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+.. SPDX-FileCopyrightText: Huawei Inc.
+..
+.. SPDX-License-Identifier: CC-BY-4.0
+
+.. include:: ./definitions.rst
+
+##############
+CATS Blueprint
+##############
+
+.. contents::
+   :depth: 4
+
+********
+Overview
+********
+
+The CATS (Context Aware Touch Screen) Blueprint provides support for touch screen which responds
+to tapped buttons on it and sends further signal.
+
+************
+The Hardware
+************
+
+Needed components
+=================
+
+..TODO
+
+************
+The Software
+************
+
+Get sources
+===========
+#.
+ Get |main_project_name| sources as described in the :ref:`blueprints workspace documentation <Workspace>`.
+ For this specific build, you need to 
+ clone `meta-oniro-blueprints-doorlock <https://gitlab.eclipse.org/eclipse/oniro-blueprints/doorlock/meta-oniro-blueprints-doorlock>`_.
+   
+   .. code-block:: bash
+
+      $ cd $CHECKOUT_DIR
+      $ git clone --recursive https://gitlab.eclipse.org/eclipse/oniro-blueprints/core/meta-oniro-blueprints-core.git
+      $ git clone --recursive git@gitlab.eclipse.org:eclipse/oniro-blueprints/context-aware-touch-screen/meta-oniro-blueprints-cats.git
+      $ cd meta-oniro-blueprints-cats
+      $ git checkout brgl/cats-linux
+
+.. note::
+
+   Make sure you define or replace
+   `CHECKOUT_DIR` as described in :ref:`blueprints workspace documentation <Workspace>`.
+
+#.
+ If you already have sources cloned, update them to the most recent revision
+
+.. code-block:: bash
+
+ user@pc:~/oniroproject$ repo sync -d
+
+Also, update the `meta-oniro-blueprint` git checkout.
+
+Build the software
+==================
+#. To build the image for this blueprint, you need to set the corresponding distro in the conf/local.conf file or on the command line as seen below:
+
+    .. code-block:: bash
+
+        $ TEMPLATECONF=../oniro/flavours/zephyr . ./oe-core/oe-init-build-env build-oniro-doorlock
+        
+#. Add the `meta-oniro-blueprints-doorlock`` & `meta-oniro-blueprints-core` layers to the build.
+
+   This is only needed once after initializing a new build. 
+
+    .. code-block:: bash
+
+        $ bitbake-layers add-layer $CHECKOUT_DIR/meta-oniro-blueprints-core 
+        $ bitbake-layers add-layer $CHECKOUT_DIR/meta-oniro-blueprints-cats
+
+
+#. Start building the image
+
+    .. code-block:: bash
+
+        DISTRO=oniro-linux-blueprint-cats MACHINE=raspberrypi4-64 bitbake blueprint-cats-image
+
+Flash the software when built with bitbake
+==========================================
+#. After building the image, prepare the board by connecting the board's USB port to your computer and putting the board into flashing mode by double-pressing the reset button.
+#. Use `BOSSA <https://github.com/arduino/BOSSA>`_ to flash the image to the board. You can build BOSSA from source (use the nrf branch), or you can try a prebuilt version of BOSSA for many Linux distributions in `The Oniro Project OBS repository <https://build.opensuse.org/repositories/home:oniroproject:tools>`_. If you're using OpenMandriva, you can ``dnf install bossa`` from the distribution's repositories.
+#. You also need the python serial module (which may or may not be installed in your distribution by default). Most if not all Linux distributions have a package for this module, typically called python-serial or python3-serial. Use the distribution's package manager to install this package.
+#. Flash the door lock software to the board:
+
+    .. code-block:: bash
+
+        $ DISTRO="oniro-zephyr-blueprint-doorlock" MACHINE=arduino-nano-33-ble bitbake zephyr-blueprint-doorlock -c flash_usb
+
+Alternative way of building the software (using west)
+=====================================================
+#. You can also use Zephyr's build system to build the image, e.g. to try working with a git snapshot of the Zephyr OS. To do that (assuming you have the Zephyr toolset, consisting of west and the Zephyr SDK, installed):
+
+    .. code-block:: bash
+
+        $ mkdir doorlock
+        $ cd doorlock
+        $ west init --mr v2.7.0
+        $ west update
+        $ git clone https://gitlab.eclipse.org/eclipse/oniro-blueprints/doorlock/doorlock-zephyr.git
+        $ west build -p auto -b arduino_nano_33_ble doorlock-zephyr
+
+Flashing the software when built with west
+==========================================
+#. After building the image, prepare the board by connecting the board's USB port to your computer and putting the board into flashing mode by double-pressing the reset button.
+#. Use `BOSSA <https://github.com/arduino/BOSSA>`_ to flash the image to the board. You can build BOSSA from source (use the nrf branch), or you can try a prebuilt version of BOSSA for many Linux distributions in `The Oniro Project OBS repository <https://build.opensuse.org/repositories/home:oniroproject:tools>`_. If you're using OpenMandriva, you can ``dnf install bossa`` from the distribution's repositories.
+#. If BOSSA is not provided for your distribution, use:
+
+    .. code-block:: bash
+
+        $ git clone -b nrf https://github.com/arduino/BOSSA
+        $ cd BOSSA
+        $ make bossac
+        $ sudo cp bin/bossac /usr/local/bin # (or any other place in your PATH)
+
+#. Use BOSSA to flash the software
+
+    .. code-block:: bash
+
+        $ bossac -p ttyACM0 -R -e -w -v -b build/zephyr/zephyr.bin
+
+.. note::
+    You may need to replace `ttyACM0`.
+
+
+Resources
+=========
+
+.. _ResourcesDL:
+
+- See `Door lock's requirement <https://git.ostc-eu.org/OSTC/requirements/-/issues/12>`_
+
+..
+  We probably have to move those requirement to gitlab.eclipse
+
+*******************
+Using the door lock
+*******************
+
+Initial setup
+=============
+After initial flashing, you get to select the pin that will unlock the lock.
+The red LED on the Arduino board flashes quickly while waiting for your new pin.
+
+Setting a pin
+=============
+You can use any combination of keys, including pressing multiple keys simultaneously.
+Enter the pin you would like to use, and finish by holding the "*" key and pressing "#".
+For example, if you want to use pin 1 23 4 (where 3 has to be pressed while 2 is still being held down), press and release 1, press and hold 2, press 3, release 2 and 3, press and release 4, press and hold * , press #, release * and #.
+
+Driving the lock
+================
+Simply enter your pin using the matrix keypad to unlock the lock.
+
+Changing the pin
+================
+Within 10 seconds of entering your pin to unlock the lock, hold the "*" key and press "#".
+At this point, the red LED on the board will flash quickly, and you can enter a new pin
+as described in "Setting a pin".
+
+Forgotten pin
+=============
+There is no "master key". If you've forgotten your pin, flash the separate `factory reset app <https://gitlab.eclipse.org/eclipse/oniro-blueprints/doorlock/doorlock-factoryreset>`_, boot it, then reflash the doorlock app.
+
+Build the factory reset firmware
+================================
+#. Make sure you have the Zephyr toolset, consisting of west and the Zephyr SDK, installed, then run:
+
+    .. code-block:: bash
+
+        $ mkdir doorlock-factoryreset
+        $ cd doorlock-factoryreset
+        $ west init --mr v2.7.0
+        $ west update
+        $ git clone https://gitlab.eclipse.org/eclipse/oniro-blueprints/doorlock/doorlock-factoryreset.git
+        $ west build -p auto -b arduino_nano_33_ble doorlock-factoryreset
+
+Flashing the factory reset firmware
+===================================
+#. After building the image, prepare the board by connecting the board's USB port to your computer and putting the board into flashing mode by double-pressing the reset button.
+#. Use `BOSSA <https://github.com/arduino/BOSSA>`_ to flash the image to the board. You can build BOSSA from source (use the nrf branch), or you can try a prebuilt version of BOSSA for many Linux distributions in `The Oniro Project OBS repository <https://build.opensuse.org/repositories/home:oniroproject:tools>`_. If you're using OpenMandriva, you can ``dnf install bossa`` from the distribution's repositories.
+#. If BOSSA is not provided for your distribution, use:
+
+    .. code-block:: bash
+
+        $ git clone -b nrf https://github.com/arduino/BOSSA
+        $ cd BOSSA
+        $ make bossac
+        $ sudo cp bin/bossac /usr/local/bin # (or any other place in your PATH)
+
+#. Use BOSSA to flash the software
+
+    .. code-block:: bash
+
+        $ bossac -p ttyACM0 -R -e -w -v -b build/zephyr/zephyr.bin
+
+.. note::
+    You may need to replace `ttyACM0`.
+    
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