Removed carousel card debug elements.

lib/enums/bluetooth_le_serial_uuid.dart

-import 'package:uuid/uuid.dart';
-
-class BtleUUID {
-  // TODO Function for service, characteristics parsing.
-  
-  static final List<int> bluetoothLeCc254xService = Uuid().parse("0000ffe0-0000-1000-8000-00805f9b34fb");
-}
\ No newline at end of file

lib/handlers/bluetooth_le_handler.dart

 import 'dart:async';
 import 'dart:io';
-import 'package:flutter/services.dart';
+
 import 'package:flutter_blue/flutter_blue.dart';
 import 'package:kotlin_flavor/scope_functions.dart';
 
-import 'package:logair_application/enums/platform_channels.dart';
 import 'package:logair_application/services/wake_service.dart';
 
 /// Serves as a wrapper class around [FlutterBlue], and helps integrate it into the application with extensions
 class BTLEHandler {
+  /// [Singleton]() instantiation factory.
+  factory BTLEHandler() => _singleton;
+
+  /// Internal static [Singleton]() reference.
   static final BTLEHandler _singleton = new BTLEHandler._internal();
-  static bool started = false;
+  
+  static bool wakeServiceActive = false;
   static bool serviceRegistered = false;
   static bool characteristicRegistered = false;
 
@@ -25,7 +29,6 @@ class BTLEHandler {
 
   FlutterBlue fblueInstance = FlutterBlue.instance;
 
-  factory BTLEHandler() => _singleton;
 
   BTLEHandler._internal() {
     fblueInstance.setLogLevel(LogLevel.info);
@@ -58,7 +61,6 @@ class BTLEHandler {
             success = true;
           }
         }
-        
     }
     return success;
   }
@@ -68,25 +70,24 @@ class BTLEHandler {
       _characteristic.value.transform(
         new StreamTransformer.fromHandlers(
           handleData: (List<int> list, EventSink<List<int>> sink) {
-                        if (list.isNotEmpty)
-                          sink.add(list);
-                        else
-                          sink.add([]);
+            if (list.isNotEmpty)
+              sink.add(list);
           }
         )
       ).listen((event) { 
-        print("Got something");
-        partialData += String.fromCharCodes(event); 
+        _partialData += event; 
       });
-    }
+      return true;
+    } else 
+      return false;
   }
 
-  String partialData = "";
+  List<int> _partialData = [];
 
-  Stream<String> getData() async* {
+  Stream<List<int>> getData() async* {
     while(true) {
-      String temp = partialData;
-      partialData = "";
+      List<int> temp = _partialData;
+      _partialData = [];
       yield temp;
       await Future.delayed(Duration(milliseconds: 500));
     }
@@ -111,6 +112,7 @@ class BTLEHandler {
 
   Future<dynamic> disconnect() => this._device?.let((it) {
     _device = null;
+    _characteristic = null;
     return it.disconnect();
   });
 
@@ -121,22 +123,23 @@ class BTLEHandler {
   setDevice(BluetoothDevice device) => device?.let((it) => this._device = it);
 
   bool switchState() {
-    if (started)
+    if (wakeServiceActive)
       _end();
     else
       _start();
   
-    return started;
+    return wakeServiceActive;
   }
 
   void _start() {
     WakeService().modifyWakeService(true).then((value) => print('_device will stay awake $value'));
-    started = true;
+    wakeServiceActive = true;
     t = new Timer.periodic(duration, (Timer t) => print("${new DateTime.now()}"));
   }
 
   void _end() {
     WakeService().modifyWakeService(false).then((value) => print('_device will stay awake $value'));
+    wakeServiceActive = false;
     t.cancel();
   }
   

lib/ui/carousel_card.dart

@@ -2,20 +2,19 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:logair_application/ui/base_widget.dart';
 
+/// Data / Functionality card in a multiple pane carousel.
 class CarouselCard extends StatelessWidget {
+  /// [Widget] displayed within the [CarouselCard], should be scrollable to accomodate smaller screens.
   final Widget child;
 
-  // TODO Used for visual debugging purposes, remove
-  final Color color;
-
-  CarouselCard({Key key, @required this.child, @required this.color}) : super(key: key);
+  CarouselCard({Key key, @required this.child}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return BaseWidget(
       builder: (context, sizingInfo) => new Container(
-        color: color,
         width: sizingInfo.localWidgetSize.width,
+        height: sizingInfo.localWidgetSize.height,
         padding: EdgeInsets.all(1),
         child: Container(
           decoration: BoxDecoration(
@@ -23,7 +22,9 @@ class CarouselCard extends StatelessWidget {
             border: Border.all(color: Colors.grey.shade500),
             borderRadius: BorderRadius.all(Radius.circular(4)),
           ),
-          child: child
+          child: SingleChildScrollView(
+            child: child
+          ),
         ),
       ),
     );

lib/ui/components/growing_text.dart

 import 'package:flutter/widgets.dart';
+
+class TextArea extends StatefulWidget {
+  TextArea({Key key}) : super(key: key);
+
+  @override
+  _TextAreaState createState() => _TextAreaState();
+}
+
+class _TextAreaState extends State<TextArea> {
+  _TextAreaState();
+
+  String data = "";
+
+  @override
+  Widget build(BuildContext context) {
+    return Text(data);
+  }
+
+  append(String add) {
+    setState(() => this.data += add);
+  }
+}
\ No newline at end of file

lib/ui/data_widget.dart

 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
-import 'package:flutter_blue/flutter_blue.dart';
-import 'package:logair_application/enums/bluetooth_le_serial_uuid.dart';
 
 import 'package:logair_application/handlers/bluetooth_le_handler.dart';
 import 'package:logair_application/ui/carousel_card.dart';
@@ -46,15 +44,14 @@ class DataWidget extends StatelessWidget {
                 return Text("Not connected");
             },
           ),
-          StreamBuilder<String>(
+          StreamBuilder<List<int>>(
             stream: BTLEHandler().getData(),
-            initialData: "",
+            initialData: [],
             builder: (context, snapshot) {
-              String data = snapshot.data;
-              print("Data = " + data);
+              List<int> data = snapshot.data;
+              
               if (data != null && data.length > 0) {
-                print ((new DateTime.now().millisecondsSinceEpoch.toString()) + " : " + data);
-                return Text(data);
+                return Text(String.fromCharCodes(data));
               } else
                 return Text("No data streaming");
             },
@@ -62,6 +59,6 @@ class DataWidget extends StatelessWidget {
         ]
       ),
     );
-    return CarouselCard(child: widget, color: Colors.green);
+    return CarouselCard(child: widget);
   }
 }
\ No newline at end of file

lib/ui/map_widget.dart

@@ -19,6 +19,6 @@ class MapWidget extends StatelessWidget {
       )
     );
 
-    return CarouselCard(child: widget, color: Colors.red);
+    return CarouselCard(child: widget);
   } 
 }
\ No newline at end of file

lib/ui/social_widget.dart

@@ -19,6 +19,6 @@ class SocialWidget extends StatelessWidget {
       ),
     );
 
-    return CarouselCard(child: widget, color: Colors.yellow);
+    return CarouselCard(child: widget);
   } 
 }
\ No newline at end of file