The UX of Lego Interface Panels - I wish I'd written this
This blog post by George Cave is so good. Best proper blog post I've read in years. I wish I'd written it.
It's not just about Lego, it's about design and interface more broadly. Take this point and the links off to the contrasting Dyson and Audi approach to car interfaces. Dyson - all on one screen. Audi - controls on individual parts.