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Android ADK-Toolkit

Android ADK-Toolkit

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ADK Toolkit to manage UsbManager and UsbAccessory without any headaches!

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=================== Android ADK Toolkit

.. image:: https://readthedocs.org/projects/android-adk-toolkit/badge/?version=latest :target: http://docs.adktoolkit.org/ :alt: Documentation Status

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.. image:: https://api.bintray.com/packages/palazzem/maven/me.palazzetti%3Aadktoolkit/images/download.svg :target: https://bintray.com/palazzem/maven/me.palazzetti%3Aadktoolkit/_latestVersion

This toolkit helps beginners to be up and running with ADK 2012 without difficulties. If you have any ideas to improve this toolkit, go to contribution section.

ADK toolkit exposes an AdkManager to manage UsbManager and UsbAccessory. In this way you don't need to fully understand any background concepts about how ADK works. Anyhow don't forget to read the ADK official documentation_.

.. _ADK official documentation: http://developer.android.com/tools/adk/adk2.html


If you need support please send a message to the Android ADK Toolkit group_.

.. _Android ADK Toolkit group: https://groups.google.com/forum/#!forum/android-adk-toolkit/

Contribution guidelines

If you want to contribute, just follow the guidelines_.

.. _follow the guidelines: http://docs.adktoolkit.org/en/latest/contributing.html


Note: full documentation has more usage options. Check Usage section_ for more details.

.. _Usage section: http://docs.adktoolkit.org/en/latest/usage.html

Gradle dependency

This library is available on ``MavenCentral`` and `JCenter`_ (which is now the default repository
used in Android) so you can add this dependency directly in your ``build.gradle``::

    dependencies {
        compile 'me.palazzetti:adktoolkit:0.3.0'

.. _JCenter: https://bintray.com/bintray/jcenter


Create res/xml/usb_accessory_filter.xml configuration file to identify your accessory:

.. code-block:: xml

        manufacturer="Example, Inc."/>

Declare in your manifest that your application requires USB accessory support:

.. code-block:: xml

    <uses-feature android:name="android.hardware.usb.accessory" android:required="true"/>

    <!-- ... -->

Then add in your activity block this ADK intent filter:

.. code-block:: xml

<manifest ...>
    <application ...>
        <activity ...>

            <!-- ... -->

            <!-- Adk Intent Filter -->
                <action android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" />

            <meta-data android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED"

Java code

To use this toolkit initialize an ``AdkManager`` in your ``Activity`` ``onCreate`` callback and then
open your accessory in the ``onResume`` callback:

.. code-block:: java

    private AdkManager mAdkManager;

    protected void onCreate(Bundle savedInstanceState) {
        // ...
        mAdkManager = new AdkManager(this);

    protected void onResume() {

You can use the below methods to access your accessory:

.. code-block:: java

    // Write
    mAdkManager.write("Hello from Android!");

    // Read
    AdkMessage response = mAdkManager.read();
    // Could outputs: "Hello from Arduino!"


This README just provides basic information to show quickly how this library works. You can check
the `full documentation`_ on *Read the Docs*.

.. _full documentation: http://docs.adktoolkit.org/

Change log

0.3.0 [2015-01-10]

New features

  • Updated to latest gradle version 1.0.0
  • Added AdkMessage class, which exposes the raw byte[] array with some utility methods to get string, byte, int and float representations
  • Issue #13_: refactoring AdkManager to expose a common interface for read() and write()
  • Issue #16_: AdkManager constructor now accept an Activity context to initialize the accessory

Backwards incompatible changes from 0.2.x

  • removed writeSerial(String text)
  • removed writeSerial(int value)
  • removed readSerial()
  • removed readString()
  • removed readByte()

.. #13: https://github.com/palazzem/adk-toolkit/issues/13 .. #16: https://github.com/palazzem/adk-toolkit/issues/16

0.2.1 [2014-10-14]

* ``writeSerial`` now accept both ``byte`` and ``String`` values
* ``readSerial`` is now **deprecated** and default to ``readString`` method
* Added ``readString`` and ``readByte`` so you can read ``String`` and ``byte`` values from the serial port


* Fixed documentation: `#9`_

.. _#9: https://github.com/palazzem/adk-toolkit/issues/9

0.2.0 [2014-03-24]
  • FileInputStream and FileOutputStream are protected so they can be mocked easily during testing
  • Testing with Mockito_


  • Better input/output stream management to avoid NullPointerException on Accessory loading

Backwards incompatible changes in 0.2.0

  • Some class/method names are misleading so readText/sendText become readSerial/writeSerial and closeAdk/resumeAdk become close/open
  • AdkReceiver has been removed because the actual implementation of read/write can handle multiple char

.. _Mockito: https://github.com/mockito/mockito

0.1.0 [2014-02-05]

* ADK fast constructor
* Simple default implementation of Broadcast receiver and IntentFilter
* Writing and reading features available
* Simple AsyncTask support

Projects that use ADKToolkit

* `Android ADK rover`_
* `UDOO light bulb`_
* `Mobile tanker`_ an Android application powered by `OpenCV`_

.. _Android adk rover: https://github.com/palazzem/android-udoo-rover
.. _UDOO light bulb: https://github.com/palazzem/udoo-adk-lightbulb
.. _Mobile tanker: https://github.com/DMIAlumni/mobile-tanker
.. _OpenCV: http://opencv.org/

If you're interested to list your project here, feel free to submit a pull request.


* Application code: FreeBSD (see ``LICENSE`` file)


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