The roof controller Peter and I are designing for our observatories is continuing to evolve. Peter has it installed and working in his observatory!
A current sensor has been added to the hardware so that the system can monitor the roof's motor current draw and auto-stop on either an under or over current event. A real time clock (RTC) and a SD Card interface was also added to allow status logging.
Roof control and status monitoring is via a web page interface. This page will continue to evolve as new features are added. An example screenshot is shown below.