On 13/12/17 14:13, Mark Rogers wrote:
In case anyone is interested, and/or for anyone finding this in the archives, I've distilled this into a much shorter description and started a thread on the RPi forums: https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=199860
I was going to suggest you ask there. I'm afraid I've reached the end of my knowledge.
Good luck!
Steve