Home automation system is a means that allows users to control electric appliances of various kind. The most common usage scenario of a home automation system is lighting control, These can be used as a replacement of the existing switches in home. There are other technologies such as Infrared, RF, Bluetooth, Zigbee communication but WI-FI has certain advantages over these technologies.
Considering the advantages of Wi-Fi an advanced automation system was developed to control the appliances in the house. It is a wireless technology that uses radio frequency to transmit data through the air. Wi-Fi has initial speeds of 1mbps to 2mbps.Wi-Fi transmits data in the frequency band of 2.4 GHz. It implements the concept of frequency division multiplexing technology. Range of Wi-Fi technology is 40-300 feet. The controlling device for the automation in the project is a Microcontroller. The data sent from PC or handheld Android Device over Wi-Fi will be received by Wi-Fi module connected to Microcontroller. Microcontroller reads the data and performs the switching action of electrical devices connected to it through Relays and current driver circuit.
Advantages of Wi-Fi Communication :
1. Wi-Fi is user-friendly interfacing.
2. Low power consumption.
3. Controls high and low voltage devices.
4. Long life.
5. Reduced installation costs.
6. Easy implementation,installation, and coverage.
7. System scalability and easy extension
Software Tools:
- ARDUINO IDE
- EMBDDED CPP CODE
- PROTEUS SIMULATOR
Hardware :
- ATMEGA328 Microcontroller
- ESP8266 Wi-Fi Module
- Relays
- AC Loads
- ULN2803 Current Driver