If you need to do the symlink, you can do it from a shell with: ln -s /dev/ttyACM0 /dev/ttyUSB0
You might need to do that as root. It's been a while, but I think there are some udev rules you can install that handle all this for you. On Sat, Sep 20, 2014 at 8:55 PM, Denis Heidtmann <[email protected]> wrote: > Now that I have the library installed correctly, I get an error after > uploading a test sketch provided by ATAfruit. I get some gibberish in > the serial monitor window for a little while, then the error shows. > The error is: > > processing.app.SerialException: Error opening serial port '/dev/ttyACM0'. > processing.app.SerialNotFoundException: Serial port '/dev/ttyACM0' not > found. Did you select the right one from the Tools > Serial Port menu? > > the first time I received this error, I was directed to a > troubleshooting site > (http://www.arduino.cc/en/Guide/Troubleshooting#upload) which had > among other things to suggest the following: > > On Linux, the Uno and Mega 2560 show up as devices of the form > /dev/ttyACM0. These are not supported by the standard version of the > RXTX library that the Arduino software uses for serial communication. > The Arduino software download for Linux includes a version of the RXTX > library patched to also search for these /dev/ttyACM* devices. There's > also an Ubuntu package (for 11.04) which includes support for these > devices. If, however, you're using the RXTX package from your > distribution, you may need to symlink from /dev/ttyACM0 to > /dev/ttyUSB0 (for example) so that the serial port appears in the > Arduino software. > > What does it mean to symlink from /dev/ttyACM0 to /dev/ttyUSB0, how do > I determine if that is necessary, and if it is, how do I do it? > > Thanks again for the help. > > -Denis > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber _______________________________________________ dorkbotpdx-blabber mailing list [email protected] http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
