The Raspberry Pi was running a VNC server and was operating headless (without a keyboard, mouse or screen)
The Pi was operating as a wireless access point which allowed a Samsung Galaxy Note tablet to connect to the access point in exactly the same way that it would connect to a router. The tablet was running a VNC viewer and was able to access, display and control the Raspberry Pi desktop and enabled the launching, viewing and control of AstroDMx Capture for Linux, running on the Pi via the tablet.
The Raspberry Pi was powered by a SilverCrest 5000mAh Power Bank obtained for about GBP 6. In this case, the Pi was booted from a 240GB SSD obtained for about GBP 25. The SSD is not a necessity, but does provide large amounts of storage for the data being captured.
The imaging setup with a DMK 21AU04.AS camera at the Cassegrain focus of a Skymax 127 Maksutov. The tablet computer and the headless Raspberry Pi can be seen on the table.
The Tablet computer displaying and controlling the Raspberry Pi desktop
AstroDMx Capture for Linux is running and streaming data of Mare Crisium from the DMk camera. The Power Bank and the headless Pi can be seen on the right.
Screenshot from the Tablet computer
The Desktop of the Raspberry Pi is visible behind AstroDMx Capture for Linux, which is streaming data from the DMK camera
Image obtained from a capture SER file
This system provides a low power option for imaging in the field. More experiments will be done, but the system works.
