Multi items

hobu_doorbell/app.js

@@ -56,13 +56,11 @@ ai.on(Tinkerforge.BrickletAnalogInV2.CALLBACK_VOLTAGE,
   }
 );
 
-console.log('Press key to exit');
-process.stdin.on('data',
-    function (data) {
-        ipcon.disconnect();
-        process.exit(0);
-    }
-);
+process.on( 'SIGINT', function() {
+  console.log( "\nGracefully disconnect " + HOST );
+  ipcon.disconnect();
+  process.exit( );
+});
 
 
 /* private */