signiture, fixes, console (broken), states

.gitignore

@@ -42,3 +42,6 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+key.properties
+/key

android/app/build.gradle

@@ -51,11 +51,26 @@ android {
         versionName flutterVersionName
     }
 
+    def keystoreProperties = new Properties()
+    def keystorePropertiesFile = rootProject.file('key.properties')
+    if (keystorePropertiesFile.exists()) {
+        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+    }
+
+    signingConfigs {
+       release {
+           keyAlias keystoreProperties['keyAlias']
+           keyPassword keystoreProperties['keyPassword']
+           storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+           storePassword keystoreProperties['storePassword']
+       }
+   }
+
     buildTypes {
         release {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
+            signingConfig signingConfigs.release
         }
     }
 }

lib/boxes/console.dart

@@ -0,0 +1,228 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:intl/intl.dart';
+import 'package:ju_rc_app/lib/boxes.dart';
+import 'package:ju_rc_app/lib/serial.dart';
+
+class SerialBox extends JuBox {
+  const SerialBox({super.key});
+
+  @override
+  State<StatefulWidget> createState() => _SerialBoxState();
+}
+
+class _SerialBoxState extends State<SerialBox> {
+  USerial serial = getSerial();
+  final ScrollController _controller = ScrollController();
+
+  @override
+  void initState() {
+    super.initState();
+    serial.listen(serialListen);
+  }
+
+  @override
+  void dispose() {
+    serial.removeListen(serialListen);
+    super.dispose();
+  }
+
+  void serialListen(String line, SerialCommand? _) {
+    setState(() {
+      //change serial lines
+      _controller.jumpTo(_controller.position.maxScrollExtent);
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) => GestureDetector(
+      onTap: () {
+        Navigator.push(
+          context,
+          MaterialPageRoute(builder: (context) => const SerialDetailPage()),
+        );
+      },
+      child: ListView(
+        controller: _controller,
+        shrinkWrap: false,
+        physics: const NeverScrollableScrollPhysics(),
+        children: serial.lines
+            .last(20)
+            .map(
+              (e) => Row(
+                children: [
+                  Padding(
+                    padding: const EdgeInsets.all(0.0),
+                    child: Icon(e.$1 != SerialMessageType.received
+                        ? Icons.arrow_left
+                        : Icons.arrow_right),
+                  ),
+                  Expanded(
+                    child: Text(
+                      e.$3,
+                      overflow: TextOverflow.ellipsis,
+                      maxLines: 1,
+                    ),
+                  ),
+                ],
+              ),
+            )
+            .toList(),
+      ));
+}
+
+class SerialDetailPage extends StatefulWidget {
+  const SerialDetailPage({super.key});
+
+  @override
+  State<StatefulWidget> createState() => _SerialDetailPageState();
+}
+
+class _SerialDetailPageState extends State<SerialDetailPage> {
+  final ScrollController _controller = ScrollController();
+  USerial serial = getSerial();
+  bool jump = true;
+  final List<String> _messages = [];
+  int messageIndex = 0;
+  final TextEditingController _textController = TextEditingController();
+  FocusNode fc = FocusNode();
+  FocusNode _textFocus = FocusNode();
+
+  @override
+  void initState() {
+    super.initState();
+    serial.listen(serialListen);
+    fc.requestFocus();
+  }
+
+  @override
+  void dispose() {
+    serial.removeListen(serialListen);
+    _textController.dispose();
+    _controller.dispose();
+    super.dispose();
+  }
+
+  void serialListen(String line, SerialCommand? _) {
+    if (!jump) return;
+    setState(() {
+      //change serial lines
+      _controller.jumpTo(_controller.position.maxScrollExtent);
+    });
+  }
+
+  void submit() {
+    if (_textController.text.isNotEmpty) {
+      setState(() {
+        serial.sprintln(_textController.text);
+        _messages.add(_textController.text);
+        messageIndex = _messages.length;
+        _textController.clear();
+      });
+      _textFocus.requestFocus();
+    }
+  }
+
+  void _handleKeyEvent(RawKeyEvent event) {
+    if (event.runtimeType.toString() == 'RawKeyDownEvent') {
+      if (event.logicalKey == LogicalKeyboardKey.arrowUp) {
+        if (messageIndex > 0) {
+          setState(() {
+            messageIndex--;
+            print("up: " + _messages[messageIndex]);
+            _textController.text = _messages[messageIndex];
+          });
+        }
+      } else if (event.logicalKey == LogicalKeyboardKey.arrowDown) {
+        if (messageIndex >= _messages.length - 1) {
+          setState(() {
+            print("clear");
+            messageIndex = _messages.length;
+            _textController.clear();
+            _textFocus.requestFocus();
+          });
+        } else {
+          setState(() {
+            messageIndex++;
+            print("down: " + _messages[messageIndex]);
+            _textController.text = _messages[messageIndex];
+            _textFocus.requestFocus();
+          });
+        }
+      }
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+        appBar: AppBar(
+          backgroundColor: Theme.of(context).colorScheme.inversePrimary,
+          title: const Text(
+            "Serial Console",
+            style: TextStyle(
+              fontSize: 16,
+            ),
+          ),
+          toolbarHeight: 40,
+        ),
+        body: Column(
+          children: [
+            Expanded(
+                child: ListView(
+              controller: _controller,
+              children: serial.lines.items
+                  .map(
+                    (e) => Row(
+                      children: [
+                        Text(DateFormat('HH:mm:ss.S').format(e.$2)),
+                        Padding(
+                          padding: const EdgeInsets.all(0.0),
+                          child: Icon(e.$1 != SerialMessageType.received
+                              ? Icons.arrow_left
+                              : Icons.arrow_right),
+                        ),
+                        Expanded(
+                          child: Text(
+                            e.$3,
+                            overflow: TextOverflow.ellipsis,
+                            maxLines: 1,
+                          ),
+                        ),
+                      ],
+                    ),
+                  )
+                  .toList(),
+            )),
+            RawKeyboardListener(
+                focusNode: fc,
+                autofocus: true,
+                onKey: _handleKeyEvent,
+                child: Padding(
+                  padding: const EdgeInsets.fromLTRB(8.0, 0, 8.0, 8.0),
+                  child: Row(
+                    children: <Widget>[
+                      Expanded(
+                        child: TextField(
+                          focusNode: _textFocus,
+                          controller: _textController,
+                          autofocus: true,
+                          decoration: const InputDecoration(
+                            hintText: 'Enter a Command',
+                          ),
+                          onSubmitted: (_) {
+                            submit();
+                          },
+                        ),
+                      ),
+                      IconButton(
+                        icon: const Icon(Icons.send),
+                        onPressed: submit,
+                      ),
+                    ],
+                  ),
+                ))
+          ],
+        ));
+  }
+}

lib/boxes/state.dart

@@ -0,0 +1,84 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:ju_rc_app/lib/boxes.dart';
+import 'package:ju_rc_app/lib/serial.dart';
+
+class ControllerState extends JuBox {
+  const ControllerState({super.key});
+
+  @override
+  State<StatefulWidget> createState() => _ControllerStateState();
+}
+
+class _ControllerStateState extends State<ControllerState> {
+  USerial serial = getSerial();
+  late Timer timer;
+
+  int connected = 0;
+  bool mode = false; //true is ble
+  int arc = 0;
+  double akku = 0.1;
+
+  @override
+  void initState() {
+    super.initState();
+    serial.listen(serialListen);
+    timer = Timer.periodic(const Duration(seconds: 1), (_) async {
+      serial.sprintln("<ping>", system: true);
+      connected--;
+      serial.sprintln("<getSendMode>", system: true);
+      serial.sprintln("<getVoltage>", system: true);
+      serial.sprintln("<getRfArc>", system: true);
+    });
+  }
+
+  @override
+  void dispose() {
+    serial.removeListen(serialListen);
+    timer.cancel();
+    super.dispose();
+  }
+
+  void serialListen(String line, SerialCommand? cmdo) {
+    if (cmdo == null) return;
+    var cmd = cmdo;
+    setState(() {
+      if (cmd.command == "pong") connected = 2;
+      if (cmd.command == "sendMode") {
+        if (cmd.arg == "RF") {
+          mode = false;
+        } else if (cmd.arg == "BLE") {
+          mode = true;
+        }
+      }
+      if(cmd.command == "rfArc"){
+        arc = int.tryParse(cmd.arg) ?? 15;
+      }
+      if(cmd.command == "voltage"){
+        akku = double.tryParse(cmd.arg) ?? 0.0;
+      }
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) => Column(
+        children: [
+          const Text("Remote controll state"),
+          Text(
+              "Serial Connection: ${connected > 0 ? "connected" : "disconnected"}"),
+          Row(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              const Text("RC Mode: "),
+              if (mode)
+                const Icon(Icons.bluetooth)
+              else
+                const Icon(Icons.settings_input_antenna)
+            ],
+          ),
+          Text("ARC: $arc"),
+          Text("Akku: ${akku}V")
+        ],
+      );
+}

lib/connector.dart

@@ -3,33 +3,39 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:ju_rc_app/lib/serial.dart';
 
+// ignore: must_be_immutable
 class ConnectionBar extends StatefulWidget {
-  const ConnectionBar({super.key});
+  USerial serial = getSerial();
+  ConnectionBar({super.key});
 
   @override
-  ConnectionBarState createState() => ConnectionBarState();
+  // ignore: library_private_types_in_public_api
+  _ConnectionBarState createState() => _ConnectionBarState();
 }
 
-class ConnectionBarState extends State<ConnectionBar> {
+class _ConnectionBarState extends State<ConnectionBar> {
-  late USerial serial;
-  UPort? connectedTo;
-  List<UPort> _ports = [];
-  StateSetter? sheetsetstate;
   late Timer timer;
   String _status = "";
+  List<UPort> _ports = [];
+  StateSetter? sheetsetstate;
+  UPort? connectedTo;
 
-  ConnectionBarState() {
+  _ConnectionBarState() {
-    serial = getSerial();
-    serial.listen((line) {});
     timer = Timer.periodic(const Duration(seconds: 1), (_) async {
       if (sheetsetstate == null) return;
-      var ports = await serial.getPorts();
+      var ports = await widget.serial.getPorts();
       setState(() {
         _ports = ports;
       });
     });
   }
 
+  @override
+  void dispose() {
+    timer.cancel();
+    super.dispose();
+  }
+
   @override
   void setState(VoidCallback fn) {
     super.setState(fn);
@@ -40,14 +46,15 @@ class ConnectionBarState extends State<ConnectionBar> {
 
   void showModal() async {
     if (connectedTo != null && connectedTo!.connected) {
-      await serial.disconnect();
+      await widget.serial.disconnect();
       setState(() {
         connectedTo = null;
       });
     } else {
-      var ports = await serial.getPorts();
+      var ports = await widget.serial.getPorts();
       setState(() {
         _ports = ports;
+        _status = "";
       });
       // ignore: use_build_context_synchronously
       showModalBottomSheet(
@@ -56,6 +63,7 @@ class ConnectionBarState extends State<ConnectionBar> {
                   builder: (BuildContext context, StateSetter setStateM) {
                 sheetsetstate = setStateM;
                 return BottomSheet(
+                  enableDrag: false,
                   builder: (context) => Column(children: [
                     Padding(
                         padding: const EdgeInsets.all(8),
@@ -80,13 +88,13 @@ class ConnectionBarState extends State<ConnectionBar> {
                               Text(port.connected ? "Disconnect" : "Connect"),
                           onPressed: () async {
                             if (port.connected) {
-                              await serial.disconnect();
+                              await widget.serial.disconnect();
                               setState(() {
                                 connectedTo = null;
                                 _status = "Successfully disconnected!";
                               });
                             } else {
-                              if (await serial.connect(port)) {
+                              if (await widget.serial.connect(port)) {
                                 setState(() {
                                   connectedTo = port;
                                   _status = "Successfully connected!";
@@ -97,7 +105,7 @@ class ConnectionBarState extends State<ConnectionBar> {
                                 });
                               }
                             }
-                            var ports = await serial.getPorts();
+                            var ports = await widget.serial.getPorts();
                             setState(() {
                               _ports = ports;
                             });

lib/lib/boxes.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+
+class SerialCommand {
+  String command;
+  String arg;
+  SerialCommand(this.command, this.arg);
+
+  static SerialCommand? parse(String line) {
+    if (!line.startsWith("<")) return null;
+    int cend = line.indexOf(">");
+    if (cend < 0) return null;
+    return SerialCommand(
+        line.substring(1, cend), line.substring(cend + 1).replaceAll("\r", ""));
+  }
+}
+
+abstract class JuBox extends StatefulWidget {
+  const JuBox({super.key});
+}

lib/lib/serial.dart

@@ -1,11 +1,33 @@
 import 'dart:async';
 import 'dart:io';
+import 'dart:math';
 import 'dart:typed_data';
 
 import 'package:flutter_libserialport/flutter_libserialport.dart';
+import 'package:ju_rc_app/lib/boxes.dart';
 import 'package:usb_serial/transaction.dart';
 import 'package:usb_serial/usb_serial.dart';
 
+enum SerialMessageType { systemSend, userSend, received }
+
+class LimitedList<T> {
+  final int maxLength;
+  final List<T> _items = [];
+
+  LimitedList(this.maxLength);
+
+  void add(T item) {
+    if (_items.length >= maxLength) {
+      _items.removeAt(0);
+    }
+    _items.add(item);
+  }
+
+  List<T> last(int len) => _items.sublist(max(0, _items.length - len));
+
+  List<T> get items => _items;
+}
+
 abstract class UPort {
   String productName;
   String manufacturerName;
@@ -17,33 +39,48 @@ abstract class USerial {
   Future<List<UPort>> getPorts();
   Future<bool> connect(UPort port);
   Future<void> disconnect();
-  Future<bool> sprint(String data);
+  Future<bool> _sprint(String data);
-  Future<bool> sprintln(String data) {
+  Future<bool> sprintln(String data, {bool system = false}) {
-    return sprint("$data\n");
+    lines.add((
+      system ? SerialMessageType.systemSend : SerialMessageType.userSend,
+      DateTime.now(),
+      data
+    ));
+    return _sprint("$data\n");
   }
 
-  List<String> lines = [];
+  LimitedList<(SerialMessageType, DateTime, String)> lines =
-  Function(String)? _callback;
+      LimitedList(524288);
+  final List<Function(String, SerialCommand?)> _callback = [];
   void _receive(String line) {
-    lines.add(line);
+    lines.add((SerialMessageType.received, DateTime.now(), line));
-    if (_callback != null) {
+    var parsed = SerialCommand.parse(line);
-      _callback!(line);
+    for (var f in _callback) {
+      f(line, parsed);
     }
   }
 
-  void listen(Function(String) callback) {
+  void listen(Function(String, SerialCommand?) callback) {
-    _callback = callback;
+    _callback.add(callback);
+  }
+
+  void removeListen(Function(String, SerialCommand?) callback) {
+    _callback.remove(callback);
   }
 }
 
+USerial? _serial;
+
 USerial getSerial() {
+  if (_serial != null) return _serial as USerial;
   if (Platform.isAndroid) {
-    return USerialAndroid();
+    _serial = USerialAndroid();
   } else if (Platform.isLinux || Platform.isWindows || Platform.isMacOS) {
-    return USerialPC();
+    _serial = USerialPC();
   } else {
     throw UnimplementedError();
   }
+  return _serial as USerial;
 }
 
 class UPortAndroid extends UPort {
@@ -110,7 +147,7 @@ class USerialAndroid extends USerial {
         115200, UsbPort.DATABITS_8, UsbPort.STOPBITS_1, UsbPort.PARITY_NONE);
 
     _transaction = Transaction.stringTerminated(
-        _port!.inputStream as Stream<Uint8List>, Uint8List.fromList([13, 10]));
+        _port!.inputStream as Stream<Uint8List>, Uint8List.fromList([10]));
 
     _subscription = _transaction!.stream.listen((String line) {
       _receive(line);
@@ -140,7 +177,7 @@ class USerialAndroid extends USerial {
   }
 
   @override
-  Future<bool> sprint(String data) async {
+  Future<bool> _sprint(String data) async {
     if (_port == null) return false;
     await _port!.write(Uint8List.fromList(data.codeUnits));
     return true;
@@ -205,7 +242,7 @@ class USerialPC extends USerial {
       _reader = SerialPortReader(_port!);
 
       _transaction = Transaction.stringTerminated(
-          _reader!.stream, Uint8List.fromList([13, 10]));
+          _reader!.stream, Uint8List.fromList([10]));
 
       _subscription = _transaction!.stream.listen((line) {
         _receive(line);
@@ -245,7 +282,7 @@ class USerialPC extends USerial {
   }
 
   @override
-  Future<bool> sprint(String data) async {
+  Future<bool> _sprint(String data) async {
     try {
       if (_port == null) return false;
       _port!.write(Uint8List.fromList(data.codeUnits));

lib/main.dart

@@ -1,6 +1,10 @@
-import 'package:flutter/material.dart';
+import 'dart:io';
-import 'package:ju_rc_app/connector.dart';
 
+import 'package:flutter/material.dart';
+import 'package:ju_rc_app/boxes/console.dart';
+import 'package:ju_rc_app/boxes/state.dart';
+import 'package:ju_rc_app/connector.dart';
+import 'package:ju_rc_app/lib/boxes.dart';
 
 void main() {
   runApp(const MyApp());
@@ -14,8 +18,15 @@ class MyApp extends StatelessWidget {
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'JuRcApp',
+      themeMode: ThemeMode.system,
       theme: ThemeData(
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        //colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        brightness: Brightness.light,
+        useMaterial3: true,
+      ),
+      darkTheme: ThemeData(
+        //colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
+        brightness: Brightness.dark,
         useMaterial3: true,
       ),
       home: const MyHomePage(title: 'App for juRc'),
@@ -32,37 +43,59 @@ class MyHomePage extends StatefulWidget {
 }
 
 class _MyHomePageState extends State<MyHomePage> {
-  ConnectionBar conBar = const ConnectionBar();
+  ConnectionBar conBar = ConnectionBar();
 
+  static List<JuBox> boxes = [const SerialBox(), const ControllerState()];
 
   @override
   void initState() {
     super.initState();
-    setState(() {
+    setState(() {});
-      
-    });
-    
   }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
         backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        title: Text(widget.title),
+        title: Text(
+          widget.title,
+          style: const TextStyle(
+            fontSize: 16,
           ),
-      body: Center(
+        ),
-        child: Column(
+        toolbarHeight: 40,
-          mainAxisAlignment: MainAxisAlignment.start,
+      ),
-          children: <Widget>[
+      body: CustomScrollView(
-            conBar
+        slivers: [
+          SliverToBoxAdapter(
+            child: conBar,
+          ),
+          SliverPadding(
+              padding: const EdgeInsets.all(10.0),
+              sliver: SliverGrid.extent(
+                maxCrossAxisExtent:
+                    Platform.isAndroid || Platform.isIOS ? 300.0 : 600.0,
+                crossAxisSpacing: 10.0,
+                mainAxisSpacing: 10.0,
+                children: boxes
+                    .map((b) => Container(
+                          decoration: BoxDecoration(
+                            border: Border.all(
+                                width: 0,
+                                color: const Color.fromARGB(0, 0, 0, 0)),
+                            borderRadius: BorderRadius.circular(20.0),
+                            color: Theme.of(context)
+                                .colorScheme
+                                .secondaryContainer,
+                          ),
+                          padding: const EdgeInsets.all(0.3 * 2 * 20),
+                          child: b,
+                        ))
+                    .toList(),
+              )),
         ],
       ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: () {},
-        tooltip: 'Reload',
-        child: const Icon(Icons.replay),
-      ),
     );
   }
 }

pubspec.lock

@@ -69,10 +69,10 @@ packages:
     dependency: transitive
     description:
       name: collection
-      sha256: f092b211a4319e98e5ff58223576de6c2803db36221657b46c82574721240687
+      sha256: ee67cb0715911d28db6bf4af1026078bd6f0128b07a5f66fb2ed94ec6783c09a
       url: "https://pub.dev"
     source: hosted
-    version: "1.17.2"
+    version: "1.18.0"
   convert:
     dependency: transitive
     description:
@@ -192,6 +192,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.17"
+  intl:
+    dependency: "direct main"
+    description:
+      name: intl
+      sha256: "3bc132a9dbce73a7e4a21a17d06e1878839ffbf975568bc875c60537824b0c4d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.18.1"
   js:
     dependency: transitive
     description:
@@ -260,10 +268,10 @@ packages:
     dependency: transitive
     description:
       name: petitparser
-      sha256: cb3798bef7fc021ac45b308f4b51208a152792445cce0448c9a4ba5879dd8750
+      sha256: eeb2d1428ee7f4170e2bd498827296a18d4e7fc462b71727d111c0ac7707cfa6
       url: "https://pub.dev"
     source: hosted
-    version: "5.4.0"
+    version: "6.0.1"
   platform:
     dependency: transitive
     description:
@@ -321,18 +329,18 @@ packages:
     dependency: transitive
     description:
       name: stack_trace
-      sha256: c3c7d8edb15bee7f0f74debd4b9c5f3c2ea86766fe4178eb2a18eb30a0bdaed5
+      sha256: "73713990125a6d93122541237550ee3352a2d84baad52d375a4cad2eb9b7ce0b"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.11.1"
   stream_channel:
     dependency: transitive
     description:
       name: stream_channel
-      sha256: "83615bee9045c1d322bbbd1ba209b7a749c2cbcdcb3fdd1df8eb488b3279c1c8"
+      sha256: ba2aa5d8cc609d96bbb2899c28934f9e1af5cddbd60a827822ea467161eb54e7
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "2.1.2"
   string_scanner:
     dependency: transitive
     description:
@@ -353,10 +361,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "75760ffd7786fffdfb9597c35c5b27eaeec82be8edfb6d71d32651128ed7aab8"
+      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.0"
+    version: "0.6.1"
   typed_data:
     dependency: transitive
     description:
@@ -381,14 +389,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.4"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: dc8ccd225a2005c1be616fe02951e2e342092edf968cf0844220383757ef8f10
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.4-beta"
   xml:
     dependency: transitive
     description:
       name: xml
-      sha256: "5bc72e1e45e941d825fd7468b9b4cc3b9327942649aeb6fc5cdbf135f0a86e84"
+      sha256: af5e77e9b83f2f4adc5d3f0a4ece1c7f45a2467b695c2540381bac793e34e556
       url: "https://pub.dev"
     source: hosted
-    version: "6.3.0"
+    version: "6.4.2"
   yaml:
     dependency: transitive
     description:
@@ -398,5 +414,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.1.0-163.1.beta <4.0.0"
+  dart: ">=3.1.0-185.0.dev <4.0.0"
   flutter: ">=3.0.0"

pubspec.yaml

@@ -38,6 +38,7 @@ dependencies:
   flutter_libserialport: ^0.3.0
   usb_serial: ^0.5.1
   rive: ^0.11.16
+  intl: ^0.18.1
 
 dev_dependencies:
   flutter_test: