first Commit

Variable Axle Monitor App BLE : OK
2026-08-04 22:13:35 +09:00
commit e23b30605f
65 changed files with 2259 additions and 0 deletions
@@ -0,0 +1 @@
+/build
@@ -0,0 +1,58 @@
+plugins {
+    alias(libs.plugins.android.application)
+    alias(libs.plugins.kotlin.compose)
+}
+
+android {
+    namespace = "com.example.variableaxlemonitor"
+    compileSdk {
+        version = release(37)
+    }
+
+    defaultConfig {
+        applicationId = "com.example.variableaxlemonitor"
+        minSdk = 29
+        targetSdk = 37
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            optimization {
+                enable = false
+            }
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+    buildFeatures {
+        compose = true
+    }
+}
+
+dependencies {
+    implementation(platform(libs.androidx.compose.bom))
+    implementation(libs.androidx.activity.compose)
+    implementation(libs.androidx.compose.material3)
+    implementation(libs.androidx.compose.ui)
+    implementation(libs.androidx.compose.ui.graphics)
+    implementation(libs.androidx.compose.ui.tooling.preview)
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.lifecycle.runtime.ktx)
+    implementation(libs.androidx.lifecycle.viewmodel.compose)
+    implementation(libs.androidx.navigation.compose)
+    implementation(libs.androidx.compose.material.icons.extended)
+    implementation(libs.androidx.compose.material.icons.core)
+    testImplementation(libs.junit)
+    androidTestImplementation(platform(libs.androidx.compose.bom))
+    androidTestImplementation(libs.androidx.compose.ui.test.junit4)
+    androidTestImplementation(libs.androidx.espresso.core)
+    androidTestImplementation(libs.androidx.junit)
+    debugImplementation(libs.androidx.compose.ui.test.manifest)
+    debugImplementation(libs.androidx.compose.ui.tooling)
+}
@@ -0,0 +1,24 @@
+package com.example.variableaxlemonitor
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.variableaxlemonitor", appContext.packageName)
+    }
+}
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <uses-permission android:name="android.permission.BLUETOOTH" android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" android:maxSdkVersion="30" />
+    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" android:usesPermissionFlags="neverForLocation" />
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.VariableAxleMonitor">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.VariableAxleMonitor"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
@@ -0,0 +1,510 @@
+package com.example.variableaxlemonitor
+
+import android.Manifest
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.bluetooth.BluetoothDevice
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+import android.widget.Toast
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.GridItemSpan
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Bluetooth
+import androidx.compose.material.icons.filled.ExitToApp
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.TextUnit
+import androidx.compose.ui.window.Dialog
+import androidx.core.content.ContextCompat
+import androidx.lifecycle.viewmodel.compose.viewModel
+import androidx.navigation.NavController
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import com.example.variableaxlemonitor.ui.theme.VariableAxleMonitorTheme
+import com.example.variableaxlemonitor.viewmodel.AxleViewModel
+import kotlinx.coroutines.delay
+
+class MainActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContent {
+            VariableAxleMonitorTheme {
+                MainApp()
+            }
+        }
+    }
+}
+
+@Composable
+fun MainApp() {
+    val navController = rememberNavController()
+    val viewModel: AxleViewModel = viewModel()
+    val context = LocalContext.current
+
+    val permissions = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+        arrayOf(
+            Manifest.permission.BLUETOOTH_SCAN,
+            Manifest.permission.BLUETOOTH_CONNECT,
+            Manifest.permission.ACCESS_FINE_LOCATION,
+            Manifest.permission.ACCESS_COARSE_LOCATION
+        )
+    } else {
+        arrayOf(
+            Manifest.permission.BLUETOOTH,
+            Manifest.permission.BLUETOOTH_ADMIN,
+            Manifest.permission.ACCESS_FINE_LOCATION,
+            Manifest.permission.ACCESS_COARSE_LOCATION
+        )
+    }
+
+    val launcher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.RequestMultiplePermissions()
+    ) { results ->
+        if (results.values.all { it }) {
+            // Permissions granted
+        } else {
+            Toast.makeText(context, "Permissions required for Bluetooth", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        val missing = permissions.filter {
+            ContextCompat.checkSelfPermission(context, it) != PackageManager.PERMISSION_GRANTED
+        }
+        if (missing.isNotEmpty()) {
+            launcher.launch(missing.toTypedArray())
+        }
+    }
+
+    NavHost(navController = navController, startDestination = "login") {
+        composable("login") {
+            LoginScreen(navController, viewModel)
+        }
+        composable("monitoring") {
+            MonitoringScreen(viewModel)
+        }
+    }
+}
+
+@Composable
+fun LoginScreen(navController: NavController, viewModel: AxleViewModel) {
+    var user by remember { mutableStateOf("") }
+    var pass by remember { mutableStateOf("") }
+    val context = LocalContext.current
+    val loginSuccess by viewModel.loginSuccess
+
+    LaunchedEffect(loginSuccess) {
+        if (loginSuccess) {
+            navController.navigate("monitoring")
+        }
+    }
+
+    LaunchedEffect(Unit) {
+        viewModel.loginError.collect { error ->
+            Toast.makeText(context, error, Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    Column(
+        modifier = Modifier
+            .fillMaxSize()
+            .padding(16.dp),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.Center
+    ) {
+        Text("가변축 시스템", fontSize = 32.sp, fontWeight = FontWeight.Bold)
+        Spacer(modifier = Modifier.height(32.dp))
+        OutlinedTextField(
+            value = user,
+            onValueChange = { user = it },
+            label = { Text("User") },
+            modifier = Modifier.fillMaxWidth()
+        )
+        OutlinedTextField(
+            value = pass,
+            onValueChange = { pass = it },
+            label = { Text("Password") },
+            visualTransformation = PasswordVisualTransformation(),
+            modifier = Modifier.fillMaxWidth()
+        )
+        Spacer(modifier = Modifier.height(16.dp))
+        Button(
+            onClick = { viewModel.login(user, pass) },
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text("로그인")
+        }
+        Spacer(modifier = Modifier.height(8.dp))
+        TextButton(
+            onClick = { (context as? Activity)?.finishAffinity() },
+            modifier = Modifier.fillMaxWidth()
+        ) {
+            Text("앱 종료")
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@SuppressLint("DefaultLocale")
+@Composable
+fun MonitoringScreen(viewModel: AxleViewModel) {
+    val axleData by viewModel.axleData.collectAsState()
+    val isConnected by viewModel.isConnected.collectAsState()
+    var showDeviceDialog by remember { mutableStateOf(false) }
+    val context = LocalContext.current
+    var lastUpdate by remember { mutableStateOf("-") }
+    var receiveCount by remember { mutableIntStateOf(0) }
+    val timeFormatter = remember { SimpleDateFormat("HH:mm:ss", Locale.getDefault()) }
+
+    LaunchedEffect(viewModel) {
+        Log.d("MonitoringScreen", "ViewModel Instance: ${System.identityHashCode(viewModel)}")
+    }
+
+    LaunchedEffect(Unit) {
+        viewModel.dataReceivedTrigger.collect {
+            receiveCount++
+            lastUpdate = timeFormatter.format(Date())
+            Log.d("MonitoringScreen", "Data Received Trigger #$receiveCount at $lastUpdate")
+        }
+    }
+
+    LaunchedEffect(axleData) {
+        Log.d("MonitoringScreen", "UI Update: $axleData")
+    }
+
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { 
+                    Text("가변축 시스템 모니터링", fontSize = 32.sp, fontWeight = FontWeight.Bold)
+                },
+                actions = {
+                    IconButton(onClick = { showDeviceDialog = true }) {
+                        Icon(
+                            imageVector = Icons.Default.Bluetooth,
+                            contentDescription = "Bluetooth Status",
+                            tint = if (isConnected) Color.Green else Color.Red
+                        )
+                    }
+                }
+            )
+        }
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .padding(innerPadding)
+                .fillMaxSize()
+                .padding(8.dp)
+        ) {
+            LazyVerticalGrid(
+                columns = GridCells.Fixed(2),
+                modifier = Modifier.weight(1f),
+                contentPadding = PaddingValues(4.dp),
+                verticalArrangement = Arrangement.spacedBy(4.dp),
+                horizontalArrangement = Arrangement.spacedBy(4.dp)
+            ) {
+                // 1. 압력센서
+                item {
+                    MonitoringCard(
+                        title = "압력 센서",
+                        value = String.format(Locale.US, "%.1f kgf/cm²", axleData.pressure * 0.1f),
+                        iconRes = R.drawable.pressure_sensor,
+                        isBitmap = true
+                    )
+                }
+                // 2. 속도
+                item {
+                    MonitoringCard(
+                        title = "속도(Speed)",
+                        value = "${axleData.speed} km/h",
+                        iconRes = R.drawable.speed_display,
+                        isBitmap = true
+                    )
+                }
+                // 3. 가변축 하중
+                item {
+                    MonitoringCard(
+                        title = "가변축 하중",
+                        value = String.format(Locale.US, "%.3f ton", axleData.variableAxleLoad * 0.001f),
+                        iconRes = R.drawable.variable_axle_load,
+                        isBitmap = true,
+                        iconSize = 60.dp
+                    )
+                }
+                // 4. 구동축 하중
+                item {
+                    MonitoringCard(
+                        title = "구동축 하중",
+                        value = String.format(Locale.US, "%.3f ton", axleData.driveAxleLoad * 0.001f),
+                        iconRes = R.drawable.ic_axle_drive
+                    )
+                }
+                // 5. 가변축 상태
+                item {
+                    MonitoringCard(
+                        title = "가변축 상태",
+                        value = if (axleData.isDown) "가변축 Down" else "가변축 Up",
+                        iconRes = if (axleData.isDown) R.drawable.ic_axle_down else R.drawable.ic_axle_up
+                    )
+                }
+                // 6. 설정 및 종료
+                item {
+                    SystemCard(
+                        isConnected = isConnected,
+                        onBluetoothClick = { showDeviceDialog = true },
+                        onExitClick = { 
+                            viewModel.disconnect()
+                            (context as? Activity)?.finishAffinity() 
+                        },
+                        dataTrigger = viewModel.dataReceivedTrigger,
+                        modifier = Modifier.fillMaxWidth().aspectRatio(1.2f)
+                    )
+                }
+            }
+            
+            Spacer(modifier = Modifier.height(8.dp))
+            Text(
+                text = "마지막 데이터 수신: $lastUpdate",
+                modifier = Modifier.align(Alignment.End),
+                fontSize = 12.sp,
+                color = Color.Gray
+            )
+        }
+    }
+
+    if (showDeviceDialog) {
+        val devices by viewModel.foundDevices.collectAsState()
+        
+        DisposableEffect(Unit) {
+            viewModel.startScan()
+            onDispose {
+                viewModel.stopScan()
+            }
+        }
+
+        BluetoothDeviceDialog(
+            devices = devices,
+            onDeviceSelected = {
+                viewModel.connectToDevice(it)
+                showDeviceDialog = false
+            },
+            onDismiss = { showDeviceDialog = false }
+        )
+    }
+}
+
+@Composable
+fun MonitoringCard(
+    title: String,
+    value: String,
+    iconRes: Int,
+    modifier: Modifier = Modifier
+        .fillMaxWidth()
+        .aspectRatio(1.2f), // Slightly wider to accommodate text
+    isBitmap: Boolean = false,
+    iconSize: Dp = 50.dp, // Reduced default size
+    titleFontSize: TextUnit = 18.sp, // Reduced font size
+    valueFontSize: TextUnit = 22.sp, // Reduced font size
+    titleModifier: Modifier = Modifier,
+    valueModifier: Modifier = Modifier,
+    iconModifier: Modifier = Modifier
+) {
+    Card(
+        modifier = modifier,
+        shape = RoundedCornerShape(12.dp),
+        colors = CardDefaults.cardColors(containerColor = Color.White),
+        border = BorderStroke(1.dp, Color.LightGray)
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(8.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.Center
+        ) {
+            Text(
+                text = title, 
+                fontSize = titleFontSize, 
+                fontWeight = FontWeight.Bold,
+                color = Color.DarkGray,
+                modifier = titleModifier
+            )
+            Spacer(modifier = Modifier.height(4.dp))
+            if (isBitmap) {
+                Image(
+                    painter = painterResource(id = iconRes),
+                    contentDescription = title,
+                    modifier = iconModifier.size(iconSize)
+                )
+            } else {
+                Icon(
+                    painter = painterResource(id = iconRes),
+                    contentDescription = title,
+                    modifier = iconModifier.size(iconSize),
+                    tint = MaterialTheme.colorScheme.secondary
+                )
+            }
+            Spacer(modifier = Modifier.height(4.dp))
+            Text(
+                text = value, 
+                fontSize = valueFontSize, 
+                fontWeight = FontWeight.ExtraBold, 
+                color = Color.Blue,
+                modifier = valueModifier
+            )
+        }
+    }
+}
+
+@Composable
+fun SystemCard(
+    isConnected: Boolean,
+    onBluetoothClick: () -> Unit,
+    onExitClick: () -> Unit,
+    dataTrigger: kotlinx.coroutines.flow.SharedFlow<Unit>,
+    modifier: Modifier = Modifier
+        .fillMaxWidth()
+        .aspectRatio(1f),
+    topSectionModifier: Modifier = Modifier,
+    bottomSectionModifier: Modifier = Modifier
+) {
+    var isBlinking by remember { mutableStateOf(false) }
+
+    LaunchedEffect(Unit) {
+        dataTrigger.collect {
+            isBlinking = true
+            delay(200)
+            isBlinking = false
+        }
+    }
+
+    Card(
+        modifier = modifier,
+        shape = RoundedCornerShape(16.dp),
+        colors = CardDefaults.cardColors(containerColor = Color.White),
+        border = BorderStroke(1.dp, Color.DarkGray)
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(12.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+            verticalArrangement = Arrangement.SpaceBetween
+        ) {
+            Row(
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.Center,
+                modifier = topSectionModifier.fillMaxWidth()
+            ) {
+                Icon(
+                    imageVector = Icons.Default.Bluetooth,
+                    contentDescription = "Bluetooth",
+                    modifier = Modifier
+                        .size(32.dp)
+                        .clickable { onBluetoothClick() },
+                    tint = if (isConnected) Color.Green else Color.Red
+                )
+                Spacer(modifier = Modifier.width(8.dp))
+                Box(
+                    modifier = Modifier
+                        .size(16.dp)
+                        .clip(CircleShape)
+                        .background(if (isBlinking) Color.Green else Color.Transparent)
+                )
+            }
+            
+            Button(
+                onClick = onExitClick,
+                modifier = bottomSectionModifier,
+                colors = ButtonDefaults.buttonColors(containerColor = MaterialTheme.colorScheme.error)
+            ) {
+                Icon(Icons.Default.ExitToApp, contentDescription = null)
+                Spacer(modifier = Modifier.width(4.dp))
+                Text("종료")
+            }
+        }
+    }
+}
+
+@Composable
+fun BluetoothDeviceDialog(
+    devices: List<BluetoothDevice>,
+    onDeviceSelected: (BluetoothDevice) -> Unit,
+    onDismiss: () -> Unit
+) {
+    Dialog(onDismissRequest = onDismiss) {
+        Surface(
+            shape = RoundedCornerShape(16.dp),
+            color = MaterialTheme.colorScheme.surface
+        ) {
+            Column(modifier = Modifier.padding(16.dp)) {
+                Text("블루투스 기기 선택", fontSize = 20.sp, fontWeight = FontWeight.Bold)
+                Spacer(modifier = Modifier.height(16.dp))
+                LazyColumn {
+                    items(devices) { device ->
+                        @SuppressLint("MissingPermission")
+                        val deviceName = device.name ?: "알 수 없는 기기"
+                        val deviceAddress = device.address
+                        Column(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .clickable { onDeviceSelected(device) }
+                                .padding(vertical = 12.dp)
+                        ) {
+                            Text(text = deviceName, fontSize = 16.sp, fontWeight = FontWeight.SemiBold)
+                            Text(text = deviceAddress, fontSize = 12.sp, color = Color.Gray)
+                        }
+                        HorizontalDivider()
+                    }
+                }
+                if (devices.isEmpty()) {
+                    Text("주변 기기를 검색 중입니다...", modifier = Modifier.padding(vertical = 16.dp))
+                }
+                Spacer(modifier = Modifier.height(16.dp))
+                TextButton(onClick = onDismiss, modifier = Modifier.align(Alignment.End)) {
+                    Text("취소")
+                }
+            }
+        }
+    }
+}
@@ -0,0 +1,308 @@
+package com.example.variableaxlemonitor.bluetooth
+
+import android.annotation.SuppressLint
+import android.bluetooth.*
+import android.bluetooth.le.ScanCallback
+import android.bluetooth.le.ScanResult
+import android.content.Context
+import android.os.Build
+import android.os.Handler
+import android.os.Looper
+import android.util.Log
+import android.widget.Toast
+import com.example.variableaxlemonitor.data.AxleData
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
+import java.util.*
+
+class BluetoothManager(private val context: Context) {
+    private val TAG = "BluetoothManager"
+    private val androidBluetoothManager = context.getSystemService(Context.BLUETOOTH_SERVICE) as android.bluetooth.BluetoothManager
+    private val adapter: BluetoothAdapter? = androidBluetoothManager.adapter
+    private val scanner = adapter?.bluetoothLeScanner
+    
+    private val scope = CoroutineScope(Dispatchers.IO + SupervisorJob())
+
+    // ESP32 BLE UART Service & Characteristic UUIDs
+    private val SERVICE_UUID = UUID.fromString("6E400001-B5A3-F393-E0A9-E50E24DCCA9E")
+    private val RX_CHAR_UUID = UUID.fromString("6E400003-B5A3-F393-E0A9-E50E24DCCA9E")
+    private val CLIENT_CONFIG_DESCRIPTOR = UUID.fromString("00002902-0000-1000-8000-00805f9b34fb")
+
+    private val _isConnected = MutableStateFlow(false)
+    val isConnected: StateFlow<Boolean> = _isConnected
+
+    private val _lastMessage = MutableStateFlow("기기 선택 대기 중")
+    val lastMessage: StateFlow<String> = _lastMessage
+
+    private val _mtu = MutableStateFlow(23)
+    val mtu: StateFlow<Int> = _mtu
+
+    private val _axleData = MutableStateFlow(AxleData())
+    val axleData: StateFlow<AxleData> = _axleData
+
+    private val _dataReceivedTrigger = MutableSharedFlow<Unit>()
+    val dataReceivedTrigger: SharedFlow<Unit> = _dataReceivedTrigger
+
+    private val _foundDevices = MutableStateFlow<List<BluetoothDevice>>(emptyList())
+    val foundDevices: StateFlow<List<BluetoothDevice>> = _foundDevices
+
+    private var gatt: BluetoothGatt? = null
+    private val dataBuffer = StringBuilder()
+
+    private val scanCallback = object : ScanCallback() {
+        @SuppressLint("MissingPermission")
+        override fun onScanResult(callbackType: Int, result: ScanResult) {
+            val device = result.device
+            if (device.name != null) {
+                val currentList = _foundDevices.value
+                if (currentList.none { it.address == device.address }) {
+                    _foundDevices.value = currentList + device
+                }
+            }
+        }
+    }
+
+    private val gattCallback = object : BluetoothGattCallback() {
+        @SuppressLint("MissingPermission")
+        override fun onConnectionStateChange(gatt: BluetoothGatt, status: Int, newState: Int) {
+            Log.d(TAG, "onConnectionStateChange: status=$status, newState=$newState")
+            if (status == BluetoothGatt.GATT_SUCCESS) {
+                if (newState == BluetoothProfile.STATE_CONNECTED) {
+                    _lastMessage.value = "GATT 연결 성공. MTU 요청 중..."
+                    Log.d(TAG, "Connected to GATT server. Requesting MTU...")
+                    Handler(Looper.getMainLooper()).post {
+                        Toast.makeText(context, "블루투스 기기에 연결되었습니다.", Toast.LENGTH_SHORT).show()
+                    }
+                    gatt.requestMtu(512)
+                } else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
+                    _lastMessage.value = "기기 연결 끊김"
+                    Log.d(TAG, "Disconnected from GATT server.")
+                    _isConnected.value = false
+                    this@BluetoothManager.gatt?.close()
+                    this@BluetoothManager.gatt = null
+                }
+            } else {
+                _lastMessage.value = "연결 오류 (status=$status)"
+                Log.e(TAG, "GATT error: status=$status")
+                _isConnected.value = false
+                gatt.close()
+                this@BluetoothManager.gatt = null
+            }
+        }
+
+        @SuppressLint("MissingPermission")
+        override fun onMtuChanged(gatt: BluetoothGatt, mtu: Int, status: Int) {
+            Log.d(TAG, "onMtuChanged: mtu=$mtu, status=$status")
+            _mtu.value = mtu
+            _lastMessage.value = "MTU 설정 완료 ($mtu). 서비스 검색 시작..."
+            // Discover services after MTU is set
+            gatt.discoverServices()
+        }
+
+        @SuppressLint("MissingPermission")
+        override fun onServicesDiscovered(gatt: BluetoothGatt, status: Int) {
+            Log.d(TAG, "onServicesDiscovered: status=$status")
+            if (status == BluetoothGatt.GATT_SUCCESS) {
+                _lastMessage.value = "서비스 발견 성공. 특성 찾는 중..."
+                var foundTarget = false
+                val service = gatt.getService(SERVICE_UUID)
+                val characteristic = service?.getCharacteristic(RX_CHAR_UUID)
+                
+                if (characteristic != null) {
+                    _lastMessage.value = "UART 특성 발견. 구독 설정 중..."
+                    enableNotifications(gatt, characteristic)
+                    foundTarget = true
+                } else {
+                    Log.w(TAG, "Target UART UUID not found. Searching for any Notify characteristic...")
+                    for (srv in gatt.services) {
+                        for (char in srv.characteristics) {
+                            if ((char.properties and BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) {
+                                Log.d(TAG, "Found Notify characteristic: ${char.uuid} in service ${srv.uuid}")
+                                _lastMessage.value = "대체 특성 발견. 구독 설정 중..."
+                                enableNotifications(gatt, char)
+                                foundTarget = true
+                                break
+                            }
+                        }
+                        if (foundTarget) break
+                    }
+                }
+                
+                if (foundTarget) {
+                    _isConnected.value = true
+                } else {
+                    _lastMessage.value = "데이터 수신 특성을 찾을 수 없음"
+                    Log.e(TAG, "No suitable Notify characteristic found on device.")
+                }
+            } else {
+                _lastMessage.value = "서비스 발견 실패 (status=$status)"
+            }
+        }
+
+        override fun onCharacteristicChanged(gatt: BluetoothGatt, characteristic: BluetoothGattCharacteristic, value: ByteArray) {
+            processReceivedData(value)
+        }
+
+        @Deprecated("Deprecated in Java")
+        override fun onCharacteristicChanged(gatt: BluetoothGatt, characteristic: BluetoothGattCharacteristic) {
+            @Suppress("DEPRECATION")
+            processReceivedData(characteristic.value)
+        }
+
+        override fun onDescriptorWrite(gatt: BluetoothGatt, descriptor: BluetoothGattDescriptor, status: Int) {
+            Log.d(TAG, "onDescriptorWrite: status=$status, descriptor=${descriptor.uuid}")
+            if (status == BluetoothGatt.GATT_SUCCESS) {
+                _lastMessage.value = "통신 준비 완료. 데이터 수신 대기 중..."
+            } else {
+                _lastMessage.value = "구독 설정 실패 (status=$status)"
+            }
+        }
+    }
+
+    private fun processReceivedData(value: ByteArray?) {
+        if (value == null) return
+        
+        val received = String(value)
+        // Log.d(TAG, "Raw Data (String): $received")
+        
+        synchronized(dataBuffer) {
+            dataBuffer.append(received)
+            
+            // Check for various delimiters including literal strings like "\r\n" or "\r\"
+            val delimiters = listOf("\r\n", "\\r\\n", "\\r\\", "\n", "\r")
+            
+            var foundDelimiter = true
+            while (foundDelimiter) {
+                foundDelimiter = false
+                var earliestIndex = Int.MAX_VALUE
+                var selectedDelimiter = ""
+                
+                for (delim in delimiters) {
+                    val index = dataBuffer.indexOf(delim)
+                    if (index != -1 && index < earliestIndex) {
+                        earliestIndex = index
+                        selectedDelimiter = delim
+                        foundDelimiter = true
+                    }
+                }
+                
+                if (foundDelimiter) {
+                    val line = dataBuffer.substring(0, earliestIndex).trim()
+                    dataBuffer.delete(0, earliestIndex + selectedDelimiter.length)
+                    
+                    if (line.isNotEmpty()) {
+                        Log.d(TAG, "Extracted line: '$line'")
+                        // _lastMessage.value = "데이터 수집 중: $line"
+                        scope.launch {
+                            parseData(line)
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    @SuppressLint("MissingPermission")
+    private fun enableNotifications(gatt: BluetoothGatt, characteristic: BluetoothGattCharacteristic) {
+        val success = gatt.setCharacteristicNotification(characteristic, true)
+        Log.d(TAG, "setCharacteristicNotification(${characteristic.uuid}) success: $success")
+        
+        val descriptor = characteristic.getDescriptor(CLIENT_CONFIG_DESCRIPTOR)
+        if (descriptor != null) {
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                gatt.writeDescriptor(descriptor, BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE)
+            } else {
+                @Suppress("DEPRECATION")
+                descriptor.value = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE
+                @Suppress("DEPRECATION")
+                gatt.writeDescriptor(descriptor)
+            }
+            Log.d(TAG, "Writing Descriptor to enable Notifications for ${characteristic.uuid}")
+        } else {
+            Log.e(TAG, "Client Config Descriptor not found for ${characteristic.uuid}")
+        }
+    }
+
+    @SuppressLint("MissingPermission")
+    fun startScan() {
+        Log.d(TAG, "Starting BLE scan...")
+        _foundDevices.value = emptyList()
+        scanner?.startScan(scanCallback)
+    }
+
+    @SuppressLint("MissingPermission")
+    fun stopScan() {
+        Log.d(TAG, "Stopping BLE scan.")
+        scanner?.stopScan(scanCallback)
+    }
+
+    @SuppressLint("MissingPermission")
+    fun connect(device: BluetoothDevice) {
+        Log.d(TAG, "Connecting to ${device.address} via TRANSPORT_LE")
+        stopScan()
+        disconnect()
+        gatt = device.connectGatt(context, false, gattCallback, BluetoothDevice.TRANSPORT_LE)
+    }
+
+    private suspend fun parseData(line: String) {
+        // Remove any non-numeric/comma characters except dots and minus
+        val cleaned = line.replace(Regex("[^0-9,.-]"), "")
+        if (cleaned.isEmpty()) return
+        Log.d(TAG, "Parsing Cleaned Line: '$cleaned'")
+        
+        val parts = cleaned.split(",").filter { it.isNotEmpty() }.map { it.trim() }
+        if (parts.size >= 5) {
+            try {
+                val pRawStr = parts[0]
+                val sRawStr = parts[1]
+                val vRawStr = parts[2]
+                val dRawStr = parts[3]
+                val iRawStr = parts[4]
+                
+                Log.d(TAG, "Part Strings: P=$pRawStr, S=$sRawStr, V=$vRawStr, D=$dRawStr, I=$iRawStr")
+
+                // Parse as Int first as requested by user
+                val pInt = pRawStr.toIntOrNull() ?: 0
+                val sInt = sRawStr.toIntOrNull() ?: 0
+                val vInt = vRawStr.toIntOrNull() ?: 0
+                val dInt = dRawStr.toIntOrNull() ?: 0
+                val iInt = iRawStr.toIntOrNull() ?: 0
+
+                val data = AxleData(
+                    pressure = pInt,
+                    speed = sInt,
+                    variableAxleLoad = vInt,
+                    driveAxleLoad = dInt,
+                    isDown = iInt == 1,
+                    timestamp = System.currentTimeMillis()
+                )
+                
+                Log.d(TAG, "Successfully Parsed Raw Data: $data")
+                
+                // Use update block for better StateFlow awareness
+                _axleData.update { data }
+                
+                // Update on Main thread to ensure UI recomposition
+                withContext(Dispatchers.Main) {
+                    _dataReceivedTrigger.emit(Unit)
+                }
+            } catch (e: Exception) {
+                Log.e(TAG, "Parse error: ${e.message} in '$cleaned'")
+            }
+        } else {
+            Log.w(TAG, "Incomplete data parts (${parts.size}): $cleaned")
+        }
+    }
+
+    @SuppressLint("MissingPermission")
+    fun disconnect() {
+        Log.d(TAG, "Disconnecting GATT")
+        gatt?.disconnect()
+        _isConnected.value = false
+    }
+}
@@ -0,0 +1,10 @@
+package com.example.variableaxlemonitor.data
+
+data class AxleData(
+    val pressure: Int = 0,           // Raw Int (e.g., 20)
+    val speed: Int = 0,              // Raw Int (e.g., 30)
+    val variableAxleLoad: Int = 0,   // Raw Int (e.g., 3500)
+    val driveAxleLoad: Int = 0,      // Raw Int (e.g., 6500)
+    val isDown: Boolean = false,     // 0 -> Up, 1 -> Down
+    val timestamp: Long = 0L         // For ensuring UI update on same data
+)
@@ -0,0 +1,11 @@
+package com.example.variableaxlemonitor.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
@@ -0,0 +1,58 @@
+package com.example.variableaxlemonitor.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+    primary = Purple80,
+    secondary = PurpleGrey80,
+    tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+    primary = Purple40,
+    secondary = PurpleGrey40,
+    tertiary = Pink40
+
+    /* Other default colors to override
+    background = Color(0xFFFFFBFE),
+    surface = Color(0xFFFFFBFE),
+    onPrimary = Color.White,
+    onSecondary = Color.White,
+    onTertiary = Color.White,
+    onBackground = Color(0xFF1C1B1F),
+    onSurface = Color(0xFF1C1B1F),
+    */
+)
+
+@Composable
+fun VariableAxleMonitorTheme(
+    darkTheme: Boolean = isSystemInDarkTheme(),
+    // Dynamic color is available on Android 12+
+    dynamicColor: Boolean = true,
+    content: @Composable () -> Unit
+) {
+    val colorScheme = when {
+        dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+            val context = LocalContext.current
+            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+        }
+
+        darkTheme -> DarkColorScheme
+        else -> LightColorScheme
+    }
+
+    MaterialTheme(
+        colorScheme = colorScheme,
+        typography = Typography,
+        content = content
+    )
+}
@@ -0,0 +1,34 @@
+package com.example.variableaxlemonitor.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+    bodyLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 16.sp,
+        lineHeight = 24.sp,
+        letterSpacing = 0.5.sp
+    )
+    /* Other default text styles to override
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Normal,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.Medium,
+        fontSize = 11.sp,
+        lineHeight = 16.sp,
+        letterSpacing = 0.5.sp
+    )
+    */
+)
@@ -0,0 +1,60 @@
+package com.example.variableaxlemonitor.viewmodel
+
+import android.app.Application
+import android.bluetooth.BluetoothDevice
+import androidx.compose.runtime.State
+import androidx.compose.runtime.mutableStateOf
+import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.variableaxlemonitor.bluetooth.BluetoothManager
+import com.example.variableaxlemonitor.data.AxleData
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.SharedFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.launch
+
+class AxleViewModel(application: Application) : AndroidViewModel(application) {
+    private val bluetoothManager = BluetoothManager(application)
+
+    val isConnected: StateFlow<Boolean> = bluetoothManager.isConnected
+    val lastMessage: StateFlow<String> = bluetoothManager.lastMessage
+    val mtu: StateFlow<Int> = bluetoothManager.mtu
+    val axleData: StateFlow<AxleData> = bluetoothManager.axleData
+    
+    val dataReceivedTrigger: SharedFlow<Unit> = bluetoothManager.dataReceivedTrigger
+
+    val foundDevices: StateFlow<List<BluetoothDevice>> = bluetoothManager.foundDevices
+
+    private val _loginError = MutableSharedFlow<String>()
+    val loginError: SharedFlow<String> = _loginError.asSharedFlow()
+
+    private val _loginSuccess = mutableStateOf(false)
+    val loginSuccess: State<Boolean> = _loginSuccess
+
+    fun login(user: String, pass: String) {
+        if (user == "mms" && pass == "mms") {
+            _loginSuccess.value = true
+        } else {
+            viewModelScope.launch {
+                _loginError.emit("User/Password가 맞지않습니다. 다시 시도하십시오.")
+            }
+        }
+    }
+
+    fun startScan() {
+        bluetoothManager.startScan()
+    }
+
+    fun stopScan() {
+        bluetoothManager.stopScan()
+    }
+
+    fun connectToDevice(device: BluetoothDevice) {
+        bluetoothManager.connect(device)
+    }
+
+    fun disconnect() {
+        bluetoothManager.disconnect()
+    }
+}
@@ -0,0 +1,12 @@
+# Add project specific R8 rules here.
+# AGP will combine all keep rule files in src/main/keepRules to pass to R8
+#
+# For more details, see
+#   https://d.android.com/r/tools/r8/keep-rules
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M12,20l8,-8h-5v-8h-6v8h-5z"/>
+</vector>
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M2,12h20M6,10v4M18,10v4M10,12v4M14,12v4"/>
+</vector>
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M12,4l-8,8h5v8h6v-8h5z"/>
+</vector>
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M2,12h20M6,12v4M18,12v4M6,8v4M18,8v4"/>
+</vector>
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM13,17h-2v-2h2v2zM13,13h-2V7h2v6z"/>
+</vector>
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#000000"
+        android:pathData="M20.38,8.57l-1.23,1.85a8,8 0,0 1 -14.3,0L3.62,8.57a10,10 0,0 0 16.76,0zM12,17c-1.1,0 -2,-0.9 -2,-2s0.9,-2 2,-2 2,0.9 2,2 -0.9,2 -2,2zM15,10.27L12,14l-3,-3.73a6,6 0,0 1 6,0z"/>
+</vector>
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">VariableAxleMonitor</string>
+</resources>
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="Theme.VariableAxleMonitor" parent="android:Theme.Material.Light.NoActionBar" />
+</resources>
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older than API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
@@ -0,0 +1,17 @@
+package com.example.variableaxlemonitor
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}