Make your home a smart home using relay switches and Bluetooth and control your appliances using your android smart phone.
Cheap, Components are easily available int he market.
1.Arduino Uno R3
2.220V relay module
3.HC-05 Bluetooth module
4.5V &12V power supply
6.Appliances to be controlled(say, table lamp)
Step 1: Components
Step 2: Connections
Connect all the components according to the given diagram.
This is two relay module, so a maximum of two appliances can be connected. If you want to connect more appliances you need to add more relay switches or module in the connection.
Step 3: Arduino Code
Step 4: Android App
This App is built using MIT App Inventor.
Either you use the "ON"/"OFF" button or you can text using the space provided.