Build your own Home Assistant smart home hub on a Raspberry Pi 5 and connect a wireless ESP32 sensor using ESPHome. In this beginner-friendly tutorial, I'll show you how to install Home Assistant OS, set up a Seeed Studio XIAO ESP32-C6, connect a DHT11 temperature and humidity sensor, and bring live sensor data into Home Assistant—all running locally on your network without relying on cloud services. This project is designed for beginners who want to learn Home Assistant, ESPHome, Raspberry Pi, and ESP32 development through a real-world smart home example that can be expanded later into a full home automation system.