diff --git a/main.cpp b/main.cpp
index a9a28f6..bc109d8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -104,6 +104,7 @@ int main( int argc, char** argv )
     // 'connect_state' ist die Kurzform von
     // sigState.connect( &T::change_state, &listener );
     */
+
     /*
     pigBeeper beeper( bcm25 );
     std::vector<double> tnv = { 262.0, 294.0, 330.0, 262.0 };
@@ -115,8 +116,10 @@ int main( int argc, char** argv )
 
     //pigRotaryDial dial( pigpio::bcm17, pigpio::bcm27, pigpio::bcm22 );
     //pigRotaryDial dial( board17, board27, board22 );
-    pigRotaryDial dialA( bcm17, bcm27, bcm22 );
-    pigRotaryDial dialB( bcm16, bcm20, bcm21 );
+
+    // für die raDIYo-Verdrahtung:
+    pigRotaryDial dialA( bcm16, bcm20, bcm21 );
+    pigRotaryDial dialB( bcm05, bcm13, bcm06 );
 
     dialA.sigValue.connect( [&](int value){  cout << "Dial A: " << value << endl; } );
     dialB.sigValue.connect( [&](int value){  cout << "Dial B: " << value << endl; } );
@@ -127,13 +130,11 @@ int main( int argc, char** argv )
     pigSonar sonar( bcm21, bcm20 );
     sonar.sigValue.connect( [&](double dist){  buzzer.buzz( 100, dist*50 ); } );
     sonar.start( 20 );
-    */
 
-    /*
     while( loop )
     {
-        //double dist = sonar.distance();
-        //lcd.write( 0, 0, "Dist.: " + val2str( dist) + " cm" );
+        double dist = sonar.distance();
+        lcd.write( 0, 0, "Dist.: " + val2str( dist) + " cm" );
 
         if( dist < 20 )
         {
@@ -142,11 +143,6 @@ int main( int argc, char** argv )
         }
         delay_millis( 200 );
     }
-    */
-
-    /*
-
-
 
     bool loop = true;
     button.sigState.connect( [&](bool){ loop = false; } );
@@ -159,12 +155,12 @@ int main( int argc, char** argv )
 
     lcd.reset();
 
+    */
 
-*/
-
+    // don't return, just wait forever, handling callbacks
     wait_loop();
 
-
+    // alternatively, show button as widgets
     QApplication application( argc, argv );
     QtGPIOMain window;
     window.show();
diff --git a/pigrotarydial.cpp b/pigrotarydial.cpp
index 4ba2686..1c7f6c9 100644
--- a/pigrotarydial.cpp
+++ b/pigrotarydial.cpp
@@ -97,7 +97,7 @@ void pigRotaryDial::trigger( pigpio::bcm_t bcm, uint32_t level )
 
      if( bcm ==_pinIn.bcm  )
      {
-         std::cout << "pigButton::trigger " << (uint32_t) bcm << " : " << level << std::endl;
+         //std::cout << "pigButton::trigger " << (uint32_t) bcm << " : " << level << std::endl;
          // simply on/off
          toggle_state();
          return;
@@ -115,16 +115,14 @@ void pigRotaryDial::trigger( pigpio::bcm_t bcm, uint32_t level )
      {
          //std::cout << "dial: " << inc << std::endl;
          _oldState = newState;
-         //int detent = _step / 4;
+         //int detent = _value / 4;
          _value += inc;
 
          //if( detent != ( _step / 4) )
          //    handlePulse( _step / 4 );
          //handlePulse( _step );
 
-         /// gültigkeit sicherstellen
-         //_step = qBound( 0, _step, 100 );
-         //emit valueChanged( _step );
+
          sigValue( _value );
      }
 
diff --git a/pigrotarydial.h b/pigrotarydial.h
index 8910eed..fd180f0 100644
--- a/pigrotarydial.h
+++ b/pigrotarydial.h
@@ -31,7 +31,7 @@
 /**
  * @brief The pigRotaryDial class
  *
- * TODO: flags: step oder detent, inc/dec oder value, set_range range_stop: bis 100 oder 100->0
+ * TODO: flags: step oder detent, inc/dec oder value, set_range range_stop: until 100 or 100->0
  *
  */