NUC-11: Finishing implementing Environment Sensor activity.

NucuHub.Android/app/src/main/java/dev/nuculabs/grpc/EnvironmentSensorData.java

@@ -5,6 +5,8 @@ import android.util.Log;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+import java.text.DecimalFormat;
+
 public class EnvironmentSensorData {
     @SuppressWarnings("FieldCanBeLocal")
     private final String TAG = EnvironmentSensorData.class.getName();
@@ -17,9 +19,10 @@ public class EnvironmentSensorData {
     public EnvironmentSensorData(String data, NucuCarSensors.SensorStateEnum state) {
         try {
             JSONObject json = new JSONObject(data);
+            DecimalFormat df = new DecimalFormat("#.#");
             temperature = json.getDouble("Temperature");
             humidity = json.getDouble("Humidity");
-            pressure = json.getDouble("Pressure");
+            pressure = Double.parseDouble(df.format(json.getDouble("Pressure")));
             volatileOrganicCompounds = json.getDouble("VolatileOrganicCompounds");
             sensorState = state;
         } catch (JSONException e) {
@@ -36,6 +39,32 @@ public class EnvironmentSensorData {
         return sensorState;
     }
 
+    /**
+     *    Computes the air quality score. The score goes from 0 to 3.
+     *    For example if the temperature value is abnormal but the rest of the values are normal, the score will be 1.
+     * @return The air quality score.
+     */
+    public int computeAirQualityScore() {
+        if (getSensorState() != NucuCarSensors.SensorStateEnum.Initialized) {
+            return -1;
+        }
+
+        int airQualityScore = 0;
+        // Ideal room temperature range is 18-26 celsius.
+        if (temperature > 26 || temperature < 20) {
+            airQualityScore += 1;
+        }
+        // Ideal humidity for humans is 30–70%
+        if (humidity < 30 || humidity > 70) {
+            airQualityScore += 1;
+        }
+        // Let's guess that ideal VoC resistance is > 150
+        if (volatileOrganicCompounds < 150) {
+            airQualityScore += 1;
+        }
+        return airQualityScore;
+    }
+
     public double getTemperature() {
         return temperature;
     }
@@ -51,4 +80,16 @@ public class EnvironmentSensorData {
     public double getVolatileOrganicCompounds() {
         return volatileOrganicCompounds;
     }
+
+    @SuppressWarnings("NullableProblems")
+    @Override
+    public String toString() {
+        return "EnvironmentSensorData{" +
+                ", temperature=" + temperature +
+                ", humidity=" + humidity +
+                ", pressure=" + pressure +
+                ", volatileOrganicCompounds=" + volatileOrganicCompounds +
+                ", sensorState=" + sensorState +
+                '}';
+    }
 }

NucuHub.Android/app/src/main/java/dev/nuculabs/grpc/EnvironmentSensorService.java

@@ -3,6 +3,8 @@ package dev.nuculabs.grpc;
 import NucuCarSensorsProto.EnvironmentSensorGrpcServiceGrpc;
 import NucuCarSensorsProto.NucuCarSensors;
 import android.util.Log;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
 import io.grpc.StatusRuntimeException;
@@ -17,11 +19,10 @@ import static java.util.concurrent.TimeUnit.SECONDS;
 
 public class EnvironmentSensorService {
     private final String TAG = EnvironmentSensorService.class.getName();
-    private final ManagedChannel channel;
     private final EnvironmentSensorGrpcServiceGrpc.EnvironmentSensorGrpcServiceBlockingStub blockingStub;
     private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
     private ScheduledFuture<?> periodicGrpcRequestHandle = null;
-    private EnvironmentSensorData lastMeasurementData = new EnvironmentSensorData("{}", NucuCarSensors.SensorStateEnum.Uninitialized);
+    private final MutableLiveData<EnvironmentSensorData> lastMeasurementData;
 
     public EnvironmentSensorService(String host, int port) {
         this(ManagedChannelBuilder.forAddress(host, port).usePlaintext());
@@ -29,31 +30,40 @@ public class EnvironmentSensorService {
     }
 
     public EnvironmentSensorService(ManagedChannelBuilder<?> channelBuilder) {
-        channel = channelBuilder.build();
+        ManagedChannel channel = channelBuilder.build();
         blockingStub = EnvironmentSensorGrpcServiceGrpc.newBlockingStub(channel);
+        lastMeasurementData = new MutableLiveData<>();
+        lastMeasurementData.setValue(new EnvironmentSensorData("{}", NucuCarSensors.SensorStateEnum.Uninitialized));
     }
 
     public void start() {
         final Runnable grpcPoolingTask = new Runnable() {
             public void run() {
-                lastMeasurementData = getMeasurement();
+                try {
+                    EnvironmentSensorData data = getMeasurement();
+                    Log.i(TAG, "Got new data " + data.toString());
+                    lastMeasurementData.postValue(data);
+                } catch (Exception e) {
+                    Log.e(TAG, e.getLocalizedMessage());
+                }
             }
         };
-        periodicGrpcRequestHandle = scheduler.scheduleAtFixedRate(grpcPoolingTask, 5, 10, SECONDS);
+        Log.i(TAG, "Scheduling automatic update.");
+        periodicGrpcRequestHandle = scheduler.scheduleAtFixedRate(grpcPoolingTask, 0, 10, SECONDS);
     }
 
     public void stop() {
+        Log.i(TAG, "Stopping automatic update.");
         periodicGrpcRequestHandle.cancel(true);
     }
 
-    public EnvironmentSensorData getLastMeasurementData() {
+    public LiveData<EnvironmentSensorData> getLastMeasurementData() {
         return lastMeasurementData;
     }
 
     private EnvironmentSensorData getMeasurement() {
         try {
-            NucuCarSensors.NucuCarSensorResponse response = null;
-            response = blockingStub.getMeasurement(null);
+            NucuCarSensors.NucuCarSensorResponse response = blockingStub.getMeasurement(null);
             Log.d(TAG, "getMeasurement " + response.getJsonData());
             return new EnvironmentSensorData(response.getJsonData(), response.getState());
         } catch (StatusRuntimeException e) {

NucuHub.Android/app/src/main/java/dev/nuculabs/nucuhub/MainActivity.java

@@ -28,7 +28,7 @@ public class MainActivity extends AppCompatActivity {
         // Passing each menu ID as a set of Ids because each
         // menu should be considered as top level destinations.
         mAppBarConfiguration = new AppBarConfiguration.Builder(
-                R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow)
+                R.id.nav_environment_sensor, R.id.nav_gallery, R.id.nav_slideshow)
                 .setDrawerLayout(drawer)
                 .build();
 

NucuHub.Android/app/src/main/java/dev/nuculabs/nucuhub/ui/sensors/EnvironmentSensorViewModel.java

@@ -3,25 +3,78 @@ package dev.nuculabs.nucuhub.ui.sensors;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
+import dev.nuculabs.grpc.EnvironmentSensorData;
 import dev.nuculabs.nucuhub.R;
 
 public class EnvironmentSensorViewModel extends ViewModel {
 
-    private MutableLiveData<String> sensorStatusImageTooltip;
-    private MutableLiveData<Integer> sensorStatusImageResourceId;
+    private final MutableLiveData<String> sensorStatusImageTooltip;
+    private final MutableLiveData<Integer> sensorStatusImage;
+    private final MutableLiveData<Double> sensorMeasurementTemperature;
+    private final MutableLiveData<Double> sensorMeasurementHumidity;
+    private final MutableLiveData<Double> sensorMeasurementPressure;
+    private final MutableLiveData<Double> sensorMeasurementVoc;
 
-    public EnvironmentSensorViewModel() {
-        sensorStatusImageResourceId = new MutableLiveData<>();
-        sensorStatusImageResourceId.setValue(R.drawable.no_signal);
-        sensorStatusImageTooltip = new MutableLiveData<>();
+    public LiveData<Double> getSensorMeasurementTemperature() {
+        return sensorMeasurementTemperature;
     }
 
-    public LiveData<Integer> getSensorStatusImageResourceId() {
-        return sensorStatusImageResourceId;
+    public LiveData<Double> getSensorMeasurementHumidity() {
+        return sensorMeasurementHumidity;
+    }
+
+    public LiveData<Double> getSensorMeasurementPressure() {
+        return sensorMeasurementPressure;
+    }
+
+    public LiveData<Double> getSensorMeasurementVoc() {
+        return sensorMeasurementVoc;
+    }
+
+    public EnvironmentSensorViewModel() {
+        // image.
+        sensorStatusImage = new MutableLiveData<>();
+        sensorStatusImage.setValue(R.drawable.no_signal);
+        sensorStatusImageTooltip = new MutableLiveData<>();
+        // measurements
+        sensorMeasurementTemperature = new MutableLiveData<>();
+        sensorMeasurementHumidity = new MutableLiveData<>();
+        sensorMeasurementPressure = new MutableLiveData<>();
+        sensorMeasurementVoc = new MutableLiveData<>();
+    }
+
+    public void notifyNewData(EnvironmentSensorData data) {
+        updateStatusImage(data);
+        sensorMeasurementTemperature.setValue(data.getTemperature());
+        sensorMeasurementHumidity.setValue(data.getHumidity());
+        sensorMeasurementPressure.setValue(data.getPressure());
+        sensorMeasurementVoc.setValue(data.getVolatileOrganicCompounds());
+        updateStatusImageTooltipValue();
+    }
+
+    public LiveData<Integer> getSensorStatusImage() {
+        return sensorStatusImage;
     }
 
     public LiveData<String> getSensorStatusImageTooltip() {
-        Integer sensorStatusImageResourceId = this.sensorStatusImageResourceId.getValue();
+        return sensorStatusImageTooltip;
+    }
+
+    private void updateStatusImage(EnvironmentSensorData data) {
+        int airQualityScore = data.computeAirQualityScore();
+        if (airQualityScore >= 0 && airQualityScore <= 1) {
+            sensorStatusImage.setValue(R.drawable.status_good);
+        } else if (airQualityScore == 2) {
+            sensorStatusImage.setValue(R.drawable.status_neutral);
+        } else if (airQualityScore >= 3) {
+            sensorStatusImage.setValue(R.drawable.status_bad);
+        } else {
+            sensorStatusImage.setValue(R.drawable.no_signal);
+        }
+    }
+
+    private void updateStatusImageTooltipValue() {
+        Integer sensorStatusImageResourceId = this.sensorStatusImage.getValue();
         if (sensorStatusImageResourceId == null) {
             sensorStatusImageResourceId = -1;
         }
@@ -29,15 +82,17 @@ public class EnvironmentSensorViewModel extends ViewModel {
         switch (sensorStatusImageResourceId) {
             case R.drawable.status_good:
                 sensorStatusImageTooltip.setValue("The air quality is good.");
-            case R.drawable.status_netural:
+                break;
+            case R.drawable.status_neutral:
                 sensorStatusImageTooltip.setValue("The air quality is not great, not terrible.");
+                break;
             case R.drawable.status_bad:
                 sensorStatusImageTooltip.setValue("The air quality is bad.");
+                break;
             case R.drawable.no_signal:
             default:
                 sensorStatusImageTooltip.setValue("No signal. Please ensure device is connected!");
                 break;
         }
-        return sensorStatusImageTooltip;
     }
 }

NucuHub.Android/app/src/main/java/dev/nuculabs/nucuhub/ui/sensors/SensorsFragment.java

@@ -4,46 +4,97 @@ import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
 import android.widget.ImageView;
+import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.lifecycle.Observer;
 import androidx.lifecycle.ViewModelProviders;
+import dev.nuculabs.grpc.EnvironmentSensorData;
 import dev.nuculabs.grpc.EnvironmentSensorService;
 import dev.nuculabs.nucuhub.R;
 
-import java.util.logging.Logger;
-
 public class SensorsFragment extends Fragment {
-    private static final Logger logger = Logger.getLogger(SensorsFragment.class.getName());
-    private View root;
     private EnvironmentSensorViewModel environmentSensorViewModel;
+    private EnvironmentSensorService environmentSensorService;
+    // ui elements
+    private ImageView sensorStatusImageView;
+    private TextView sensorStatusText;
+    private TextView temperatureText;
+    private TextView humidityText;
+    private TextView pressureText;
+    private TextView vocText;
 
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         environmentSensorViewModel = ViewModelProviders.of(this).get(EnvironmentSensorViewModel.class);
-        root = inflater.inflate(R.layout.fragment_environment_sensor, container, false);
+        View root = inflater.inflate(R.layout.fragment_environment_sensor, container, false);
 
-        // test button TODO: Investigate lifecycle methods and stop/start the scheduler accordingly.
-        Button testButton = root.findViewById(R.id.grpc_test_button);
-        final EnvironmentSensorService client = new EnvironmentSensorService("192.168.0.101", 8000);
-        client.start();
-        testButton.setOnClickListener(new View.OnClickListener() {
-            public void onClick(View v) {
-                logger.info("test button clicked!");
-                client.stop();
-            }
-        });
+        temperatureText = root.findViewById(R.id.envSensorTempText);
+        humidityText = root.findViewById(R.id.envSensorHumidityText);
+        pressureText = root.findViewById(R.id.envSensorPressureText);
+        vocText = root.findViewById(R.id.envSensorVocText);
+        sensorStatusImageView = root.findViewById(R.id.sensorStatusImageView);
+        sensorStatusText = root.findViewById(R.id.sensorStatusText);
+
+        environmentSensorService = new EnvironmentSensorService("192.168.0.100", 8000);
 
         setupSensorStatusImage();
+        setupSensorMeasurementsDisplays();
+        setupEnvironmentSensorService();
         return root;
     }
 
+    @Override
+    public void onStart() {
+        super.onStart();
+        environmentSensorService.start();
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        environmentSensorService.stop();
+    }
+
+    private void setupSensorMeasurementsDisplays() {
+        environmentSensorViewModel.getSensorMeasurementTemperature().observe(getViewLifecycleOwner(), new Observer<Double>() {
+            @Override
+            public void onChanged(Double value) {
+                temperatureText.setText(value.toString());
+            }
+        });
+        environmentSensorViewModel.getSensorMeasurementHumidity().observe(getViewLifecycleOwner(), new Observer<Double>() {
+            @Override
+            public void onChanged(Double value) {
+                humidityText.setText(value.toString());
+            }
+        });
+        environmentSensorViewModel.getSensorMeasurementPressure().observe(getViewLifecycleOwner(), new Observer<Double>() {
+            @Override
+            public void onChanged(Double value) {
+                pressureText.setText(value.toString());
+            }
+        });
+        environmentSensorViewModel.getSensorMeasurementVoc().observe(getViewLifecycleOwner(), new Observer<Double>() {
+            @Override
+            public void onChanged(Double value) {
+                vocText.setText(value.toString());
+            }
+        });
+    }
+
+    private void setupEnvironmentSensorService() {
+        environmentSensorService.getLastMeasurementData().observe(getViewLifecycleOwner(), new Observer<EnvironmentSensorData>() {
+            @Override
+            public void onChanged(EnvironmentSensorData environmentSensorData) {
+                environmentSensorViewModel.notifyNewData(environmentSensorData);
+            }
+        });
+    }
 
     private void setupSensorStatusImage() {
         // Dynamically observe the image of the sensor status image view.
-        final ImageView sensorStatusImageView = root.findViewById(R.id.sensorStatusImageView);
-        environmentSensorViewModel.getSensorStatusImageResourceId().observe(getViewLifecycleOwner(), new Observer<Integer>() {
+        environmentSensorViewModel.getSensorStatusImage().observe(getViewLifecycleOwner(), new Observer<Integer>() {
             @Override
             public void onChanged(Integer resourceId) {
                 sensorStatusImageView.setImageResource(resourceId);
@@ -53,6 +104,7 @@ public class SensorsFragment extends Fragment {
             @Override
             public void onChanged(String tooltip) {
                 sensorStatusImageView.setTooltipText(tooltip);
+                sensorStatusText.setText(tooltip);
             }
         });
     }

NucuHub.Android/app/src/main/res/drawable/baseline_contactless_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M12,2C6.48,2 2,6.48 2,12c0,5.52 4.48,10 10,10s10,-4.48 10,-10C22,6.48 17.52,2 12,2zM8.46,14.45L7.1,13.83c0.28,-0.61 0.41,-1.24 0.4,-1.86c-0.01,-0.63 -0.14,-1.24 -0.4,-1.8l1.36,-0.63c0.35,0.75 0.53,1.56 0.54,2.4C9.01,12.8 8.83,13.64 8.46,14.45zM11.53,16.01l-1.3,-0.74c0.52,-0.92 0.78,-1.98 0.78,-3.15c0,-1.19 -0.27,-2.33 -0.8,-3.4l1.34,-0.67c0.64,1.28 0.96,2.65 0.96,4.07C12.51,13.55 12.18,14.86 11.53,16.01zM14.67,17.33l-1.35,-0.66c0.78,-1.6 1.18,-3.18 1.18,-4.69c0,-1.51 -0.4,-3.07 -1.18,-4.64l1.34,-0.67C15.56,8.45 16,10.23 16,11.98C16,13.72 15.56,15.52 14.67,17.33z"/>
+</vector>

NucuHub.Android/app/src/main/res/layout/fragment_environment_sensor.xml

@@ -13,18 +13,115 @@
             app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent"
             android:layout_marginStart="70dp"
             android:contentDescription="@string/environment_status_description"
-            app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="376dp"
             android:background="#00FFFFFF"
             app:layout_constraintHorizontal_bias="1.0" app:layout_constraintTop_toTopOf="parent"
             android:tooltipText="what is this amaaaizng"
-            android:layout_marginTop="90dp" app:srcCompat="@drawable/status_netural"
-            tools:srcCompat="@drawable/status_netural"/>
-    <Button
-            android:text="Button"
+            android:layout_marginTop="90dp" app:srcCompat="@drawable/status_neutral"
+            tools:srcCompat="@drawable/status_neutral" android:adjustViewBounds="true" android:scaleType="center"
+            android:layout_marginBottom="32dp" app:layout_constraintBottom_toTopOf="@+id/constraintLayout"/>
+    <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="415dp"
+            android:layout_height="172dp"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintEnd_toEndOf="parent" app:layout_constraintBottom_toBottomOf="parent"
+            android:layout_marginBottom="164dp" android:layout_marginTop="32dp"
+            app:layout_constraintTop_toBottomOf="@+id/sensorStatusImageView" android:id="@+id/constraintLayout">
+
+        <TextView
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorPressureText"
+                android:gravity="center" android:foregroundGravity="center" android:backgroundTint="#00FFFEFE"
+                android:clickable="false" android:drawableTint="#00FFFFFF"
+                android:textStyle="bold" android:textColor="#000000"
+                android:textSize="16sp"
+                tools:text="1000.5"
+                android:layout_marginStart="48dp"
+                app:layout_constraintStart_toEndOf="@+id/envSensorHumidityText" android:layout_marginTop="22dp"
+                app:layout_constraintTop_toBottomOf="@+id/envSensorPresureImg"
+                app:layout_constraintEnd_toStartOf="@+id/envSensorVocText"
+                app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="25dp"/>
+        <TextView
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorVocText"
+                android:gravity="center" android:foregroundGravity="center" android:backgroundTint="#00FFFEFE"
+                android:clickable="false" android:drawableTint="#00FFFFFF"
+                android:textStyle="bold" android:textColor="#000000"
+                android:textSize="16sp"
+                tools:text="100.11"
+                android:layout_marginTop="22dp"
+                app:layout_constraintTop_toBottomOf="@+id/envSensorVocImg" android:layout_marginStart="48dp"
+                app:layout_constraintStart_toEndOf="@+id/envSensorPressureText" android:layout_marginEnd="29dp"
+                app:layout_constraintEnd_toEndOf="parent" app:layout_constraintBottom_toBottomOf="parent"
+                android:layout_marginBottom="25dp"/>
+        <TextView
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorHumidityText"
+                android:gravity="center" android:foregroundGravity="center" android:backgroundTint="#00FFFEFE"
+                android:clickable="false" android:drawableTint="#00FFFFFF"
+                android:textStyle="bold" android:textColor="#000000"
+                android:textSize="16sp"
+                tools:text="0.00"
+                android:layout_marginStart="48dp"
+                app:layout_constraintStart_toEndOf="@+id/envSensorTempText" android:layout_marginTop="22dp"
+                app:layout_constraintTop_toBottomOf="@+id/envSensorHumidityImg"
+                app:layout_constraintEnd_toStartOf="@+id/envSensorPressureText"
+                app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="25dp"/>
+        <ImageView
+                android:src="@drawable/thermometer"
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorTempImg"
+                android:adjustViewBounds="false"
+                android:contentDescription="@string/temperature_icon_desc" android:cropToPadding="false"
+                android:scaleType="fitCenter"
+                app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="29dp"
+                app:layout_constraintEnd_toStartOf="@+id/envSensorHumidityImg" app:layout_constraintTop_toTopOf="parent"
+                android:layout_marginTop="21dp"/>
+        <ImageView
+                android:src="@drawable/poisoning"
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorVocImg"
+                android:contentDescription="@string/voc_icon_desc"
+                app:layout_constraintStart_toEndOf="@+id/envSensorPresureImg"
+                android:layout_marginEnd="29dp" app:layout_constraintEnd_toEndOf="parent"
+                android:layout_marginStart="48dp" app:layout_constraintTop_toTopOf="parent"
+                android:layout_marginTop="21dp"/>
+        <ImageView
+                android:src="@drawable/barometer"
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorPresureImg"
+                android:contentDescription="@string/barometer_icon_desc"
+                android:layout_marginStart="48dp" app:layout_constraintStart_toEndOf="@+id/envSensorHumidityImg"
+                app:layout_constraintEnd_toStartOf="@+id/envSensorVocImg" app:layout_constraintTop_toTopOf="parent"
+                android:layout_marginTop="21dp"/>
+        <ImageView
+                android:src="@drawable/humidity"
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorHumidityImg"
+                android:adjustViewBounds="true"
+                android:contentDescription="@string/humidity_icon_desc"
+                android:layout_marginStart="48dp"
+                app:layout_constraintStart_toEndOf="@+id/envSensorTempImg"
+                app:layout_constraintEnd_toStartOf="@+id/envSensorPresureImg" app:layout_constraintTop_toTopOf="parent"
+                android:layout_marginTop="21dp"/>
+        <TextView
+                android:layout_width="55dp"
+                android:layout_height="52dp" android:id="@+id/envSensorTempText"
+                android:gravity="center" android:foregroundGravity="center" android:backgroundTint="#00FFFEFE"
+                android:clickable="false" android:drawableTint="#00FFFFFF"
+                android:textStyle="bold" android:textColor="#000000"
+                android:textSize="16sp" android:layout_marginTop="22dp"
+                app:layout_constraintTop_toBottomOf="@+id/envSensorTempImg"
+                app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="29dp" tools:text="10000"
+                app:layout_constraintEnd_toStartOf="@+id/envSensorHumidityText"
+                app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="25dp"/>
+    </androidx.constraintlayout.widget.ConstraintLayout>
+    <TextView
             android:layout_width="wrap_content"
-            android:layout_height="wrap_content" android:id="@+id/grpc_test_button"
-            app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="161dp"
-            android:layout_marginEnd="162dp" app:layout_constraintEnd_toEndOf="parent"
-            app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="106dp"
-            android:layout_marginTop="221dp" app:layout_constraintTop_toBottomOf="@+id/sensorStatusImageView"/>
+            android:layout_height="19dp" android:id="@+id/sensorStatusText"
+            android:layout_marginTop="40dp"
+            app:layout_constraintTop_toBottomOf="@+id/sensorStatusImageView"
+            app:layout_constraintStart_toStartOf="parent" android:layout_marginStart="40dp"
+            android:layout_marginEnd="40dp" app:layout_constraintEnd_toEndOf="parent"
+            android:layout_marginBottom="26dp" app:layout_constraintBottom_toTopOf="@+id/constraintLayout"
+            tools:text="Sensor Status Explain" android:textStyle="bold"/>
 </androidx.constraintlayout.widget.ConstraintLayout>

NucuHub.Android/app/src/main/res/menu/activity_main_drawer.xml

@@ -5,16 +5,20 @@
 
     <group android:checkableBehavior="single">
         <item
-                android:id="@+id/nav_home"
-                android:icon="@drawable/ic_menu_camera"
-                android:title="@string/menu_home"/>
+                android:id="@+id/nav_environment_sensor"
+                android:icon="@drawable/baseline_contactless_24"
+                android:title="@string/menu_environment_sensor"/>
         <item
                 android:id="@+id/nav_gallery"
                 android:icon="@drawable/ic_menu_gallery"
-                android:title="@string/menu_gallery"/>
+                android:title="@string/menu_gallery"
+                android:enabled="false"
+        />
         <item
                 android:id="@+id/nav_slideshow"
                 android:icon="@drawable/ic_menu_slideshow"
-                android:title="@string/menu_slideshow"/>
+                android:title="@string/menu_slideshow"
+                android:enabled="false"
+        />
     </group>
 </menu>

NucuHub.Android/app/src/main/res/navigation/mobile_navigation.xml

@@ -3,12 +3,12 @@
             xmlns:app="http://schemas.android.com/apk/res-auto"
             xmlns:tools="http://schemas.android.com/tools"
             android:id="@+id/mobile_navigation"
-            app:startDestination="@+id/nav_home">
+            app:startDestination="@+id/nav_environment_sensor">
 
     <fragment
-            android:id="@+id/nav_home"
+            android:id="@+id/nav_environment_sensor"
             android:name="dev.nuculabs.nucuhub.ui.sensors.SensorsFragment"
-            android:label="@string/menu_home"
+            android:label="@string/menu_environment_sensor"
             tools:layout="@layout/fragment_environment_sensor"/>
 
     <fragment

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

@@ -3,12 +3,16 @@
     <string name="environment_status_description">Temperature sensor status</string>
     <string name="navigation_drawer_open">Open navigation drawer</string>
     <string name="navigation_drawer_close">Close navigation drawer</string>
-    <string name="nav_header_title">Android Studio</string>
-    <string name="nav_header_subtitle">android.studio@android.com</string>
+    <string name="nav_header_title">NucuHub</string>
+    <string name="nav_header_subtitle">denis@nuculabs.dev</string>
     <string name="nav_header_desc">Navigation header</string>
     <string name="action_settings">Settings</string>
 
-    <string name="menu_home">Home</string>
+    <string name="menu_environment_sensor">Environment Sensor</string>
     <string name="menu_gallery">Gallery</string>
     <string name="menu_slideshow">Slideshow</string>
+    <string name="humidity_icon_desc">humidity image</string>
+    <string name="temperature_icon_desc">temperature icon</string>
+    <string name="barometer_icon_desc">barometer icon</string>
+    <string name="voc_icon_desc">voc icon</string>
 </resources>