Matthew Miller wrote: > This sounds good. IMO, I think the prototype area should be about 3/4 > to 1.5 the size of the board. Sorry, but I don't follow this. How can the prototype area be bigger than the board it's on? Given the number of prototype pads I've shown in the schematic, the prototype area would be about 5 inches wide by 1.5 inches deep. This will dictate the board with, which will probably be 6 inches to allow for rubber feet and mounting holes. I'm planning on the prototype area being at the front of the board with the fixed circuitry in as thin a strip as it will fit in at the back of the board. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist