well seeing as how manufacturers of d-sub connecters call DE-9 units DB-9 in data sheets, sometimes 232 is close enough... :roll: hate that game.
Now my purpose is a very small production run, but I will need to update the firmware on the arduino likely fairly often, and inthe field (literally outside) and the big catch I didn't mention is I will have for teh time being two seperate arduinos on the board untill I sit down and optimize my code. Current plan is a single usb cable soldered directly to the board (hate connectivityissues) with a panel mount USB port, along with a 4 position dip switch to swap the output of the usb-ttl converter from one areduino to the next. seems elegant enough, just a shame I need to physically get to the board to do the swap, defeats the sexyness of the panel mount connector. might just double up hte USB ports for now.