diff --git a/README.md b/README.md
index 84df903..008aed6 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,43 @@
-NxtAR-android
-=============
+NxtAR: A generic software architecture for Augmented Reality based mobile robot control.
+========================================================================================
 
-Modulo 2 de mi trabajo especial de grado.
+Android backend module
+----------------------
+
+### Abstract ###
+
+NxtAR is a generic software architecture for the development of Augmented Reality games
+and applications centered around mobile robot control. This is a reference implementation
+with support for [LEGO Mindstorms NXT][1] mobile robots.
+
+### Module description ###
+
+The Android backend module is a concrete [LibGDX][2] application that implements the operating
+system dependent parts of the NxtAR reference implementation. It is based around the [OpenCV][3]
+Computer Vision and Machine Learning library. Currently this module supports Android (>= 3.1)
+devices though it has been tested only on Android (>= 4.0). The module includes direct support for
+the [OUYA][4] gaming console and other devices using OUYA gamepads.
+
+### Module installation and usage. ###
+
+Install the NxtAR-core_XXXXXX.apk file on your device. To use you need additionally an Android (>= 3.0)
+phone and a LEGO Mindstorms NXT robot with the [LejOS][5] firmware installed. The [NxtAR-cam][6] module must be
+installed on the device and the [NxtAR-bot][7] module must be installed on the robot. Then, to start the compiled
+scenario follow these steps:
+
+* Start the NxtAR-core application.
+* Start the NxtAR-bot program on the robot.
+* Calibrate the robot's light sensor following the on-screen instructions.
+* When the robot displays *"Waiting for connection"* start the NxtAR-cam application and connect it with the robot.
+* Press the *"Start video streaming"* button on the NxtAR-cam application.
+* Press the *"Calibrate camera"* button on the NxtAR-core application and point the camera of the device running NxtAR-cam to an OpenCV checkerboard camera calibration pattern.
+
+The camera calibration step can be repeated if needed.
+
+ [1]: http://www.lego.com/en-us/mindstorms/?domainredir=mindstorms.lego.com
+ [2]: http://libgdx.badlogicgames.com/
+ [3]: http://opencv.org/
+ [4]: https://www.ouya.tv/
+ [5]: http://www.lejos.org/nxj.php
+ [6]: https://github.com/sagge-miky/NxtAR-cam
+ [7]: https://github.com/sagge-miky/NxtAR-bot
diff --git a/res/values-es/strings.xml b/res/values-es/strings.xml
index a6b32aa..01105a4 100644
--- a/res/values-es/strings.xml
+++ b/res/values-es/strings.xml
@@ -15,7 +15,7 @@
  * limitations under the License.
 -->
 <resources>
-    <string name="app_name">NxtAR</string>
-    <string name="ocv_failed">No se pudo inicializar OpenCV</string>
-    <string name="ocv_success">OpenCV inicializado con exito</string>
+    <string name="app_name">NxtAR-core</string>
+    <string name="ocv_failed">Error al inicializar OpenCV</string>
+    <string name="ocv_success">OpenCV inicializado con éxito</string>
 </resources>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index a7c755b..d5baa35 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -15,7 +15,7 @@
  * limitations under the License.
 -->
 <resources>
-    <string name="app_name">NxtAR</string>
+    <string name="app_name">NxtAR-core</string>
     <string name="ocv_failed">Failed to initialize OpenCV</string>
     <string name="ocv_success">OpenCV initialized successfully</string>
 </resources>
\ No newline at end of file