The DigiX uses the Arduino IDE 1.6.5+ (Arduino 1.6.5r2 - NOT 1.6.6 or 1.6.7 strongly recommended)

• First download the appropriate Arduino package at the Arduino.cc website: https://www.arduino.cc/en/Main/Software
• If using Arduino 1.6.6 or higher and windows - download, unzip, and run “Install Drivers” from here: https://github.com/digistump/DigistumpArduino/releases/download/1.6.7/DigistumpDrivers.zip
• Install or Unzip the Arduino application.
• Run the Arduino application.
• In the Arduino application go to the “File” menu and select “Preferences”

• In the box labeled “Additional Boards Manager URLs” enter:

  http://digistump.com/package_digistump_index.json

and click OK

Note: If you already have additional URLs entered in that box, then click the button on the right of the box and enter this URL on a new line.

• Go to the “Tools” menu and then the “Board” submenu - select “Boards Manager” and then from the type drop down select “Contributed”:
• Select the “Digistump SAM Boards” package and click the “Install” button.

• You'll see the download progress on the bottom bar of the “Boards Manager” window, when complete it will show “Installed” next to that item on the list.
• WINDOWS USERS: When complete the install with pop up a Driver Install Wizard window, please click “Next” on this Window to install the drivers for Digistump Boards (If you already have them installed, this installer will update them and install any that are missing)
• With the install complete, close the “Boards Manager” window and select the “Digistump DigiX” from the Tools→Boards menu.

• The install is now complete! (Linux users see note below)

Digistump Package Sources: https://github.com/digistump/DigistumpArduino

Plug it in and away you go! It works like other Arduino boards, serial monitor works as well. Check out the examples as well as the other tutorials here and the “Due Only Libraries” here: http://arduino.cc/en/Reference/Libraries for some of the cool features.