They have created a standard for all this Tools of observation. Actually most of the free and non - free software planetariums that allow control a telescope use this software.

A list of supported devices and controllers may be found here:
http://ascom-standards.org/drivers.html

The Ascom Platform project allows the use of «dll» libraries for programmers to use in scripting, under Unix, Mac and Windows.

«ASCOM Initiative Mission Statement (goals)

1. Establish a set of interface standards for scriptable or programmable low level control of astronomical instruments and related devices, and promote the use of these standard drivers from astronomy- related software applications.
2. Provide a freely available set of instrument drivers that implement the standards established in (1). These drivers must be usable apart from any particular application, and directly from Windows Active Script languages and Automation based tools.
3. Promote (but not absolutely require) open-source implementations of the drivers in (2).
4. Promote scriptability of astronomy-related software without standardizing application level interfaces (which would inhibit innovation). ASCOM does provide general requirements for quality and behavior of application scripting interfaces (including drivers), aimed at making end-user script writers' experiences consistent and robust.»