Voice Controlled Home Automation Using Arduino Circuit Diagram. A 18v battery is used as the primary source of power. 5 volt dc supply is required to switch a relay on and off.
In the circuit arduino board lcd module and leds need a 5v regulated dc while relays need 12v regulated dc for their operation. Thus arduino based voice controlled home appliances proves to be a better remote controlled operation on home appliances using bluetooth module hc 05. The voice activated home automation project is implemented using arduino uno bluetooth and a smart phone.
The bluetooth module has 4 pins.
The supply from the battery will be regulated to 5v and 12v using 7805 and 7812 ics. 3 give 5v supply to bluetooth module and ground it. 5 then give the ac supply to the relay as required. Circuit diagram of voice controlled home automation system using arduino.