C/C++ESP32HTMLCSSJavaScriptSocket.ioNode.jsExpress

One Touch Solution

A multi-node IoT home automation system where two ESP32 controllers coordinate over Wi-Fi, stream live sensor data to a custom web dashboard, and drive AC appliances through a relay module using web, touch, or IR control.

Overview

End-to-end embedded control from firmware to live dashboard

Most DIY home automation setups handle either remote switching or basic sensing, but rarely combine multi-node coordination, fused sensor alerts, and several independent control paths in one cohesive system.

Built a two-ESP32 architecture that communicates over Wi-Fi and pushes live readings to a Node.js + Socket.io backend. The custom web dashboard displays temperature, gas levels, and perimeter breach alerts in real time, while MQ gas/smoke, DHT temperature, LDR + laser perimeter, IR, 2×7-segment display, and buzzer modules feed a unified monitoring layer. Appliances are switched through a relay module that accepts WebSocket commands, capacitive touch input, or IR signals from any configured TV remote.

The project demonstrates full-stack IoT ownership—from C++ firmware and sensor hardware through a real-time backend to a live control interface—with safety alerts and flexible local/remote appliance control.

Features

Multi-node IoT architecture

Two ESP32 microcontrollers coordinate over Wi-Fi and connect to a real-time WebSocket server for synchronized sensing and control.

Live web dashboard

A custom browser interface shows temperature, gas levels, and perimeter breach alerts as sensor data streams in over Socket.io.

Multi-sensor fusion

Combines MQ gas/smoke detection, DHT temperature sensing, LDR + laser perimeter security, IR input, a 2×7-segment display, and a buzzer alert system.

Multi-modal appliance control

Control AC appliances through three independent inputs—internet via WebSocket, capacitive touch, or IR from any TV remote configuration—routed to a relay module.