Focuser Pro is NOT open source (at least not for a DFSG definition of the term). It is personal / academic use only at best and a copyright nightmare at worst, e.g. it states in myfocuserpro2-designs.pdf: "The schematic, code and ideas are released into the public domain. Users are free to implement these for their personal use, but may NOT sell projects based on (or derived from) this project for commercial gain without express written permission granted from the author." Then it goes on to state that "you cannot sell kitsets or assembled units to others". If the first sentence was true, none of the restrictions would be possible. In other documentation the source code is MIT, which allows commercialization.

For this reason I went with ardufocus.com/, which _is_ Open Source (GPL, as long as you don't use the PCB, which is CC-BY-NC-SA). This one is supported by the moonlite focuser driver, which is part of indi.

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