For websockets, you need a server that handles the communication. Check the example folders on how to create a server either with Python or with ESP32

01_Server_Python: Runs the server on a laptop using Python. Follow the extra steps required for the Python Websockets server in the README
02_Server_ESP32: Runs a server on a ESP32. Follow extra steps required for ESP32 Websockets server in the README

Sofware installation

You need to have Arduino IDE configured for ESP32 as described in [this link](<https://learn.sparkfun.com/tutorials/installing-board-definitions-in-the-arduino-ide/installing-a-third-party-board-definition).
- Preferences > Settings > Additional Boars Manager URLSs
- Paste in the field the URL: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
This project uses the implementation of Arduino libraries. Go to Tools > Manage Libraries. Search and install WebSockets by Markus Sattler. Read more here: https://github.com/Links2004/arduinoWebSockets
- Example 02_Server_ESP32 also requires installing by Khoi Hoang. Read more here: https://docs.arduino.cc/libraries/wifiwebserver and the specific [README]
- Example 03_Client_Example also requires installing Adafruit NeoPixel by Adafruit. Read more here: https://github.com/adafruit/Adafruit_NeoPixel