As you're on Linux, the port number assignment is probably tagged to the specific usb bus port and ca change. You can have them assigned to the same serial port # each time if you create a little udev rule for both the arduino and the serial port adapter and specify what you want them to be or create a symlink to say /dev/ttyArduino & /dev/ttyLCD ...
See http://playground.arduino.cc/Linux/Udev & http://reactivated.net/writing_udev_rules.html On Jun 5, 2013, at 2:57 PM, [email protected] wrote: >> It is probably much simpler to use a separate USB to serial adapter. >> Those work out of the box with Ubuntu and you only have to change the >> serial port name in your patch. > > Yes, that works fine but it mixes up the port number of the arduino and the > serial adapter. I can't get the two to be assigned to the same port number > each time Pd starts. They both show up as /dev/ttyUSB0 or /dev/ttyUSB1 on > the [comport]. > > It also would be cleaner with less cables to have the arduino taking care of > the serial data transfer. If I can't get that to work I'll have to use a > serial adapter and find a good way to distinguish the two automatically. > > Ingo -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com
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