Communication issue between Arduino and Tauno serial Plotter

[YoullDuk]

Hi, Thank you very much for your work :) I have an issue with the serial plotter when I run it using snap or flatpak on my Ubuntu 22.10. I am new to Linux interface.

**Problem : When I lauch the plotter, no data is plotted and no point appear on the graph.**

This is the message I get when i lauch the serial plotter from my cmd :

DEBUG:root:Found: 0 lines
DEBUG:root:Init Plot class. With 0 plot lines.
DEBUG:root:0 Open serial: /dev/ttyUSB0 115200
DEBUG:root:1 Open serial: /dev/ttyUSB0 115200
DEBUG:root:ForeverWorker.Run while loop
DEBUG:root:self.plot_exist True
DEBUG:root:self.is_button_connected True
DEBUG:root:before_selected_port /dev/ttyUSB0
INFO:root:read_serial_dat: Incoming data: Initializing SD card...Initialization succedeed.

DEBUG:root:numbers: 0
INFO:root:read_serial_dat: Incoming data: 14,1.41,4.57

DEBUG:root:numbers: 3
INFO:root:read_serial_dat: Incoming data: 14,1.41,4.57

DEBUG:root:numbers: 3
INFO:root:read_serial_dat: Incoming data: 14,1.41,4.57

DEBUG:root:numbers: 3
INFO:root:read_serial_dat: Incoming data: 14,1.41,4.57

DEBUG:root:numbers: 3
INFO:root:read_serial_dat: Incoming data: 14,1.41,4.57

Important

• I am able to plot those same data on Arduino IDE plotter on the same computer using the same USB port
• I installed platformio as mentionned in the requirements
• I carefully followed the connection requirements on usb using :

  sudo usermod -a -G dialout $USER
  sudo snap connect tauno-serial-plotter:raw-usb

  How could I fix this issue ? Thanks

[taunoe]

My first thought: When you are serial printing try using something else instead of a comma (,) maybe dash - or _ Like 14_1.41_4.57

[YoullDuk]

Hi, Thank you very much with your fast answer. The separator was the issue. "_" works fine on my project :) Is it possible to set a label for each curve ? Thank you for your plotter !

[taunoe]

Unfortunately, labels cannot be added now. Maybe later when I have more time to develop it.