CAN bus controller for autonomous vehicles, connected to caravel and with it's I/O and debug interfaces exposed on I/O pins (developed by Natalia Machado)
picoRF0 - a multicycle CPU core running a simplified RISC ISA (used for teaching, normally on FPGAs). Connected to caravel for memory interfacing and I/O usage
Tiny VGA pong game controller to test I/O interface speed