Connection to ttyACM0 supported?

[TobyOnGithub]

Hi there, I have connected my AUNO to my linux box and Arduino IDE finds it on port /dev/ttyACM0 (ACMZERO). But in BSP it shows up with a alternating green/red flickering for () and something is plotted. The scetch I have uploaded is
https://github.com/upsidedownlabs/BioAmp-EXG-Pill/blob/main/software/EMGEnvelop/EMGEnvelop.ino

In the terminal from where I have started BSP it writes:
unable to get portstatus: Bad file descriptor

I do set the baudrate to 115200.

Any suggestion what is wrong?

[Mikaburrie]

I'm about a year late, but I figure I'd post this in case somebody else ran into this issue. I had the same issue as you described. The selection for the serial device (ttyUSB0 in my case) was flickering between red and green while plotting some values.

The program has a timeout for reading serial values, and if it doesn't receive anything in a certain time frame, it assumes the serial connection has stopped. Increasing the value of cycle_timeout defined in include/BetterSerialPlotter/SerialManager.hpp to 500000 extends this timeout and solved the issue for me. After doing this, the serial selection stays a solid green color and everything is read properly.

As for the 'unable to get portstatus: Bad file descriptor' error, I think that is due to a bug in the mahi library used for serial communication. When a port is closed, the is_open_ property isn't set to false. When open() is called after closing a port, close() is called again which prints the error.

I hope this helps