There is a link towards the bottom of the page with a schematic which is a bit clearer

http://www.nothinglabs.com/openmelt/meltykytkenta.png

I've just ordered the Baby orangutan B-328 and the serial interface so I can program it.

The only downside to this is that they've used really expensive bits some of which have to come from the states.

I had thought that I'd use an arduino nano but he's specified a 20MHz processor and the arduino is 16MHz.

Just trying to get my head around WinAVR, which doesn't seem to bad.

Soon be time to put the chassis together.