I have an Uno which is set up as an Autoguider for a telescope. Not all the pin outs are being used, the question is - could I control focus using the spare pinouts connected to a motor that it is incorporated in a commercial focuser? If so would it be possible to simply include the necessary programming in the autoguiding sketch. What I am trying to avoid is another board in the box that has the Uno installed. Any guidance that can be given would be grately appraciated.
BTW, this forum is excellent, so much happening and such a lot of information going to and fro. I have read most of the faq's but stopped when I reached those going back almost 2 years. It might help me to search by topic.