Hi Stanley Thanks for your response To be honest I am still struggling- more with being able to use the Stellarmate app However I have thanks to posts on Cloudy Nights and elsewhere found; Option 1 ST4 cable from guide cam to Star Adventurer Guide cam usb to Pi4 usb Imaging camera usb to Pi4 usb Equipment Profile Select Staradventurer Select guide cam- in my case ZWOASI 120 MC Select CCD- in my case Canon DSLR SA set to “star” I have no issue connecting to the Stellarmate hot spot on a laptop using EKOS ( still having issues on the iPad app) Option 2 - this I think I prefer NO ST4 cable Usb from SA to RASPBERRY Pi 4( provides both power and transfers data) Guide cam usb to Pi4 usb ( as before) Imaging camera usb to Pi4 usb ( as before) Equipment Profile Select Staradventurer 2 Pro USB Select guide cam- in my case ZWOASI 120 MC Select CCD- in my case Canon DSLR I am still having trouble connecting my 550D - but the Mount and guide cam connect without a problem Still on the journey but making progress!!!Read More...