Quote from fredcwGO_BR on October 1, 2026, 5:45 pm

Here is a full example, using two serials (soft + hard) with external terminals and a monitor (lcd) to verify, 

I'm using tty0tty as you will see in the sim2 (/dev/tntX .. ) , . 

 

Your milage will vary 

IME , when in a conundrum of OS, simulating on virtual environment where it's has being tested is more productive. If your stuck with Win11 , use qemu ou vmware to run a linux box inside with a lighweight desktop like xfce4, fluxbox or lxde just to get simulation running. That way you can test everything, without dealing on unknown issues., 
** Just a thought..

In another approach,  on powershell , as admin,   "wsl --install "   
will load an ubuntu into the wsl Windows11 environment, ...  and you will still be in your win11 ..

 

Have a nice day, and wish you success there..

Best regards,

 

Quote from arcachofo on October 1, 2026, 8:00 pm

Quote from erol on October 1, 2026, 4:28 pm

Actually, the real issue is that on Windows 11, SimulIDE transmits (TX) properly, but it doesn't receive (RX). The solution is Linux. Thank you for everything, best regards, E.C.

My friend, ESP32 serial works in both directions for me in Linux and Windows.
So that is not the real issue.

There are 2 real issues here:
- You have not take the time to learn this program, at least what you need for this project.
- You don't seem very interested in understanding the help provided.

And no, you don't need to connect to serial port to test a serial echo.
You just can use a Serial terminal component, indeed is what you should do, at least as a first step.

Quote from erol on October 2, 2026, 10:24 am

Thank you for your suggestion, but unfortunately, I tried that as well. However, to ultimately test my program, I need a serial port connection because I want to use it for communication simulation; that is the main goal. If there is a chance it can work, I would definitely like to use it and add it to my examples.

Best regards,

Quote from sorro on October 2, 2026, 3:54 pm

@arcachofo actually ESP32 UART receiving is not working.
Are you sure you are testing with version SimulIDE2.0.0-260501?