Avdhesh kumar meena NIET ALWAR

1. Smart Home Appliance
Control
Guided by:
Neha Mukhija
(AP-EC Department)

2. Team Members :
• Avdhesh Kumar Meena
• Ghanshyam
• Harimohan
• Nidhi
• Parvinder
• Shubham

3. CONTENTS
1. Automatic Street Lights using LDR
2. Micro-controller control kit
 AT89C52
 ULN 2003
 Relay
 Crystal Oscillator
3. Solar energy
4. Inverter
5. Bluetooth based control
6. Smart home appliance

4. 1.Automatic Street Light Control Using LDR
LDR- Light Dependent Resistor/Photo Resistor
LDR is made of a high resistance semiconductor (MΩ).
 Applications:
 Street light, Camera light meter,
Solar street lamps and solar road
studs, etc

5. LDR Circuit

6. 2.Micro-controller control kit
AT89C52
ULN 2003
Relays
Crystal Oscillator

7. AT89C52
 This is an 8-bit microcontroller
 it can be erased and programmed to a maximum of
1000 times.
• The pin configuration of AT89C52 is exactly similar to
that of AT89C51 .
AT89C52 AT89C51
RAM 256 Bytes 128 Bytes
Flash 8 KB 4 KB
Number of
Timers/Counters
3 (16-bit each) 2 (16-bit each)
Number of Interrupt
Sources
8 6

8. ULN2003A:
 The ULN2003A is an array of seven
NPN Darlington transistors capable of
500 mA, 50 V output.
ULN2003 is a high voltage and high current
Darlington array IC.
It contains seven open collector darlington
pairs with common emitters.

9. Relays
 A relay is electro mechanical device that
is actuated by an electrical current.
 The current flowing in one circuit causes
the opening or closing circuit.
 which is used for switching between
5 volt circuits and 220/ 120 Volt AC
circuits.

10. Crystal Oscillator
 A crystal oscillator is an
electronic oscillator circuit that uses the
mechanical resonance of a
vibrating crystal of piezoelectric material
to create an electrical signal with a
precise frequency.

11. AT89C52 ULN2003
Relays Crystal Oscillator

12. 3. Solar Energy
What is Solar Energy?
Solar Energy defination : Energy from the sun.
Electric Energy:
 the power of the sun to
produce electricity through solar
cells, that’s known as Photovoltics
(PV).

14. Solar Applications

15. 4 .Inverter
What is inverter ?
Inverter is an electronic device that changes
DC to AC.
Inverter doesn’t produce any power;
The power is provided by the DC source.

16. BATTERIES
Dc supply
INVERTER
CONVERT DC tO
AC
AC OUTPUT
SUPPLY
Inverter working
process

17. 5.Bluetooth based control
Bluetooth is a standard wire-
replacement communications protocol
Bluetooth is a wireless
smart technology

18. Pictures

19. 6.Smart home appliance
Use multiple power source ,
controlling help by multiple electronics
devices and wireless controlling used
Smart Home Appliances and less power
losses .

21. 7.Applications
 Smart home appliances control
 Automations
 communications

22. CONCLUSION
• Necessity of automation
• Save energy.
• Solar Energy being a renewable source
• People can control their basic home
electrical devices via these Home
Automation devices and Mobile.

23. Thank You