ICE40 shield for Raspberry Pi with published KiCAD project. This board is an
OSHWA approved design: NO000002 Open-source toolchain for Verilog - yosys. All Raspberry Pi IOs + PMOD + 5 LEDs.
Quick Start Guide:
https: //www. hackster. io/lightside-instruments/the-ice4pi-ice40-raspberry-pi-hat-b24c2f