Working Code for my Sons Busy Box I built. Work in progress.
Code is a mess, was on a tight schedule for xmas 2019. Will update stl files for the control panel plastic inserts/battery compartment.
3d Printing files up on https://www.thingiverse.com/wilksy/designs
SVG for Control Panel with Laser Cut Ready formatting (3mm black acrylic) - can't upload here. you can convert from the stl.