ESP32 is a 4$ only microprocessor, it is a NON-Arduino microprocessor with built-in WiFi and Bluetooth, and you can work with it without electronic knowledge. Anyone with only expertise in Python can program and build a networking chip for monitoring your home network or a security infiltration tool that can hack WiFi networks or anything else – the sky is the limit! In this lecture, I will explain ESP32 and show a code and demo of the practical and fun projects you can build with it.