.

1. HOME AUTOMATION USING GOOGLE ASSISTANT
UNDER THE GUIDANCE OF
Prof.YOGESHA T
(Asst. Professor)
A Project by
POORNIMA (4VZ22MC063)
Dept of CSE(MCA programme)

2. Introduction
Requirenments
PIN diagram
Block daigram
Advantage & disadvantage

3. • Control of lightening
• Security locks of gates and doors etc.

4. ?
Internet ofThings (IoT) is an ecosystem of connected physical
objects that are accessible through the internet.
IoT platforms which helps to tracking of devices/objects using
sensors and connectivity, they can benefit from real-time insights
and analytics, which would help them make smarter decisions.

6. REQUIREMENTS
NODE MCU
RELAY BOARD
JUMPER CABLE
BREAD BOARD
SMART PHONE
ELECTRIC SUPPLY
BULB

7. Pin diagram of node mcu

8. BLOCK DIAGRAM
Google assistant
Blynk app Node MCU
Relay board
LED bulb

9. Hardware assembly
After installing Blynk app &connecting it through our WiFi using arduino
programing , we can send the voice commands interpreted by Google
assistant directly to the Blynk app, the Blynk app can then forward those
commands to the Node MCU(micro controller unit), Now connect the
Node MCU with the Relay board.
To power up the Node MCU you can use a normal phone charger, just
make sure its voltage is not too high.
And to power up the Relay board, you can use a battery or a
separate breadboard power supplier.
Provide external power supply to the appliances connected with relay
board.

10.  Safety
loss of power can reduce
 Comfort
 Saves money(operating cost) & energy
 Great for the parents
 User friendly system

11. Disadvantages
 Internet system vulnerable to hacking
 Costly(installing cost)
 Human error
 Crushing of system
 Laziness