CATkit, a PCB designed in collaboration with GOTO10 and the Huddersfield University Centre of Excellence in Digital Design. This is the first iteration towards a standard platform for teaching Staapl/Forth based embedded application development for PIC18. However, it has some bootstrapping problems that introduce a dependency on PIC programmer hardware and a specific (expensive) USB serial cable that prevent its effective use as an essentially zero-cost platform. I am looking into ways to solve this in a second iteration. The schematics are available here. This circuit is supported by the Sheep software. The PCB layout is freely available upon request. The board hardware is no longer for sale. In return for feedback or collaboration on the Staapl project, I can send you one of the remaining kits as a trade.