This document provides an overview of connecting Arduino devices to Android via USB, NFC, and WiFi. It begins with an introduction to Arduino and its open source hardware platform. It then covers Google's Open Accessory Protocol for USB communication between Android and third party devices. Next, it discusses using NFC for two-way communication between devices via tag reading/writing, Android Beam, and card emulation. Finally, it presents using the Arduino Yun and its OpenWrt component to enable WiFi connectivity. Demos are provided for various connectivity methods.

1. Arduino & Android
Michał Tuszyński, iOS/Android Developer
twitter, github: @srgtuszy

2. Roadmap
1. Arduino primer
2. USB
3. NFC
4. WIFI

3. Arduino Primer
Arduino is an open source hardware
prototyping platform

4. Arduino Primer
What makes it special?
•
Easiness to use
•
Modularity
•
Awesome community support

5. Open Accessory Protocol
Google’s protocol for usb communication with
third party devices

6. Open Accessory Protocol
How does USB work?

7. Open Accessory Protocol
How does USB work?
•
•
Host
Slave

8. Open Accessory Protocol
How does USB work?
•
Host
- Is the power source
- Keeps track of connected devices
- Initiates the data transfer
•
Slave
- Communicates with host via
endpoints
- Can draw power from host
- Describes it’s protocols &
capabilities to the host

9. Open Accessory Protocol
How does USB work?

10. Open Accessory Protocol
Using your app with accessory

11. Open Accessory Protocol

12. Open Accessory Protocol

13. Open Accessory Protocol
Accessory Permissions

14. Open Accessory Protocol
Accessory Permissions

15. Open Accessory Protocol
The easy way
Raspberry Pi + powered usb hub + adb

16. Open Accessory Protocol
The easy way
adb shell
am start -a pl.myapp.action.DO_SOMETHING

17. Accessory Demo

18. NFC

19. NFC
Builds upon RFID system by allowing
two-way communication between endpoints

20. NFC
How does RFID work?
Energy
Reader
Data
Tag

21. NFC
NDEF

22. NFC

23. NFC
1. Tag reader/writer
2. P2P (Android Beam)
3. Card Emulation

24. NFC
Android Beam

25. NFC
Android Beam
•
•
Uses Bluetooth for file processing
On Samsung, it’s called S Beam

26. NFC
Card Emulation

27. NFC
Card Emulation
- With Secure Element
- Without Secure Element

28. NFC
Card Emulation

29. NFC
Card Emulation
HostApduService

30. NFC
Card Emulation
HostApduService

31. NFC
Card Emulation
Limitations

32. NFC
Card Emulation
Earlier versions?

33. NFC
Card Emulation
Secure Element

34. NFC
Card Emulation

35. NFC
Card Emulation

36. NFC
Tag dispatch system

37. NFC

38. NFC

39. NFC Demo

40. WIFI

41. WIFI
Arduino Yun

42. WIFI
Arduino Yun = arduino + OpenWrt

43. WIFI
Bridge

44. WIFI
Bridge

45. WIFI DEMO

46. Wrap Up

47. Thank You!
Michał Tuszyński, iOS/Android Developer
Twitter, Github: @srgtuszy