1. Development, debug and
deploy
hardware/software
solutions based on
Android and Arduino
Ilya Rodin
Senior Android Engineer
Lohika Systems

2. Arduino

3. Introduction into Arduino
Arduino is…
Open-source electronics
prototyping platform
Open-source development
environment
A lot of electronics circuit
elements, Arduino-base
schemes and kits
e.t.c
3

4. Hardware
Microcontroller ATmega2560
Operating Voltage 5V
Input Voltage
7-12V
(recommended)
Input Voltage (limits) 6-20V
54 (of which 15 provide
Digital I/O Pins
PWM output)
Analog Input Pins 16
DC Current per I/O
40 mA
Pin
DC Current for 3.3V
50 mA
Pin
256 KB of which 8 KB used
Flash Memory
by bootloader
SRAM 8 KB
EEPROM 4 KB
Clock Speed 16 MHz
4

5. Development environment
 Cross-platform Java-base IDE
 Simple C++ base language •Begin
• Well known language constructions
(class, variables, loops, operators,
methods, etc…)
• You can use already created library setup()
(LiquidCrystal, EEPROM, Servo,
TinyGPS, erc…)
• You can create new library, if it needed…
 Simple application life circle
loop()
 Port Monitor toolkit
 etc…
5

6. … and something more
 Connection by Digital I/O
• PWD
• UART
• I2C/TWI
• SPI devices
• DC motors
• etc..
 Connection by Analog port
• Microphone
• Sensors
• AC drive
• etc…
6

7. Hey, bro!
What about
Android?

8. Android Open Accessory
Support in…and higher
Android SDK 3.1 (API 12)
Google API add-on lib for Android 2.3.4
(API 10)
Implemented…
USB Host Mode
Accessory Mode
8

9. How it is work?
1. Wait for and detect connected devices
2. Determine the device's accessory mode support
• The attached device supports Android accessory mode and
is already in accessory mode.
• The attached device supports Android accessory mode, but
it is not in accessory mode.
• The attached device does not support Android accessory
mode.
3. Attempt to start the device in accessory mode if needed
4. Establish communication with the device if it supports the
Android accessory protocol
9

10. AOA 2.0
New products Ids…
AOA 1.0
• 0x2D00 – accessory
• 0x2D01 – accessory+ADB
AOA 2.0
• 0x2D02 – audio
New features… • 0x2D03 – audio+ADB
Audio output by USB (only for • 0x2D02 – accessory+audio
Android 4.1 (API 16) and higher)
• 0x2D03 – accessory+audio+ADB
Support multi-connection with HID
devices
10

11. Trouble…
Limitations…
High API level
Some Android devices do not support
Accessory/Host Mode
Android Emulator do not support USB
Resolving…
Try use MicroBridge Mode
Try use MicroBridge Mode
×Actually not resolved
11

12. ok, it is clear…
ADK ?! O_o

13. Android Development Kit
ADK 2011 ADK 2012
13

14. IOIO
Spark Fun IOIO it is…
Low cost PIC24FJ256-DA206 base
platform
Support connection by Digital Input/Output,
PWM, Analog Input, I2C, SPI, and UART.
Support Android 1.5 and higer
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16. Proteus Design Suit
16

17. LabVIEW 2012
17

18. Workshop

19. Find out more…
http://developer.android.com/tools/adk/
http://www.arduino.cc/
https://github.com/ytai/ioio/
http://code.google.com/p/microbridge/

20. Q&A

21. Thank you!