http://www.arduino.cc/
http://en.wikipedia.org/wiki/Arduino
https://learn.sparkfun.com/tutorials/what-is-an-arduino
https://code.google.com/p/arduino/
http://www.robotshop.com/en/dfrobot-4wd-arduino-platform-encoders.html
http://readwrite.com/2014/05/07/arduino-vs-raspberry-pi-projects-diy-platform
http://www.practicalarduino.com/
http://www.practicalarduino.com/projects/vehicle-telemetry-platform