IO expantion board design for MegaAvr based simple PLCIt will help designing Hardened low noise I/O ports
File list:
Mega AVR PLC Output Board2
.........................\Library
.........................\.......\.DS_Store
.........................\.......\bc817-40.lib
.........................\.......\crystal.mod
.........................\.......\DO220_AA.mod
.........................\.......\fusivel_resetavel.bak
.........................\.......\fusivel_resetavel.dcm
.........................\.......\fusivel_resetavel.lib
.........................\.......\Relay_833H-1C-C.mod
.........................\.......\relay_dpdt.lib
.........................\.......\relay_spco.bak
.........................\.......\relay_spco.bck
.........................\.......\relay_spco.dcm
.........................\.......\relay_spco.lib
.........................\.......\transorb.lib
.........................\OpenPLC-Output Board-cache.lib
.........................\OpenPLC-Output Board.bak
.........................\OpenPLC-Output Board.brd-bak
.........................\OpenPLC-Output Board.cmp
.........................\OpenPLC-Output Board.dxf
.........................\OpenPLC-Output Board.kicad_pcb
.........................\OpenPLC-Output Board.kicad_pcb-bak
.........................\OpenPLC-Output Board.net
.........................\OpenPLC-Output Board.pro
.........................\OpenPLC-Output Board.sch
.........................\OpenPLC-Output Board2.dsn
.........................\OpenPLC-Output Board2.kicad_pcb-bak
.........................\OpenPLC-Output Board2.ses