Software - ASCOM OnStep Driver The Beta OnStep ASCOM unified driver (version 1.0.18 supporting Telescope, Focuser, Rotator, Switch and Observing Conditions interfaces) for OnStep release-3.16 and later, is available to download here. Notes: The ASCOM Platform version 6.5 or later should be installed before this driver. Ascom corporate news at your fingertips. Ascom offers to all interested persons a News Service that brings Ascom's corporate media releases directly to the user's desktop or mobile device.
Welcome to the ASCOM Initiative
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This is the home of the ASCOM Initiative, a loosely-knit group of astronomy software developers and astronomy device manufacturers devoted to vendor-independentuniversal plug-and-play control. ASCOM is a many-to-many and language-independent architecture, supported by most astronomy devices which connect to Windows and now Linux and MacOS computers. The diagram below shows how ASCOM differs from traditional astronomy instrument control architectures. This architecture applies to both Windows/COM and cross-platform Alpaca technologies.
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For more information on the ASCOM Initiative, see the About ASCOM section and the navigation menu on the left.