Hi,

i am trying to get youbotbatterymonitor running on my youbot. The README (cannot post link, please check yourself on google) says i could run youbotbatterymonitor as standalone program. But when i try to run it with

$ ./home/youbotuser/Software/catkinws/devel/lib/youbotbatterymonitor/youbotbatterymonitor /dev/youbot/lcddisplay eth1 wlan0 &

it says "could not to connect to serial port: /dev/youbot/lcd_display"

I wrote a udev rule 110-battery.rule:

SUBSYSTEM=="usb", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="059d", SYMLINK+="youbot/lcddisplay", RUN+="/home/youbotuser/Software/catkinws/src/youbotdiagnostics/youbotbatterymonitor/youbotbattery_monitor.sh"

My youbotbatterymonitor.sh looks like this:

#!/bin/bash

export ROSMASTERURI=http: //localhost:11311

/home/youbotuser/Software/catkinws/devel/lib/youbotbatterymonitor/youbotbatterymonitor /dev/youbot/lcddisplay eth1 wlan0 &

The udev rule seems to be working. It at least generates the /dev/youbot/lcd_display file. But i am not really sure about using SUBSYSTEM=="usb"?!

I don't use the youbot that long yet. I'd really much appreciate any help. Thanks a lot.

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Edited after ahendrix 2nd comment:

I think i finally solved the problem why it cannot connect to the serial port. But it is still not running properly yet. I can execute youbotbatterymonitor.sh by typing "sudo bash youbotbatterymonitor.sh". I obviously needed the root rights i got by adding sudo.

This is the output i get then:

sudo bash youbotbatterymonitor.sh

youbotuser@Jakobs-youBot:~/Software/catkinws/src/youbotdiagnostics/youbotbatterymonitor$ try to connect to serial port: /dev/youbot/lcd_display

serial port /dev/youbot/lcd_displayis already open

connected to serial port: /dev/youbot/lcd_display

[W ]

[L ]

[W ]

[L ] ....

Every time it prints [W ] and [L ] it is beeping.