Phil what program are you using for PCB layout? and some more input from RJ on what would be needed for RF interface would be great. even if he just wants a header. what i would like to know is can he make a daughter board that will accept the TX,RX,and the select from RC4 the way it is for wireless TX/RX or if he would need any thing else i will be happy to modify the code for what he needs just for that feature. also the only pins that are locked in and cannot be changed on the chip for the functions are RC6,RC7,RC5 and the crystal. every thing else can be changed at the top of the asm code program . that will make the board layout easyer. in the origional testing of the code all my switches were on port B and the LCD was on ports A and C. i will make a drawing real quick for a visual example.
Rob, i use WinQcad, i like it and have got good at using it now. I'm already bouncing the TX,RX via a 6 pin header that provides 5v and ground for use with Wireless, need to make that a 8 pin to add select, three jumpers to use internal rs485.... now if you then added a switch you could select wired or wireless as required. mmm
I'm happy with the pin assignments for the board layout, i've complicated it with all the headers for various bits. Hand routing it will be simple and tidy it up really well, it will change from the post last night.
Well it will be simple after the 120ch controller i finished couple nights ago... now i know how RJ felt doing the freestyle

Cheers
Phil