I have a machine in a remote location that contains an SD card slot as its only output. I would like to read the output without needing to physically go to the machine and remove the card.
My idea is to place a PC next to the machine and connect the SD card slot of the machine to a USB or serial port or some other input on the PC.
Is there a piece of hardware available will act to the machine like an SD card, but is in fact a cable which can be connected to a computer?
There is a manufacturer of CF cards which store data back to a bluetooth attached storage device. they are intended for use in digital SLR's to store to a bluetooth hard disk.
eye-fi make sd to wifi interface cards; which might replicate your data if it looks kind-of-like video or photos. ( they can provide a cf to sd adaptor that is compatible)
you could probably a solution like this for your purpose.
"I have a machine in a remote location that contains an SD card slot as its only output. I would like to read the output without needing to physically go to the machine and remove the card".
Could you conider a network connection (mount the SD card as a network drive), or something like http://www.uvnc.com/ which will let you see the remote desktop as a window on your own and examine the file in Windowss Explorer, Midnight Commander or similar?
If output is constantlly refreshed, just leave "tail" (Linux command, or http://www.baremetalsoft.com/wintail/ for windows) running in a commad shell.