This repository has been archived by the owner. It is now read-only.
Library to communicate with a Mitsubishi Electric G-50A centralized controller
Switch branches/tags
Nothing to show
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.


The library provides some Ruby classes to interact with a Mitsubishi Electric G-50A centralized controller. This device is used to control up to 50 indoor air conditioning units.

The G-50A offers a XML API for the communication.

So far, the library has only been tested with a G-50A. I'm not sure if there are other controller/devices which use the same API.


Mitsubishi recommends to put the controller into a private network. In fact, there's no authentication or encryption needed to access the controller. There's been a post to the BugTraq mailing list in March 2008 regarding that. Archive

Code Examples

Please see the example directory for code examples.

Note on Patches/Pull Requests

  • Fork the project.
  • Write a spec to cover a bug or a new feature.
  • Make your feature addition or bug fix.
  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
  • Send me a pull request. Bonus points for topic branches.


Copyright (c) 2010 Bernd Ahlers. See LICENSE for details.