2 layers36.4 × 31.8 mm

MB9X UART
famicomical/MB9X-UART
In-system Serial Programming Adapter for Fujitsu F2MC-16LX microcontrollers
15 parts6
Open-source boards designed in KiCad by famicomical on GitHub, from 2 repositories. A board’s address here is its repository’s there.

famicomical/MB9X-UART
In-system Serial Programming Adapter for Fujitsu F2MC-16LX microcontrollers

famicomical/USB_CopyNES
KiCad 9 recreation of the Sealie USB CopyNES V4 (rev D), traced from the original PCB