#!/bin/bash

avrdude -v  -p m328p  -P /dev/ttyUSB0  -b 38400  -c arduino -e  -U flash:w:$1

exit

where $1 is a filename parameter that I pass using selectInput("Select a .hex file to upload:", "hexFileSelected");

......

}

My script file is in chmod u+x and I also edited propeties of the file to be launched as an application.

...and I have changed the .properites file like this:

launcher=bash

In processing source file I write "RESET\n" on serial port to reset a uC on my electronic board that receive this string and active a WDT that reset itself.

This work well but after the open() method isn't working and doesn't upload a firmware file.

If I insert a script command line on my ubuntu terminal with a right .hex file path the firware is correctly upload and everything works fine.

I don't understand where I wrong.....Can you help me to solve it?