Great HOW TOs here. While software can reside on a microcontroller, it is my style to execute it on a laptop, allowing the hardware to be simple and flexible. In addition, a laptop has sufficient computing power and a full bodied user interface, so that adequate attention may be given to precise tracking (sub arcsecond over many minutes), precise goto (35 arcsecond rms from horizon to horizon), and all encompasing error correcting routines. My software also tends towards straightforward text interfaces, as complex graphical environments are hard to operate in the dark and injurious to night vision. Finally, the ease of developing software and getting bug fixes and enhancements out to users the next evening should not be underestimated for laptop and PC platforms. Link.
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