initial commit

app/src/main/AndroidManifest.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <!-- Bluetooth permissions for Android 10 (API 29) -->
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+
+    <!-- Bluetooth permissions for Android 12+ (API 31+) -->
+    <uses-permission android:name="android.permission.BLUETOOTH_SCAN"
+        android:usesPermissionFlags="neverForLocation" />
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
+
+    <!-- Internet for voice recognition -->
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+
+    <uses-feature
+        android:name="android.hardware.bluetooth"
+        android:required="true" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.StageControl"
+        android:screenOrientation="portrait">
+
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:screenOrientation="portrait"
+            android:keepScreenOn="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <activity
+            android:name=".DeviceListActivity"
+            android:exported="false"
+            android:screenOrientation="portrait" />
+
+    </application>
+
+</manifest>

app/src/main/java/com/stage/control/DeepSeekHelper.java

@@ -0,0 +1,112 @@
+package com.stage.control;
+
+import android.util.Log;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+
+import java.io.IOException;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.MediaType;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+
+public class DeepSeekHelper {
+    private static final String TAG = "DeepSeekHelper";
+    // Replace with your actual DeepSeek API Key
+    private static final String API_KEY = "sk-09319d4513b34ef78be61b8863f1c6a5";
+    private static final String API_URL = "https://api.deepseek.com/chat/completions";
+
+    private final OkHttpClient client = new OkHttpClient();
+    private final Gson gson = new Gson();
+    private final Executor executor = Executors.newSingleThreadExecutor();
+
+    public interface DeepSeekCallback {
+        void onResponse(String command);
+        void onError(Throwable t);
+    }
+
+    public void processVoiceCommand(String voiceText, DeepSeekCallback callback) {
+        executor.execute(() -> {
+            try {
+                // Constructing the JSON body according to the official DeepSeek format
+                JsonObject jsonRequest = new JsonObject();
+                jsonRequest.addProperty("model", "deepseek-chat");
+                
+                JsonArray messages = new JsonArray();
+                
+                JsonObject systemMessage = new JsonObject();
+                systemMessage.addProperty("role", "system");
+                systemMessage.addProperty("content", "You are a stage control mapper. Map the user's input to ONE of these characters ONLY: '1', '2', '3', 'S', 'H'. " +
+                        "'1': Action 1, '2': Action 2, '3': Action 3, 'S': Stop, 'H': Home. Return ONLY the character. If no match, return 'UNKNOWN'.");
+                messages.add(systemMessage);
+
+                JsonObject userMessage = new JsonObject();
+                userMessage.addProperty("role", "user");
+                userMessage.addProperty("content", voiceText);
+                messages.add(userMessage);
+
+                jsonRequest.add("messages", messages);
+                jsonRequest.addProperty("stream", false);
+
+                // Using official format for RequestBody and Headers
+                MediaType mediaType = MediaType.parse("application/json");
+                RequestBody body = RequestBody.create(jsonRequest.toString(), mediaType);
+
+                Request request = new Request.Builder()
+                        .url(API_URL)
+                        .post(body)
+                        .addHeader("Content-Type", "application/json")
+                        .addHeader("Authorization", "Bearer " + API_KEY)
+                        .build();
+
+                client.newCall(request).enqueue(new Callback() {
+                    @Override
+                    public void onFailure(Call call, IOException e) {
+                        callback.onError(e);
+                    }
+
+                    @Override
+                    public void onResponse(Call call, Response response) throws IOException {
+                        if (!response.isSuccessful()) {
+                            String errorBody = response.body() != null ? response.body().string() : "No error body";
+                            Log.e(TAG, "DeepSeek Error " + response.code() + ": " + errorBody);
+                            callback.onError(new IOException("Error " + response.code() + ": " + errorBody));
+                            return;
+                        }
+
+                        String responseBody = response.body().string();
+                        JsonObject jsonResponse = gson.fromJson(responseBody, JsonObject.class);
+                        
+                        // Parsing according to official response format
+                        String content = jsonResponse.getAsJsonArray("choices")
+                                .get(0).getAsJsonObject()
+                                .getAsJsonObject("message")
+                                .get("content").getAsString().trim().toUpperCase();
+
+                        Log.d(TAG, "DeepSeek Raw: " + content);
+
+                        String command = "UNKNOWN";
+                        if (content.contains("1")) command = "1";
+                        else if (content.contains("2")) command = "2";
+                        else if (content.contains("3")) command = "3";
+                        else if (content.contains("S")) command = "S";
+                        else if (content.contains("H")) command = "H";
+
+                        callback.onResponse(command);
+                    }
+                });
+
+            } catch (Exception e) {
+                callback.onError(e);
+            }
+        });
+    }
+}

app/src/main/java/com/stage/control/DeviceListActivity.java

@@ -0,0 +1,101 @@
+package com.stage.control;
+
+import android.Manifest;
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Bundle;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.content.ContextCompat;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+public class DeviceListActivity extends AppCompatActivity {
+
+    private ListView listView;
+    private List<BluetoothDevice> deviceList = new ArrayList<>();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_device_list);
+
+        listView = findViewById(R.id.lv_devices);
+        loadPairedDevices();
+    }
+
+    private void loadPairedDevices() {
+        BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
+        if (adapter == null) {
+            Toast.makeText(this, "블루투스를 사용할 수 없습니다.", Toast.LENGTH_SHORT).show();
+            finish();
+            return;
+        }
+
+        // Check permission
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_CONNECT)
+                    != PackageManager.PERMISSION_GRANTED) {
+                Toast.makeText(this, "블루투스 권한이 필요합니다.", Toast.LENGTH_SHORT).show();
+                finish();
+                return;
+            }
+        }
+
+        Set<BluetoothDevice> pairedDevices = adapter.getBondedDevices();
+        List<String> displayNames = new ArrayList<>();
+        deviceList.clear();
+
+        if (pairedDevices == null || pairedDevices.isEmpty()) {
+            Toast.makeText(this, "페어링된 장치가 없습니다.\n설정에서 HC-05를 먼저 페어링하세요.", Toast.LENGTH_LONG).show();
+            finish();
+            return;
+        }
+
+        for (BluetoothDevice device : pairedDevices) {
+            deviceList.add(device);
+            String name = device.getName() != null ? device.getName() : "Unknown";
+            displayNames.add(name + "\n" + device.getAddress());
+        }
+
+        ArrayAdapter<String> listAdapter = new ArrayAdapter<>(
+            this,
+            android.R.layout.simple_list_item_1,
+            displayNames
+        ) {
+            @Override
+            public View getView(int position, View convertView, android.view.ViewGroup parent) {
+                View v = super.getView(position, convertView, parent);
+                TextView tv = (TextView) v;
+                tv.setTextSize(20f);
+                tv.setPadding(32, 32, 32, 32);
+                tv.setTextColor(getResources().getColor(R.color.text_primary, null));
+                tv.setBackgroundColor(getResources().getColor(R.color.bg_card, null));
+                return v;
+            }
+        };
+
+        listView.setAdapter(listAdapter);
+        listView.setOnItemClickListener((parent, view, position, id) -> {
+            BluetoothDevice selected = deviceList.get(position);
+            Intent result = new Intent();
+            result.putExtra("device_address", selected.getAddress());
+            result.putExtra("device_name", selected.getName() != null ? selected.getName() : selected.getAddress());
+            setResult(Activity.RESULT_OK, result);
+            finish();
+        });
+    }
+}

app/src/main/java/com/stage/control/GeminiHelper.java

@@ -0,0 +1,86 @@
+package com.stage.control;
+
+import android.util.Log;
+
+import com.google.ai.client.generativeai.GenerativeModel;
+import com.google.ai.client.generativeai.java.GenerativeModelFutures;
+import com.google.ai.client.generativeai.type.Content;
+import com.google.ai.client.generativeai.type.GenerateContentResponse;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+public class GeminiHelper {
+    private static final String TAG = "GeminiHelper";
+    // Ensure this API key is valid from Google AI Studio
+    private static final String API_KEY = "AIzaSyCDiEk5wdKM2qZb988k0DAs7E-kXkeE2Xw";
+    
+    private final GenerativeModelFutures model;
+    private final Executor executor = Executors.newSingleThreadExecutor();
+
+    public interface GeminiResponseCallback {
+        void onResponse(String command);
+        void onError(Throwable t);
+    }
+
+    public GeminiHelper() {
+        // Using gemini-1.5-flash for stability and free tier
+        GenerativeModel gm = new GenerativeModel("gemini-1.5-flash", API_KEY);
+        model = GenerativeModelFutures.from(gm);
+    }
+
+    public void processVoiceCommand(String voiceText, GeminiResponseCallback callback) {
+        // Updated prompt to include Action 3 and clearer mapping
+        String prompt = "Map this voice input to exactly one character: '1', '2', '3', 'S', or 'H'.\n" +
+                "- '1' for Action 1, First, One\n" +
+                "- '2' for Action 2, Second, Two\n" +
+                "- '3' for Action 3, Third, Three\n" +
+                "- 'S' for Stop, Halt, Pause\n" +
+                "- 'H' for Home, Reset, Return\n" +
+                "If no match, reply 'UNKNOWN'.\n" +
+                "Input: \"" + voiceText + "\"\n" +
+                "Reply ONLY with the character.";
+
+        Content content = new Content.Builder()
+                .addText(prompt)
+                .build();
+
+        try {
+            ListenableFuture<GenerateContentResponse> response = model.generateContent(content);
+
+            Futures.addCallback(response, new FutureCallback<GenerateContentResponse>() {
+                @Override
+                public void onSuccess(GenerateContentResponse result) {
+                    try {
+                        String text = result.getText();
+                        if (text != null) {
+                            text = text.trim().toUpperCase();
+                            String command = "UNKNOWN";
+                            if (text.contains("1")) command = "1";
+                            else if (text.contains("2")) command = "2";
+                            else if (text.contains("3")) command = "3";
+                            else if (text.contains("S")) command = "S";
+                            else if (text.contains("H")) command = "H";
+                            callback.onResponse(command);
+                        } else {
+                            callback.onResponse("UNKNOWN");
+                        }
+                    } catch (Exception e) {
+                        callback.onError(e);
+                    }
+                }
+
+                @Override
+                public void onFailure(Throwable t) {
+                    Log.e(TAG, "Gemini Failure: " + t.toString());
+                    callback.onError(t);
+                }
+            }, executor);
+        } catch (Exception e) {
+            callback.onError(e);
+        }
+    }
+}

app/src/main/java/com/stage/control/MainActivity.java

@@ -0,0 +1,248 @@
+package com.stage.control;
+
+import android.Manifest;
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothSocket;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Looper;
+import android.speech.RecognizerIntent;
+import android.util.Log;
+import android.view.WindowManager;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class MainActivity extends AppCompatActivity {
+
+    private static final String TAG = "StageControl";
+    private static final UUID SPP_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
+    private static final int REQUEST_PERMISSIONS = 100;
+
+    private TextView tvStatus, tvVoiceResult, tvSentCommand;
+    private Button btnConnect, btnVoice;
+
+    private BluetoothAdapter bluetoothAdapter;
+    private BluetoothSocket bluetoothSocket;
+    private OutputStream outputStream;
+    private String connectedDeviceName = "";
+
+    private GeminiHelper geminiHelper;
+
+    private enum BtState { NOT_CONNECTED, CONNECTING, CONNECTED }
+    private BtState currentState = BtState.NOT_CONNECTED;
+
+    private final Handler mainHandler = new Handler(Looper.getMainLooper());
+    private ActivityResultLauncher<Intent> devicePickerLauncher, voiceLauncher, enableBtLauncher;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        setContentView(R.layout.activity_main);
+
+        tvStatus = findViewById(R.id.tv_status);
+        tvVoiceResult = findViewById(R.id.tv_voice_result);
+        tvSentCommand = findViewById(R.id.tv_sent_command);
+        btnConnect = findViewById(R.id.btn_connect);
+        btnVoice = findViewById(R.id.btn_voice);
+
+        btnConnect.setOnClickListener(v -> onConnectClicked());
+        btnVoice.setOnClickListener(v -> onVoiceClicked());
+
+        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        if (bluetoothAdapter == null) {
+            Toast.makeText(this, "Bluetooth not supported", Toast.LENGTH_LONG).show();
+            btnConnect.setEnabled(false);
+        }
+
+        geminiHelper = new GeminiHelper();
+
+        registerLaunchers();
+        checkPermissions();
+        updateUI(BtState.NOT_CONNECTED);
+    }
+
+    private void registerLaunchers() {
+        devicePickerLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            if (result.getResultCode() == Activity.RESULT_OK && result.getData() != null) {
+                connectToDevice(result.getData().getStringExtra("device_address"), result.getData().getStringExtra("device_name"));
+            }
+        });
+
+        voiceLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            if (result.getResultCode() == Activity.RESULT_OK && result.getData() != null) {
+                ArrayList<String> results = result.getData().getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
+                if (results != null && !results.isEmpty()) processVoiceWithAI(results.get(0));
+            } else {
+                tvVoiceResult.setText("Voice recognition failed.");
+            }
+        });
+
+        enableBtLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), result -> {
+            if (result.getResultCode() != Activity.RESULT_OK) Toast.makeText(this, "Please turn on Bluetooth", Toast.LENGTH_SHORT).show();
+        });
+    }
+
+    private void processVoiceWithAI(String voiceText) {
+        tvVoiceResult.setText("Analyzing (Gemini): " + voiceText);
+        geminiHelper.processVoiceCommand(voiceText, new GeminiHelper.GeminiResponseCallback() {
+            @Override
+            public void onResponse(String command) {
+                mainHandler.post(() -> {
+                    // tvVoiceResult.setText(voiceText + " -> " + command);
+                    tvVoiceResult.setText(voiceText); // 인식한 텍스트 그대로 출력
+                    if (!command.equals("UNKNOWN")) sendBluetoothCommand(command);
+                });
+            }
+
+            @Override
+            public void onError(Throwable t) {
+                mainHandler.post(() -> {
+                    String fullError = t.getMessage();
+                    // tvVoiceResult.setText("Gemini Error!\n" + fullError);
+                    tvVoiceResult.setText(voiceText); // 에러 시에도 인식한 텍스트 그대로 출력
+                    Log.e(TAG, "Gemini Error: " + fullError);
+
+                    String fallback = mapManual(voiceText);
+                    if (fallback != null) {
+                        tvVoiceResult.append("\nFallback: " + fallback);
+                        sendBluetoothCommand(fallback);
+                    }
+                });
+            }
+        });
+    }
+
+    private String mapManual(String t) {
+        String s = t.toLowerCase();
+        if (s.contains("push")) return "1";
+        if (s.contains("spin") || s.contains("spend")) return "2";
+        if (s.contains("penalty")) return "3";
+        return null;
+    }
+
+    private void onConnectClicked() {
+        if (currentState == BtState.CONNECTED) { disconnect(); return; }
+        if (bluetoothAdapter == null) return;
+        if (!bluetoothAdapter.isEnabled()) { enableBtLauncher.launch(new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)); return; }
+        devicePickerLauncher.launch(new Intent(this, DeviceListActivity.class));
+    }
+
+    private void onVoiceClicked() {
+        Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
+        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
+        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, "en-US");
+        intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak command");
+        try {
+            voiceLauncher.launch(intent);
+        } catch (Exception e) {
+            Toast.makeText(this, "Speech recognition unavailable", Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    private void connectToDevice(String addr, String name) {
+        updateUI(BtState.CONNECTING);
+        new Thread(() -> {
+            try {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+                    if (ContextCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
+                        mainHandler.post(() -> {
+                            Toast.makeText(this, "No Bluetooth Permission", Toast.LENGTH_SHORT).show();
+                            updateUI(BtState.NOT_CONNECTED);
+                        });
+                        return;
+                    }
+                }
+                BluetoothDevice dev = bluetoothAdapter.getRemoteDevice(addr);
+                bluetoothSocket = dev.createRfcommSocketToServiceRecord(SPP_UUID);
+                bluetoothAdapter.cancelDiscovery();
+                bluetoothSocket.connect();
+                outputStream = bluetoothSocket.getOutputStream();
+                mainHandler.post(() -> { connectedDeviceName = name; updateUI(BtState.CONNECTED); });
+            } catch (Exception e) {
+                mainHandler.post(() -> { 
+                    updateUI(BtState.NOT_CONNECTED); 
+                    Toast.makeText(this, "Connection failed: " + e.getMessage(), Toast.LENGTH_SHORT).show(); 
+                });
+            }
+        }).start();
+    }
+
+    private void sendBluetoothCommand(String cmd) {
+        if (outputStream == null) return;
+        new Thread(() -> {
+            try { 
+                outputStream.write(cmd.getBytes()); 
+                outputStream.flush(); 
+                mainHandler.post(() -> tvSentCommand.setText(cmd));
+            } catch (Exception e) { 
+                mainHandler.post(() -> {
+                    Toast.makeText(this, "Send failed", Toast.LENGTH_SHORT).show();
+                    updateUI(BtState.NOT_CONNECTED); 
+                });
+            }
+        }).start();
+    }
+
+    private void disconnect() {
+        try { if (outputStream != null) outputStream.close(); if (bluetoothSocket != null) bluetoothSocket.close(); } catch (Exception e) {}
+        updateUI(BtState.NOT_CONNECTED);
+    }
+
+    private void updateUI(BtState s) {
+        currentState = s;
+        switch (s) {
+            case NOT_CONNECTED:
+                tvStatus.setText("⚫ Not Connected");
+                tvStatus.setTextColor(getColor(R.color.status_disconnected));
+                btnConnect.setText("Connect Bluetooth");
+                btnVoice.setEnabled(false);
+                btnVoice.setAlpha(0.4f);
+                break;
+            case CONNECTING:
+                tvStatus.setText("🟡 Connecting...");
+                tvStatus.setTextColor(getColor(R.color.status_connecting));
+                btnConnect.setText("Connecting...");
+                btnConnect.setEnabled(false);
+                break;
+            case CONNECTED:
+                tvStatus.setText("🟢 Connected: " + connectedDeviceName);
+                tvStatus.setTextColor(getColor(R.color.status_connected));
+                btnConnect.setText("Disconnect");
+                btnConnect.setEnabled(true);
+                btnVoice.setEnabled(true);
+                btnVoice.setAlpha(1.0f);
+                break;
+        }
+    }
+
+    private void checkPermissions() {
+        List<String> needed = new ArrayList<>();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) needed.add(Manifest.permission.BLUETOOTH_CONNECT);
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_SCAN) != PackageManager.PERMISSION_GRANTED) needed.add(Manifest.permission.BLUETOOTH_SCAN);
+        } else {
+            if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) needed.add(Manifest.permission.ACCESS_FINE_LOCATION);
+        }
+        if (ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED) needed.add(Manifest.permission.RECORD_AUDIO);
+        if (!needed.isEmpty()) ActivityCompat.requestPermissions(this, needed.toArray(new String[0]), REQUEST_PERMISSIONS);
+    }
+}

app/src/main/res/drawable/card_bg.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@color/bg_card"/>
+    <corners android:radius="12dp"/>
+</shape>

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,9 @@
+<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="#FFFFFF"
+        android:pathData="M31,63.92V20.33h19.51v43.59h-19.51z M51.44,63.92V20.33h19.51v43.59h-19.51z" />
+</vector>

app/src/main/res/layout/activity_device_list.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="@color/bg_dark">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Select Paired Device"
+        android:textColor="@color/text_primary"
+        android:textSize="24sp"
+        android:textStyle="bold"
+        android:padding="24dp"
+        android:background="@color/bg_card"/>
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Please select your HC-05 device"
+        android:textColor="@color/text_label"
+        android:textSize="16sp"
+        android:padding="16dp"/>
+
+    <ListView
+        android:id="@+id/lv_devices"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:divider="@color/divider"
+        android:dividerHeight="1dp"/>
+
+</LinearLayout>

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/bg_dark"
+    android:orientation="vertical"
+    android:padding="24dp">
+
+    <!-- ─── BLUETOOTH STATUS ─── -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        android:background="@drawable/card_bg"
+        android:orientation="vertical"
+        android:padding="20dp">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="8dp"
+            android:letterSpacing="0.1"
+            android:text="📡 Bluetooth Status"
+            android:textAllCaps="true"
+            android:textColor="@color/text_label"
+            android:textSize="14sp" />
+
+        <TextView
+            android:id="@+id/tv_status"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="⚫ Not Connected"
+            android:textColor="@color/status_disconnected"
+            android:textSize="26sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+
+    <!-- ─── VOICE RESULT ─── -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_marginBottom="16dp"
+        android:layout_weight="1.5"
+        android:background="@drawable/card_bg"
+        android:orientation="vertical"
+        android:padding="20dp">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="8dp"
+            android:letterSpacing="0.1"
+            android:text="🎙 Recognized commands"
+            android:textAllCaps="true"
+            android:textColor="@color/text_label"
+            android:textSize="14sp" />
+
+        <ScrollView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+            <TextView
+                android:id="@+id/tv_voice_result"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="left"
+                android:text="—"
+                android:textColor="@color/text_primary"
+                android:textSize="16sp"
+                android:textStyle="normal" />
+        </ScrollView>
+    </LinearLayout>
+
+    <!-- ─── SENT COMMAND ─── -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_marginBottom="24dp"
+        android:layout_weight="1"
+        android:background="@drawable/card_bg"
+        android:orientation="vertical"
+        android:padding="20dp">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="8dp"
+            android:letterSpacing="0.1"
+            android:text="📤 Commands sent"
+            android:textAllCaps="true"
+            android:textColor="@color/text_label"
+            android:textSize="14sp" />
+
+        <TextView
+            android:id="@+id/tv_sent_command"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="—"
+            android:textColor="@color/accent_green"
+            android:textSize="60sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+
+    <!-- ─── CONNECT BUTTON ─── -->
+    <Button
+        android:id="@+id/btn_connect"
+        android:layout_width="match_parent"
+        android:layout_height="72dp"
+        android:layout_marginBottom="16dp"
+        android:backgroundTint="@color/btn_connect"
+        android:stateListAnimator="@null"
+        android:text="Bluetooth connect"
+        android:textColor="@color/white"
+        android:textSize="22sp"
+        android:textStyle="bold" />
+
+    <!-- ─── VOICE COMMAND BUTTON ─── -->
+    <Button
+        android:id="@+id/btn_voice"
+        android:layout_width="match_parent"
+        android:layout_height="96dp"
+        android:alpha="0.4"
+        android:backgroundTint="@color/btn_voice"
+        android:enabled="false"
+        android:stateListAnimator="@null"
+        android:text="🎤  Voice commands"
+        android:textColor="@color/white"
+        android:textSize="28sp"
+        android:textStyle="bold" />
+
+</LinearLayout>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/values/colors.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#0D0D0D</color>
+    <!-- Backgrounds -->
+    <color name="bg_dark">#0D0D0D</color>
+    <color name="bg_card">#1A1A2E</color>
+
+    <!-- Text -->
+    <color name="text_primary">#FFFFFF</color>
+    <color name="text_label">#888888</color>
+    <color name="white">#FFFFFF</color>
+
+    <!-- Status colors -->
+    <color name="status_connected">#00E676</color>
+    <color name="status_connecting">#FFD600</color>
+    <color name="status_disconnected">#FF5252</color>
+
+    <!-- Button colors -->
+    <color name="btn_connect">#1565C0</color>
+    <color name="btn_disconnect">#B71C1C</color>
+    <color name="btn_voice">#6A1B9A</color>
+
+    <!-- Accent -->
+    <color name="accent_green">#00E676</color>
+
+    <!-- Misc -->
+    <color name="divider">#333333</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Stage Control</string>
+</resources>

app/src/main/res/values/themes.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="Theme.StageControl" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+        <item name="colorPrimary">@color/btn_connect</item>
+        <item name="colorPrimaryVariant">@color/bg_card</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <item name="android:windowBackground">@color/bg_dark</item>
+        <item name="android:statusBarColor">@color/bg_card</item>
+        <item name="android:navigationBarColor">@color/bg_dark</item>
+    </style>
+</resources>