply* reply;
diff --git a/buzzerconn.h b/buzzerconn.h
index 1bb22e0..356bb90 100644
--- a/buzzerconn.h
+++ b/buzzerconn.h
@@ -20,20 +20,28 @@ class BuzzerConn : public QObject
     Q_OBJECT
 public:
     explicit BuzzerConn(QObject *parent = nullptr);
-    double offset;
+    Q_INVOKABLE double offset;
     QList<double> latest_offsets;
+    double latest_button_pressed;
+    double starttime;
     bool connected;
 
+
 private:
     QNetworkAccessManager *networkManager;
+    QDateTime *date;
 
 signals:
 
 public slots:
     ReturnData_t senddata(QUrl serviceUrl);
-    QList<double> gettimes();
-    bool connect();
-    void calcoffset();
+    Q_INVOKABLE QList<double> gettimes();
+    Q_INVOKABLE bool connect();
+    Q_INVOKABLE void calcoffset();
+    Q_INVOKABLE bool buzzer_triggered();
+    Q_INVOKABLE bool start();
+    Q_INVOKABLE double get(QString key);
+    Q_INVOKABLE QString test();
 };
 
 #endif // BUZZERCONN_H
diff --git a/main.qml b/main.qml
index 11cf8cc..9eb2201 100644
--- a/main.qml
+++ b/main.qml
@@ -21,7 +21,7 @@ Window {
 
         property double startTime: 0
         property double stoppedTime: 0
-        property double currTime: new Date().getTime()
+        property double currTime
 
         property double buzzer_offset
         property double last_button_pressed
@@ -43,26 +43,28 @@ Window {
         Timer {
             id: running_refresh_timer
             running: root.state === "RUNNING"
-            repeat: true
+            repeat: false
             interval: 1
 
             onTriggered: {
-                var theUrl = "http://192.168.4.1";
-                var xmlHttp = null;
+                //root.stoppedTime = (root.last_button_pressed + root.buzzer_offset) - root.startTime
+                //console.log("STOPPED: "+root.stoppedTime)
+                //time.text = ( root.stoppedTime / 1000 ).toFixed(3) + " sec"
+                if(_cppBuzzerConn.buzzer_triggered()){
 
-                xmlHttp = new XMLHttpRequest();
-                xmlHttp.open( "GET", theUrl, false );
-                xmlHttp.send( null );
-                var response = xmlHttp.responseText
-                var res = response.split("<br>");
-                startButt.text = res[0]
-                if(res[1]>root.last_button_pressed){
-                    root.last_button_pressed = res[1]
-                    root.stoppedTime = (root.last_button_pressed + root.buzzer_offset) - root.startTime
-                    console.log("STOPPED: "+root.stoppedTime)
+                    root.buzzer_offset = _cppBuzzerConn.get("offset")
+                    root.last_button_pressed = _cppBuzzerConn.get("lastpressed")
+                    console.log(root.startTime);
+                    console.log(root.buzzer_offset);
+                    //root.stoppedTime = ( ( (root.last_button_pressed + root.buzzer_offset) - root.startTime ) / 2 ) / 10
+                    root.stoppedTime = new Date().getTime() - root.startTime
                     time.text = ( root.stoppedTime / 1000 ).toFixed(3) + " sec"
+                    console.log("STOPPED: "+root.stoppedTime)
                     root.state = "STOPPED"
                 }
+                if(root.state === "RUNNING"){
+                    running_refresh_timer.start()
+                }
             }
         }
 
@@ -73,8 +75,9 @@ Window {
 
             onPlayingChanged: {
                 if(!playing){
-                    root.startTime = new Date().getTime()
-                    root.currTime = new Date().getTime()
+                    root.startTime = _cppBuzzerConn.get("currtime")
+                    _cppBuzzerConn.start()
+                    root.currTime = _cppBuzzerConn.get("currtime")
                     time.text = ( ( root.currTime - root.startTime ) / 1000 ).toFixed(3) + " sec"
                     root.state = "RUNNING"
                 }