XTension has been automating the homes of Macintosh users since 1996! XTension provides more connections to more devices and protocols than any other comparable piece of software.
It's easy to build controls for your lights over there from over here. XTension can do this and so much more. Simple or complex scripts can be attached to any action or change in your list of units. The response can be simple, (when motion is detected on the porch turn on the porch lights for half an hour), or complex, (when motion is detected on the porch and it's dark out, turn on the lights for 30 minutes, if we're not home then take a picture from the camera in the driveway and send it via email to my iPhone email account and turn on the kitchen light for 10 minutes to make it look like someone is at home) by supporting the Apple Script language your scripts can be as simple or complex as you like. Start with the basics and add on and never be limited to the actions we happen to think of and stick into a popup menu of capabilities. You need not fear AppleScript! The simple actions are as simple with any other app and the impossible or impractical with menu driven action systems just require a little more thought.
If you're new to XTension please start at the Getting Started page, otherwise use the index or the search field to find what you're looking for.
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This wiki and XTension are the work of Michael Ferguson and James Sentman