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Arduino

-                      v1
+                      v2
 [https://www.arduino.cc/ Arduino] is a wildly popular hobby computing platform.  Arduino is open-source and includes:
   * A friendly software development environment that runs on Windows, Mac OS X, and Linux (get it [https://www.arduino.cc/en/Main/Software here])
   * A wide range of single board computers (see [https://www.arduino.cc/en/Main/Products here])
   * A standard stackable [http://www.gammon.com.au/forum/?id=11473 interface] that lets you plug "shields" into the single-board computers to extend their functionality with things like motor control, Ethernet, WiFi, etc.
+  * A wide range of single board computers (see [https://www.arduino.cc/en/Main/Products here]) based on AVR and ARM processors
+  * A standard stackable [http://www.gammon.com.au/forum/?id=11473 interface] that lets you plug "shields" into the single-board computers to extend their functionality with things like [http://www.gearbest.com/other-accessories/pp_218079.html motor control], [http://www.gearbest.com/development-boards/pp_136559.html Ethernet], [http://store.cutedigi.com/juniper-wifi-shield-for-arduino-based-on-gainspan-module/ WiFi], etc.
 You can even develop in the cloud (see [https://codebender.cc/ here]).