Open-source boards designed in KiCad by BASM on GitHub, from 5 repositories. A board’s address here is its repository’s there.
BASM/MAX-UART
UART driver (MAX232)
BASM/3dprint
3d printer experements
BASM/cp2102
Silicon Laboratories CP2102 breakout board
BASM/sh_term
sh_term
BASM/sh
Smart House