[Ken Olsen] needed a bunch of analog inputs for his model railroad project. He wanted to use the Raspberry Pi board, but alas there are no analog inputs available on the GPIO header. But there is SPI.

One of the biggest problems with home automation is trying to interface with old or analog devices. Do you upgrade the device just so you can automate it? Or do you find a workaround like [Seb] did?

Professional art director Samuel Mello Medeiros has created a new digital backpack which he has designed to transform analogue 35mm cameras into something a little more up-to-date and very special.