Smart Home Appliance Control

Guided by:Neha Mukhija(AP-EC Department)

Team Members :

• Avdhesh Kumar Meena• Ghanshyam • Harimohan• Nidhi• Parvinder• Shubham

CONTENTS1. Automatic Street Lights using LDR2. Micro-controller control kit

AT89C52 ULN 2003 Relay Crystal Oscillator

3. Solar energy4. Inverter5. Bluetooth based control6. Smart home appliance

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

LDR Circuit

2.Micro-controller control kit

AT89C52ULN 2003RelaysCrystal Oscillator

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 AT89C51RAM 256 Bytes 128 BytesFlash 8 KB 4 KBNumber of Timers/Counters 3 (16-bit each) 2 (16-bit each)

Number of Interrupt Sources 8 6

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.

Relays

A relay is electro mechanical device that’s 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.

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.

AT89C52 ULN2003

Relays Crystal Oscillator

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).

Solar Applications

4 .InverterWhat 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.

BATTERIESDc supply

INVERTERCONVERT DC tO

AC AC OUTPUT

SUPPLY

Inverter working process

5.Bluetooth based control

Bluetooth is a standard wire-replacement communications protocol Bluetooth is a wireless smart technology

Pictures

6.Smart home applianceUse multiple power source ,

controlling help by multiple electronics devices and wireless controlling used Smart Home Appliances and less power

losses .

7.Applications Smart home appliances control Automations communications

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.

Any Query