Physical Computing with Android and IOIO
- 1. Physical Computing with Android Arjan Scherpenisse MiracleThings http://miraclethings.nl/ 10 september 2011
- 3. Android
- 5. About me Mixed background Computer science (AI, UvA class of 2005)
- 6. Unstable Media Art (Rietveld, class of 2009) Have worked for Mediamatic for 3+ years
- 7. Now: independent software developer
- 8. Physical Computing Definition: “building interactive physical systems by the use of software and hardware that can sense and respond to the analog world.” (wikipedia)
- 9. Physical Computing (2) Sensor (input) Actuator (output) World Device
- 10. Physcomp = popular Many different platforms out there Arduino
- 11. Wiring
- 12. Fritzing
- 13. Phidgets
- 14. … Arduino makes it easy Plug&play, accessible software, many examples Need some electronics knowledge
- 15. hacking a knitting machine... http://miraclethings.nl/id/852
- 16. ...to knit the score board of a game
- 17. Playing ping-pong over the internet
- 18. ...using a DIY pingpong-ball canon
- 19. Physcomp roundup Lots of possibilities!
- 20. Mediamatic Atelier has sensors, motors, etc, etc, etc
- 21. Android Popular mobile phone OS by Google
- 22. Personal Android experience IkPod 2.0 app Nexus S-based RFID multimedia guide 1.0 2.0
- 23. Personal Android experience IkCam app mobile IkTag photo booth
- 24. Android ♥ physcomp Google's OpenAccessory protocol With reference implementation (ADK) IOIO board Released earlier than OA
- 25. 3rd-party board; needs USB debugging on
- 26. Might work with OA (beta; ymmv)
- 27. IOIO vs. OpenAccessory IOIO's pro's: Android >= 1.6 (vs. OpenAccessory >= 2.3.x)
- 28. Filesystem access to host board
- 30. Simpler interface on android side OpenAccessory's pro's: Better performance (thruput/latency)
- 31. Does not require USB debugging hack
- 32. Allow apps to be notified on gadget connect
- 33. IOIO Provides 48 input/output pins
- 34. Software runs on your phone – not on the board
- 35. Many pins have extra functions
- 36. Needs external powering (Can charge the phone)
- 37. IOIO (2) Board needs DC adapter/battery between 5-15V on VIN or directly connected to stable 5V source
- 38. Pins only supply 3.3V output
- 39. Enable USB debugging on your phone
- 40. Made With IOIO “ soccer” playing robot http://www.youtube.com/watch?v=qY4b5sIrGKw LED wekker http://www.youtube.com/watch?v=8sAvXCfEj3s Autonomous RC car http://www.youtube.com/watch?v=-H6MtevUjBg Search “IOIO android” on Youtube
- 41. Digital Output Simple 3.3V digital output: Pin -> LED -> 220Ω -> GND 5V digital output: Needs 5V-tolerant pin!
- 42. Digital Input Input pins can be in 3 modes: Pull-up
- 43. Pull-down
- 44. Floating (need to pull up/down yourself, like Arduino) Only put 5V input on 5V-tolerant pins!
- 45. Advanced IOIO Analog inputs Like http://www.arduino.cc/en/Tutorial/AnalogInput UART Communicate w/ other devices (e.g. arduino!) over serial port PWM “ analog output”, e.g. LED brightness
- 46. Demonstrate IOIO example project Fixme.
- 47. IOIO Getting started http://www.sparkfun.com/tutorials/280 , or in a nutshell:
- 48. Install Android Development Environment
- 49. Download IOIOLib from https://github.com/ytai/ioio
- 50. Create new Android project w/ imported IOIOLib on build path
- 51. Write your app – or modify existing example
- 52. IOIO go go go Good Luck & Have Fun!