ESP32 Home Assistant Integration Kit — Build Native Smart Home Sensors Without an MQTT Broker

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Go beyond MQTT-based sensors and create a truly native smart home experience. This kit lets you build an ESP32 node that exposes DHT22 temperature and humidity, PIR motion detection, and a four-channel relay directly to Home Assistant’s API — each appearing as a standard entity you can automate instantly. Ideal for engineering students and makers who want a clean, low-latency integration without the overhead of a separate broker.

What You'll Build

You’ll assemble and program an ESP32 breakout that integrates seamlessly with your existing Home Assistant setup. The finished unit monitors room climate, detects movement, and controls lights or appliances via the relay — all visible and operable from your dashboard. A crisp 0.96-inch OLED displays real-time sensor data and system status, while the LM2596 buck converter delivers stable power from a standard 5V adapter, making the whole unit safe and compact inside the included enclosure.

What You'll Learn

• Program an ESP32 to communicate directly with the Home Assistant native API — no MQTT broker required
• Read precise temperature and humidity values from a DHT22 digital sensor and format them for automations
• Configure an HC-SR501 PIR motion sensor to trigger events and binary sensors in Home Assistant
• Drive a 4-channel relay module to switch mains‑powered appliances safely, with diode protection

Kit Contents