1. IOT based Home Automation Over the Cloud
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2. ABSTRACT
The main purpose of this project is to control any load through the Internet network over cloud remotely on the basic principle of the Internet of things (IOT).
For this real-time scenario we use webpage with user configurable front end to control and monitor the load.
The data sent from from a password protected webpage returns commands through allotted IP fed to it.
A Wi-Fi Module is configured with any nearby wireless modem to access internet. The received internet commands are fed to the Wi-Fi module.
The program within the Wi-Fi Module execute the received commands based on which the load gets activated through TRIAC and Opto-coupler interfaced to Wi-Fi Module.

3. Introduction
The main objective of the project is to develop a load control.
The microcontroller is a ESP8266 from Espreff systems,china
This is the state of the art microcontroller which is the first of its kind to have an inbuilt wifi transceiver and a microcontroller
which also receives commands from any remote location web access
to control the electrical loads

4. Contents Introduction Block diagram Hardware requirements
Power supply 5VDC SMPS
ESP8266 WIFI
Opto isolator
Relay
Schematic diagram
Working of the project
Advantages
Applications
Conclusion

5. ABOUT ESP IN BRIEF
Espressif Systems’ Smart Connectivity Platform (ESCP) is a set of high performance,. It provides unsurpassed ability to embed WiFi capabilities within other systems, or to function as a standalone application, with the lowest cost, and minimal space requirement.
ESP8266EX offers a complete and self-contained WiFi networking solution; it can be used to host the application or to offload WiFi networking functions from another application processor.
When ESP8266EX hosts the application, it boots up directly from an external flash. In has integrated cache to improve the performance of the system in such applications.

6. …..contd
Alternately, serving as a WiFi adapter, wireless internet access can be added to any micro controllerbased design with simple connectivity (SPI/SDIO or I2C/UART interface).
ESP8266EX is among the most integrated WiFi chip in the industry; it integrates the antenna switches, RF balun, power amplifier, low noise receive amplifier, filters, power management modules, it requires minimal external circuitry, and the entire solution, including front-end module, is designed to occupy minimal PCB area.
ESP8266EX also integrates an enhanced version of Tensilica’s L106 Diamond series 32-bit processor, with on-chip SRAM, besides the WiFi functionalities. ESP8266EX is often integrated with external sensors and other application specific devices through its GPIOs; sample codes for such applications are provided in the software development kit (SDK).

7. BLOCK DIAGRAM OF ESP8266

8. BLOCK DIAGRAM OF THE PROJECT

9. Hardware requirements
TRANSFORMER (230 – 12 V AC)
VOLTAGE REGULATOR (LM 7805)
RECTIFIER
FILTER
BUILT IN MICROCONTROLLER
RELAY
LED
NPN TRANSISTOR,1N4007, RESISTOR
CAPACITOR

10. Hardware Components description
V AC
50 Hz
12V step down
transformer
2. Using In4007 as Bridge rectifier
3. Capacitors Filter(470µf)
4. 5v Regulator
5. Relay

11. 9. LED
10. RESISTOR

12. 11. Capacitor

13. Power supply

14. Description of power supply
The circuit uses standard power supply comprising of a step-down transformer from 230v to 12v and 4 diodes forming a Bridge Rectifier that delivers pulsating dc which is then filtered by an electrolytic capacitor of about 470microf to 100microF.
The filtered dc being un regulated IC LM7805 is used to get 5v constant at its pin no 3 irrespective of input dc varying from 9v to 14v.
The regulated 5volts dc is further filtered by a small electrolytic capacitor of 10 micro f for any noise so generated by the circuit.
One LED is connected of this 5v point in series with a resistor of 330ohms to the ground i.e. negative voltage to indicate 5v power supply availability.

15. Relay A relay is an electrically operated switch.
Current flowing through the coil of the relay
creates a magnetic field which attracts a lever and
changes the switch contacts.
The coil current can be on or off so relays have
two switch positions and have double throw
(changeover) switch contacts as shown in the
diagram.

16. WORKING OF THE PROJECT
The data sent from from a password protected webpage returns commands through allotted IP fed to it.
A Wi-Fi Module is configured with any nearby wireless modem to access internet.
The program within the Wi-Fi Module execute the received commands based on which the load gets activated through TRIAC and Opto-coupler interfaced to Wi-Fi Module

17. ADVANTAGES HIGH EFFECIENCY THAN THE EXISTING SYSTEMS
COMPACT AND CAN FIT INTO VERY VERY SMALL PLACES
EASY AND FLEXIBLE TO OPERATE
CHEAPER AND HIGH RELAIBILITY

18. APPLICATIONS
HOME AUTOMATION
INDUSTRIAL AUTOMATION
AND MANY MORE….

19. CONCLUSION

20. BIBILOGRAPHY www.beyondlogic.org www.wikipedia.org

21. QUERIES ?

22. THANKYOU