Describe about ADK and Arduino, How to use them.

1. Hacktime for ADK
SeongJae Park <sj38.park@gmail.com>

2. Great to meet you
SeongJae Park <sj38.park@gmail.com>
A member of GDG Suwon
Newbie to Arduino
Let's enjoy hacking

3. Just do it - 1:Let's hack Arduino
Download and install IDE, Arduino 1.0
If Mac, install FTDI USB driver(Link)

4. Just do it - 1:How to hack Arduino
Let's blink led on Arduino board

5. Just do it - 1:How to hack Arduino
Let's blink led on breadboard

6. Just do it - 1:How to hack Arduino
Let's blink led on breadboard

7. Just do it - 1:How to hack Arduino
5V
Ground 300 Ohm
LED
Ground
300 Ohm
5V

8. Background & Concepts
Android accessories

9. Background & Concepts
Android accessories

10. Background & Concepts
● No standard protocol / API
● Only selected devices
● Only selected developers

11. ● Android Open Accessory(AOA) support
○ From 3.1, Back-ported to 2.3.4
○ USB api
○ AOA protocol
○ ADK
Background & Concepts

12. ● Android Open Accessory(AOA) support
○ Standard
○ Any developer can develop
○ Works on every AOA supporting Android device
Background & Concepts

13. ● AOA 2.0 protocol & ADK 2012
○ Announced from Google IO 2012
○ Connection via Bluetooth
○ Audio output
○ HID accessory support
○ From JellyBean(4.1)
Background & Concepts

14. AOA support structure overview
AOA protocol USB api
Application

15. AOA protocol
Is in accessory mode?
(show vendor id, product id)
Support AOA?
(GET_PROTOCOL)
Start accessory mode
(ACCESSORY_START)
Establish connection
Bad
ending
:'(
YES
NO
YES
NO

16. USB API
App can communicate with USB devices
● Host mode
○ From 3.1
● Accessory mode
○ Back ported to 2.3.4(Google APIs add-on library)

17. USB API
● Notify connected device using intent
● Can enumerates connected devices
● Request permission to user
● Can interact using I/O Stream like file

18. ADK - components
● Sample USB api using application(DemoKit)
● Sample sketch for ADK using AOA(demokit)
● AOA protocol implementation library
● Arduino-USB control library
● ADK H/W design

19. ADK - impl of AOA protocol
AndroidAccessory class

20. ADK - impl of AOA protocol
isConnected : start point

21. ADK - impl of AOA protocol
Is in accessory mode?

22. ADK - impl of AOA protocol
Do you support AOA?

23. ADK - impl of AOA protocol
I am...; Start accessory mode.

24. Establish connection
Find end points, set configuration 1

25. ADK - impl of AOA protocol
End points usage

26. Sample sketch using ADK
adkminihack

27. Sample sketch using ADK
New AndroidAccessory

28. Sample sketch using ADK
init and power on

29. Sample sketch using ADK
Connect, listen, echo

30. Sample app using USB api
ADKMiniHack

31. Sample app using USB api
Feature, Library, Intent filter

32. Sample app using USB api
accessory_filter.xml

33. Sample app using USB api
● "com.android.future.usb" for gingerbread
● "android.hardware.usb" for only 3.1 or upper

34. Sample app using USB api
Get UsbManager and Enumerate accessories
Request Permission

35. Sample app using USB api
Open accessory

36. Sample app using USB api
File-like interface

37. Sample app using USB api
Listening, too.

38. Sample app using USB api
Clean up when accessory detached.

39. Sample source codes
● Downloadable from github

40. Just do it - 2. Let's make simple AOA

41. Just do it - 2. Let's make simple AOA
ADK Install
● Download ADK and extract

42. Just do it - 2. Let's make simple AOA
ADK Install
On Windows:
1. Copy the arduino_libs/AndroidAccessory and
arduino_libs/USB_Host_Shield directories (the
complete directories, not just the files within) to the
<arduino_installation_root>/libraries/
directory.

43. Just do it - 2. Let's make simple AOA
ADK Install
On Mac:
1. Create, if it does not already exist, an Arduino directory
inside your user account's Documents directory, and
within that, a libraries directory.
2. Copy the arduino_libs/AndroidAccessory and
arduino_libs/USB_Host_Shield directories (the
complete directories, not just the files within) to your
Documents/Arduino/libraries/ directory.

44. Just do it - 2. Let's make simple AOA
ADK Install
On Linux (Ubuntu):
1. Copy the firmware/arduino_libs/AndroidAccessory
and
firmware/arduino_libs/USB_Host_Shielddirectories
(the complete directories, not just the files within) to
the<arduino_installation_root>/libraries/
directory.
2. Install the avr-libc library by entering sudo apt-get
install avr-libc from a shell prompt.

45. Just do it - 2. Let's make simple AOA
To debug Arduino
1. Serial.begin(<baud-rate>)
2. Serial.println("This is debug message.")

46. Just do it - 2. Let's make simple AOA
To debug Android device without USB
1. $ adb tcpip 5555
2. $ adb connect <device-ip>:5555
3. $ adb logcat
4. $ adb usb
But, looks doesn't works well...

47. Just do it - 2. Let's make simple AOA
● For IP Confirm,
○ Wifi settings > Option menu > Advanced

48. Just do it - 2. Let's make simple AOA
● example code
○ example/ADKMiniHack
■ Change project build target to Google APIs 10
○ example/Sketch

49. Just do it - 2. Let's make simple AOA
● OSCOKIRQ failed to assert
○ Problem occurs from ADK USB library's Max3421e.
○ Below is workaround for this from discussion

50. Let the hacking begin
: Suggested misson
● Clavier that Input from phone screen, Output
to Arduino
○ Turn on/off LED for each keys
○ Blink RGB led for each keys
○ Turn off when it's too dark(night)
○ Make tones higher with analog dialer

51. Let the hacking begin
: Sample

52. This work by SeongJae Park is licensed under the
Creative Commons Attribution-ShareAlike 3.0 Unported
License. To view a copy of this license, visit http:
//creativecommons.org/licenses/by-sa/3.0/.