Hi, I am trying to send Python TCP client message to Node-Red TCP Server Node. I am using Python Socket library . But however i am not able to receive the message in my Node-Red TCP in Server Node. I am able to receive Python TCP client message to Python TCP Server via the Python Socket Library. …

Below is my Python TCP Client Source code import serial import socket import datetime import time def connect_to_serial_port(port="COM3", baud_rate=115200, timeout=1): ser = serial.Serial(port, baud_rate, timeout=timeout) return ser def send_scpi_command(ser, command): ser.write(comma…

I'd also say that it looks like you aren't doing anything with Python that Node-RED itself couldn't do? Do you really need/want the extra complexity?

It has been solved, we are sending messages while using Python to listen, whereby we should only listen on only 1 device, and also port number we changed to > 1024. Thank you!

Python Socket library TCP client to Node-Red TCP Server Node not working

General

dceejay 2 October 2023 09:41 3

Ports below 1024 are privileged so you either need to run as root (not advised) or enable access to that port as a user, or choose a port > 1024.

Topic		Replies	Views
TCP connection between Node RED and Python Code for sending and receiveing messages General	8	781	5 September 2022
TCP/IP Server in Node-RED General	6	528	17 October 2022
TCP Server in Node-Red General	11	2942	25 August 2021
Suggestion to handle serial over tcp using nodered? General	5	643	25 October 2022
Basic TCP question - server sending message to client General	2	710	5 November 2021

Python Socket library TCP client to Node-Red TCP Server Node not working

Related topics