Home Security Motion Sensor Kit — Native Home Assistant Integration with ESP32 & DHT22

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

With this kit, you’ll build a smart home security sensor that reports motion, temperature, humidity, and actuator state directly to Home Assistant using the ESP32’s native API—no cloud dependency, no MQTT broker needed. The HC-SR501 PIR detects human movement, the DHT22 captures ambient conditions, and the 5V relay can switch a siren, light, or any low-voltage alert. Every data point appears instantly as a Home Assistant entity, ready for automations without extra middleware.

What You'll Build

You’ll create a fully functional wireless security node that streams real-time motion alerts, temperature, and humidity to your Home Assistant dashboard. The relay output can trigger an alarm or notification based on custom rules—like sounding a buzzer when motion is detected after dark. Because the ESP32 speaks the Home Assistant API directly, your sensor appears as binary_sensor.motion, sensor.temperature, sensor.humidity, and switch.relay. You can chain them into advanced automations without writing a single line of YAML.

What You'll Learn

• Programming the ESP32 with Arduino IDE to expose sensor entities via the native Home Assistant API
• Interfacing digital PIR motion sensors and DHT22 temperature/humidity sensors on a breadboard
• Designing stable pull-up circuits with 4.7kΩ and 10kΩ resistors for reliable sensor data
• Building Home Assistant automations that combine motion, temperature, and relay states into practical security logic

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is tailored for intermediate electronics enthusiasts and students in India who are comfortable with basic circuits and want to leap into real home automation. It fits perfectly into B.Tech ECE/EEE IoT projects, Smart India Hackathon prototypes, and ATL Tinkering Lab workshops where ESP32 and Home Assistant are becoming essential skills. If you’re a mentor guiding 15–18 year-olds through sensor programming or a hobbyist building a local-first smart home dashboard, you’ll find the learning curve smooth and deeply practical.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.