/members-area/personalblogs/b/blog/posts/suggested-partsWell so far I have a few parts picked out and I think it is time to order them to do some testing. MCP23017 for interfaceing. ISO7241CDW ISO7241CDW Digital Isolator16-350000-11-RC SOIC-16 to DIP-16 adaptorULN2003AN DARLINGTON TRANSISTOR ARRAY, NPN...en-USTelligent Community 12