Controlling an Arduino with Android

Controlling an Arduino with Android

• 1.
  Android Communications withArduino
• 2.
  Two Aspects Arduino: ● Receiving commands ● Switching pins on/off Android: ● Send commands
• 3.
  Arduino Equipment ●Arduino card(s) ● Arduino WiFi shield(s) ● USB a-b cable(s) o for power and program uploads
• 4.
  Android Equipment ●Android tablet/phone ● Android stock USB cable o for program uploads
• 5.
  Arduino Software ●Arduino IDE o version 1.0.5 o for Windows, Mac, and Linux
• 6.
  Android Software I There is a choice to be made here: ● Android Developer Tools (ADT) o more accessible to beginners o older ● Android Studio o more powerful o unstable
• 7.
  Android Software II ● Portable Wi-Fi hotspot Free o Creates wireless hotspot  Local, no satellite o an app for the Android device o by Core Technology o available on Google Play
• 8.
  Arduino Programming ●C syntax ● Very limited ● Extended with C++ libraries
• 9.
  Android Programming ●Java programming language ● Relatively simple ● Intimidating for beginners
• 10.
  Android: It’s justJava ● Android is just an interface. ● This code can be used wherever Java is supported.
• 11.
  Network ● Thisis not programmed ● The Android device is the router ● The Arduino cards are assigned IP addresses ● Everything over a hotspot o Portable Wi-Fi hotspot Free
• 12.
  Hotspot Pros ●Simple ● Leave the job up to another app
• 13.
  Hotspot Cons ●Credentials are hard-coded for Arduino cards o change source code for new networks ● Not as reliable as other protocols ● Extremely roundabout ● Dependent on another app
• 14.
  UDP ● UserDatagram Protocol ● One-way communication ● Used for sending commands
• 15.
  Network: The RightWay ● Bluetooth ● mDNS - multicast Domain Name System o Used by Google Chromecast
• 16.
  Final Arduino toApp Logic 1. Start Portable Wi-Fi hotspot Free on host Android 2. Turn on Arduino boards 3. Turn on Android app 4. Wait for Arduino boards to connect 5. Send commands
• 17.
  Final Thoughts ●Arduino boards are simple to program ● Android programming is the hard part ● The networking portion can be vastly improved
• 18.
  Fork it onGitHub! The projects can be found here: ● Arduino code - https://github.com/pori/arduino-udp-client ● Android code - https://github.com/pori/ArduinoControllerExa mple
• 19.
  Useful Resources ●Arduino website for downloads and tutorials - http://arduino.cc/ ● Android development (choose one): o Android Developer Tools - http://developer.android.com/sdk/index.html o Android Studio - https://developer.android.com/sdk/installing/studio.html ● Android source code - https://github.com/pori/ArduinoControllerExample ● Arduino source code - https://github.com/pori/arduino-udp-client