there is something wrong with the encodings.. try this

.gitignore

@@ -41,3 +41,40 @@ target
 ehthumbs.db
 Icon?
 Thumbs.db
+
+
+# Built application files
+*.apk
+*.ap_
+
+# Files for the Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+.idea
+*.iml
+
+# Android Studio captures folder
+captures/
+

AndroidArduinoOpenCV/res/values/strings.xml

@@ -4,19 +4,20 @@
     <string name="hello">Roogle rover</string>
     <string name="app_name">Roogle rover</string>
 
-
-
+
+
+
     <!--  BluetoothChat -->
     <string name="send">Send</string>
-    <string name="not_connected">You are not connected to a device</string>
+    <string name="not_connected">You are not connected to a device.</string>
     <string name="bt_not_enabled_leaving">Bluetooth was not enabled. Leaving Bluetooth Chat.</string>
-    <string name="title_connecting">connecting...</string>
-    <string name="title_connected_to">connected: </string>
-    <string name="title_not_connected">not connected</string>
+    <string name="title_connecting">Connecting...</string>
+    <string name="title_connected_to">Connected: </string>
+    <string name="title_not_connected">Not connected.</string>
 
     <!--  DeviceListActivity -->
-    <string name="scanning">scanning for devices...</string>
-    <string name="select_device">select a device to connect</string>
+    <string name="scanning">Scanning for devices...</string>
+    <string name="select_device">Select a device to connect</string>
     <string name="none_paired">No devices have been paired</string>
     <string name="none_found">No devices found</string>
     <string name="title_paired_devices">Paired Devices</string>
@@ -26,4 +27,4 @@
     <!-- Options Menu -->
     <string name="connect">Connect a device</string>
     <string name="discoverable">Make discoverable</string>
-</resources>
+</resources>