I have tested my all new raspberrypi to drive my orion atlas mount using skysafari. It works very fine. But the 2 usb ports are occupied one by the usb wifi dongle the other by the Raspberry which handle the mount. To answer a question I have seen somewhere: the handle is needed to make it works.
So there is no other room to connect a cam.
The amount of the installation to drive an Orion Atlas mount is as follow:
raspberry B 42€
box for rpi 10€
wifi dongle 10€
for a total of 76€ (100$) which is the half price of the skyfi orion device (in Europe).
Unfortunately I have read somewhere that the usb inteface is unique and the 2 plugs share the same interface. So there is nothing to wait in term of performance. But maybe it is sufficient for autoguiding.
Anat you are true, the MK808 looks to be a better alternative, wifi, bluetooth are included in device. But unfortunately there is only one usb plug. It would have been fun to make acquisition with the same device as the one that autoguide and drive the mount. But it seems not to be done even with the MK808.
Congrats for the Skyfi setup !
Both Raspberry Pi and MK808 works with a powered usb hub. In my setup I use:
QHY6 for autoguiding
QHY8L or DSLR for image capturing
USB-serial adapter for mount control
USB sound adapter
connected to a hub without any problem.