GOOGLE ASSISTANT VOICE ACTIVATED AUTOMATIC CONTROL OF HOME APPLIANCES USING IOT AND NODE MCU

In the modern technology, home automation system makes our lives easier and comfortable because the data can be transmitted or received between the devices by connecting the home appliances with internet (IoT) and can be accessed or operated from anywhere, at any time. Home automation includes controlling aspects of home, remotely through electronic devices. In this paper, we are going to implement the home automation concept which is voice controlled and here “Google Assistant” is used for the voice recognition. Unlike other voice activated home automation systems, in the proposed system the appliances are operated from anywhere without any distance limits as we are using internet for giving commands from Google Assistant to the system which controls the appliances. The Google Assistant takes the user's voice commands as input. “Adafruit IO” is a cloud based IoT web server which is used to create the switches virtually and linked with “IFTTT” which is used for creating simple conditional statements. These statements from IFTTT are added as voice commands for Google Assistant. The entire communication between the devices is based on internet i.e., with Wi-Fi. Whenever the command is given to the Google Assistant by the user, these commands are decoded and passed to “NodeMCU” which in turn controls the relays connected to it. Hence the device or appliance connected to the respective relay can be switched ON or OFF as per the demand of the user.