Welcome to the CC3D series. This is video is a short intro recorded after the rest of the series was completed. The main software used I the series - Openpilot - sadly 'died' in July 2015 so now the hobby is using one of it's successors.
We are using LibrePilot here (www.librepilot.org). In this series whenever you hear or see us using Openpilot use LibrePilot instead.
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The interface, way it works and capabilities are the same as we use in the videos.
Best of luck with your build! Happy flying!