I try to communicate with a balance by serial communication RS232.
I send a command "S\r\n" to get the current weight.
It is working properly from my hyperterminal or from a Python script but I can't make it work from Node-red.
I tried to have a Serial input node with "S" as payload and include \r\n in as additional characters for output messages in the serial com parameters ; or include them directly in the payload. But I don't have any answer from the balance.
The serial configuration is well configured because if I choose the continuous mode on my balance I receive data each second.
If you have any ideas to help I'm happy to hear them