Well, Frankie is now a complete working prototype, albeit without a box. The issue with the new type of keypad has been resolved. And, Frankie now runs on LiPo battery power, meaning it can be recharged via USB.
The container will be a different shape – it incorporates the keypad and screen in a single unit, about the size of a mobile phone, only a bit thicker. I don’t have Apple’s, or, indeed, Samsung’s resources immediately available. Boohoo.
Now for the tricky part – 3D printing the container. Well, designing it first.