Hi, like I was saying in the serial interface board , I don't understand all the schematics, I see some lines leading to no where and there is no parts list, and some instructions on makeing the Circuit Board and the construction would be nice especially on the Board etching, I can buy a board etching kit if you would do a printout of the board with out the parts so I could print it out and shrink it then trace it on the circuit board I could creat the circuit board then give me a list of the parts needed like the resistors, caps, transistors, chips, and the sockets and connecitons, then a little instrucitons on the set up and or programing, what kind of wire works best I have availability to cat 5, really just a good all around step by step guide to creating it would be great and it would also be helpful to lots of others too....... and this is for the USB one sorry ........