GarageDoor

Demo Video

Overview

This project demonstrates a DIY smart home solution that enables remote control of an existing garage door system through Google Home integration using an ESP32C3 microcontroller.

The system provides a cost-effective alternative to commercial solutions (which cost $180+), enabling voice-controlled garage door operation without modifying the existing door control system or RF communications.

Project Images

Final Setup

Wall Control Unit

Wall Control Open/Close Switch

Wall Control with ESP32

ESP32 Wiring Diagram

Key Features

• Google Home Integration: Voice command control through Google Assistant via Arduino Cloud integration for seamless smart home operation.
• Non-Invasive Design: Parallel connection to existing wall control switch requiring no modification to the original garage door system's logic or RF communications.
• ESP32C3 Display: 1.28-inch LCD screen displays real-time control status and system information.
• Battery Powered: USB-C powered operation with WiFi and Bluetooth capabilities for flexible placement and connectivity.
• Cloud-Connected: Bidirectional communication with Arduino Cloud enabling remote monitoring and control from anywhere.

Technical Stack

How It Works

The integration chain follows this path: Voice command → Google Assistant → Arduino Cloud → ESP32 GPIO activation → Push button simulation → Garage door control.

The ESP32C3 runs asynchronous MicroPython code that simultaneously handles cloud commands, GUI updates on the LCD display, and GPIO control. The system uses GPIO pin 8 configured as an Open-Drain output, connected in parallel to the existing wall control switch push button via soldered wires.

This elegant solution controls the mechanical switch through GPIO activation without requiring any modification to the original garage door system's logic or RF communications, making it a truly non-invasive smart home upgrade.

Summary

This project successfully demonstrates a cost-effective DIY smart home solution that provides Google Home voice control for garage doors at a fraction of the cost of commercial alternatives. The implementation showcases skills in embedded systems, cloud integration, asynchronous programming, and hardware interfacing.

By leveraging the ESP32C3 microcontroller with MicroPython and Arduino Cloud integration, the system achieves seamless voice control while maintaining the integrity of the existing garage door system. Complete code and wiring diagrams are available on GitHub.