Making a Nucleo board a bit more user friendly

@Manxome, @DrAzzy - I was going to remark about the soldering iron... I've got a very similar Weller one - I've had it for 25 years and it's still going strong :)

It's a really nice board - I really ought to spend more time doing single-sided stuff (I always did mine with a marker pen and a plotter, and never got results that were as nice as that). With surface mount components now you can probably go pretty far without having to drill any holes (especially with 0 Ohm SMD resistors when you need to cross tracks).

I can't wait to see what you get up to with the castellated Picos :)

By the way, were you aware of the Nucleo class? Not much use for what you're doing, but it'll let you access the Arduino-style pins a bit more easily.