IOT Home Automation using Arduino | Circuit Diagram | Best Engineering Project

#iothomeautomation #iot #homeautomation
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1. Synopsis/ Documents
2. Block diagram and circuit diagram with explanation.
3. Bill of material.
4. Components Specification list
5. Working principle of the project.
6. Datasheet of all components.
7. Program/code of Arduino with training.
8. Complete Working principle description.
9. Complete interfacing description.
10. you can get the project by courier.
11. viva preparation
ask us if other things needed.
Description
This project has an Arduino with an ESP8266 Wi-Fi module, sensors to manage a home. It uses a 4-channel relay to control two bulbs and a 4V DC motor. A DHT11 sensor monitors temperature and humidity, while an MQ135 sensor checks air quality, and a PIR sensor detects motion. The data from these sensors is displayed on a 16x2 LCD and sent to a web server via the ESP8266(Wi-Fi). In case of smoke detection, a servo motor opens the house door for emergency access. Users can control relays and view sensor data remotely via a mobile app.
**Objectives**
Remote Control
To enable users to control home appliances remotely via a mobile app connected through the ESP8266 Wi-Fi module.
Real-Time Monitoring
To provide real-time updates on environmental conditions and air quality through a 16x2 LCD and a web server.
Security Alerts
To detect unauthorized motion with a PIR sensor and alert users or activate security measures as needed.
Emergency Response
To automatically open the house door with a servo motor in response to smoke detection from the MQ135 sensor, ensuring quick access in emergencies.
**Working**
In this project, Arduino manages a 4-channel relay module, which controls various loads: two bulbs and a 4V DC motor. Each bulb’s is connected by one of the relay channels, with one terminal of each bulb connected to the relay and the other connected to an AC supply. The DC motor is similarly controlled, with one terminal connected to the relay and the other to a 4V battery. An ESP8266-01 Wi-Fi module connects the system to a mobile application, allowing users to control ON and OFF of bulbs and motor from buttons present in the application. This module also hosts a web server that displays data from various sensors. The DHT11 sensor measures the temperature and humidity inside the home. PIR sensor detects motion within the home. If motion is detected, the system trigger alerts for security measures. MQ135 sensor monitors air quality by detecting gases like carbon dioxide and smoke. High smoke levels will trigger a servo motor attached to the house door to rotate and open the door, providing an emergency exit. All sensor readings, including temperature, humidity, air quality, and motion detection, are simultaneously shown on the 16x2 LCD and the web server via Wi-Fi. This setup ensures that users have real-time information.
**Components requires**
Arduino (Microcontroller)
4 channel relay
PIR sensor
DHT-11 sensor
MQ-135 sensor
ESP8266-01 module
4V DC motor
Bulbs (X2)
LCD 16X2
Connecting wires
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