I'm trying to get a few demonstrations of the IDE together, as I was planning on making a video about it for my YouTube channel. However, I'm having problems with the "Using Multiple Serial Monitors Simultaneously" example that Arduino provides on their documentation page.
I have tried this using two Arduino Uno's, as well as with a Uno and an Arduino 33 IoT board, and I get the same results. In all cases, I get the text from BOTH boards on each monitor!
In other words, Instead of getting "Hello World!" scrolling on one monitor and "Hello Mars!" on the other one I get both screens displaying "Hello World!" followed by "Hello Mars!".
I have also noticed that the Serial Monitor doesn't really seem to care what port is selected, if I connect either board independently to the computer it displays its results on the Serial Monitor, regardless of which port is selected. Which I'm sure is part of the problem.
I'm using Linux (Ubuntu 20.04) for this, later today I'll try it on a Mac and a Windows computer to see if I get the same results.
Has anyone else observed this?