ESP32 Home Automation System

I’m building a small-scale home automation setup around an ESP32 and need help turning the idea into a fully working prototype. The system must let me do four things:

• Switch household Lighting on and off remotely
• Read and display live Temperature data
• Monitor basic Home security via motion or door sensors
• Detect Gas leakage and push an alert message immediately

I prefer everything developed in the Arduino IDE with well-commented C++ code, using standard ESP32 libraries and OTA update support. Wi-Fi will be the backbone; MQTT would be ideal for messaging, but I’m happy with HTTP/WebSocket if you have a cleaner approach. A simple mobile-friendly web dashboard or companion Android app is required so I can view sensor readings and toggle relays from anywhere on my network.

Please include:
1. Fully annotated source code
2. Schematic (PDF or Fritzing/Proteus) and a concise parts list
3. Short demo video that proves all four features work
4. Quick start guide covering flashing, wiring, and dashboard/app setup

Acceptance criteria: once I flash the ESP32, I should see live temperature values and sensor states on the dashboard, be able to toggle lights with minimal latency, and receive a gas alert on my phone within three seconds of simulated leakage.

If you’ve already tackled similar ESP32, MQTT, or Blynk/Home Assistant projects, let me know—those references will speed up my decision.