Hi everyone, I currently have a WebSocket Server constructed using the mWebSockets.h library on a ATmega328P Arduino Uno with a W5500 Ethernet Shield. This is designed to send a message to a client running in python every time the server is queried by the client. The code for the server is shown be…

InvalidHandshake between Arduino WebSocket Server and Python Client

pylon July 12, 2021, 8:13pm 2

The error message above is not from the Python code above!

The Python code is not a Websocket client.

What else did you change before posting?

Topic		Replies	Views
Arduino Python Ethernet WebSocket General Guidance	2	2065	May 5, 2021
Uno R4 Wifi and WebSockets Networking, Protocols, and Devices	10	1424	January 4, 2025
Arduino - WebSocket \| Arduino Tutorial Programming	13	2913	January 14, 2025
Arduino R4 Wifi / VS2022 TCP Client/Server Programming	17	389	January 19, 2026
Websocket Arduino UNO WiFi rev 2 Programming	4	272	November 16, 2024