Forum

Full Version: Loading on stty on startup
You're currently viewing a stripped down version of our content. View the full version with proper formatting.
Hi there,

i am using an Arduino on one of the USB-Ports. Its accessible over /dev/ttyUSB0.

But if i want to communicate with it its restarting every time. So i have to call stty before:
Terminal
/bin/stty -F /dev/ttyUSB0 cs8 9600 ignbrk -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke noflsh -ixon -crtscts

After that i can echo commands to the arduino:
Terminal
echo "blink" > /dev/ttyUSB0

Which is the best way to automate this? I want this be done so i dont have to interact via ssh.

I tried it with udev, but it dont seem to work:
Terminal
ACTION=="add", SUBSYSTEMS=="usb", ATTRS{product}=="FT232R USB UART", ATTRS{idProduct}=="6001", ATTRS{idVendor}=="0403", RUN+="/bin/stty -F /dev/ttyUSB0 cs8 9600 ignbrk -brkint -icrnl -imaxbel -opost -onlcr -isig -icanon -iexten -echo -echoe -echok -echoctl -echoke noflsh -ixon -crtscts"
use /etc/init/tty1.conf as template

cp it to another name - even ardruino.conf

change the getty call for your command line.

also change "start on ......" to "start on startup" (if it is different)
Reference URL's