Hello, sorry for the delay, I was able to test the modbus and with utmost satisfaction now everything is OK!

Thank you

Hi, with the latest updates the problem has been solved, thanks to the FC team!

Ok perfect, thanks. .. but I have to note a problem on the ESP32 when using port 2 or 3: In file included from C: \ ProgramData \ MatrixTSL \ FlowcodeV9 \ CAL \ includes.c: 1469, from ../main/esp-project.c:238: C: \ ProgramData \ MatrixTSL \ FlowcodeV9 \ CAL \ ESP \ ESP_CAL_UART.c: In function 'uart...

FANTASTIC!! now the 32U4 works too! ESP32 ok! Thank you very much, for me this tool is formidable and allows me to test and or produce "simple" works in a short time. I forgot to add "test and debug" when I placed the order, this morning I bought it, now I don't understand why it...

Hi, thanks for the help, unfortunately I can't get answers from the slave, obviously I made the FC updates, it seems that the serial does not hear incoming data. I made a test program with the simple serial to remove the doubt of the pins, and it works well. I did tests with ESP32 wrom32 development...

I added a check on the error in reception "255", but this is also ignored ..

the project I attached in the post with the two photos is the one I use (ASCII)

unfortunately the request is ASCII, I tried to compile RTU (for test), but the result does not change ..

even this has no answer

here is the program, practically the same as the example from which I removed the LEDs, and a photo of the message sent to which no response follows.