This is an IoT-based smart home automation system designed to control up to 8 AC appliances through three modes:
- Manual Touch Control (using TTP223 touch sensors)
- Bluetooth Control (within ~10 meters using HC-05 and Android app)
- Cloud Control (from anywhere in the world via ESP32 and custom Android app)
In addition to appliance control, a smart sliding door system with locking mechanism was integrated using a rack and pinion mechanism and solenoid lock. This entire system was implemented and successfully demonstrated in a real-time lab environment.
- Number of Devices: 4 Lights + 4 Fans (total 8 AC appliances)
- Control Methods:
- Manual touch (TTP223 touch sensors)
- Bluetooth control (HC-05)
- Cloud control (ESP32 via Wi-Fi)
- Relay Driver: 8-channel relay module
- Mechanism: Rack and pinion driven by 12V DC motor
- Locking: Solenoid lock
- Control: 3 modes (same as above)
- Driver IC: L293D to control DC motor and solenoid lock
- Built using Android Studio
- Dual Control: Bluetooth & Cloud
- User Authentication: Login and Signup system included for secure access
- Fully custom-designed UI and real-time control
- Fully implemented in the college lab
- Controlled real lab lights, fans, and a sliding door
- Functional and live demo successfully conducted
- ESP32 – For Wi-Fi based cloud control
- HC-05 Bluetooth Module – For short-range wireless communication
- TTP223 Touch Sensors – For manual touch-based control
- 8-Channel Relay Module – To switch AC appliances
- L293D Motor Driver IC – For driving the DC motor and solenoid lock
- 12V DC Motor – For sliding door operation
- Solenoid Lock – For smart locking
- Seamless control of AC appliances using 3 different methods
- Android app development with complete login/signup authentication
- Integration of a smart mechanical door system with electrical locking
- Fully implemented and tested in a real-world lab environment
📁 AndroidApp
└── Complete source code for the Android app
📁 ESP32_Code
└── Arduino/ESP32 code for cloud and Bluetooth control
📁 DoorMechanism
└── Schematics and control code for door motor and lock
📁 Docs
└── Circuit diagrams, flowcharts, and implementation photos
- Add voice assistant support (e.g., Google Assistant)
- Include energy monitoring for each appliance
- Expand to control more appliances using multiplexing
- Real-time notifications for door access or unauthorized entry
This project is open-source.
- Hithaishi S R
- Team Members: Hemanth M G, Prajwal Patil, Sharvan S
For any questions or collaboration proposals, feel free to reach out!
LinkedIn: Hithaishi S R
Email: hithaishisr2002@gmail.com