DEPARTMENT-ELECTRONIC INSTRUMENTATION & CONTROL

MANOJ KUMAR SHARMA11EIAEI011

INSTITUTE OF ENGINEERING & TECHNOLOGY,ALWAR RAJASTHAN TECHNICAL UNIVERSITY, KOTA

A

SEMINARON

SMART HOME

SMART HOME

Smart home is a futuristic home in which all appliance of home

controlled by mobile phone controller who is attached

with an IC pin circuit is called DTMF(Dual Tone

multiple frequency).

FEATURES OF SMART HOME(1).By a phone call we can turn

on and off of an AC before reaching home from office.(2)We can control the home

appliance far a distance away(3)Clothes are washed in washing

machine.(4)We can turn off the light of

room if we forget

DTMF-8870Dual Tone Multi Frequency

This DTMF (Dual Tone Multi Frequency) decoder circuit identifies the dial tone from the telephone line and decodes the key pressed on the remote telephone. DTMF (Dual Tone Multi Frequency) decoder IC uses a digital counting technique to determine the frequencies of the limited tones and to verify that they correspond to standard DTMF frequencies. The DTMF tone is a form of one way communication between the dialer and the telephone exchange. The whole communication consists of the touch tone initiator and the tone decoder or detector.

BASIC CIRCUIT

COMPONENT OF DEVICE

LED.RelayVoltage regulatorCrystal oscillatorBatteryResistanceULN-2003Capacitor

LED(Light-Emitting Diode) 1962

LED is invented by Oleg Losev, James R. Biard , ,Nick Holonyak

When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence

STRUCTURE OF LED

RELAY relay is an electrically operated switch. Many relays use an

electromagnet to mechanically operate a switch When an electric current is passed through the coil it generates a

magnetic field that activates the armature, and the consequent movement of the movable contact(s) either makes or breaks (depending upon construction) a connection with a fixed contact. If the set of contacts was closed when the relay was de-energized, then the movement opens the contacts and breaks the connection, and vice versa if the contacts were open. When the current to the coil is switched off, the armature is returned by a force, approximately half as strong as the magnetic force, to its relaxed position. Usually this force is provided by a spring, but gravity is also used commonly in industrial motor starters. Most relays are manufactured to operate quickly. In a low-voltage application this reduces noise; in a high voltage or current application it reduces arcing.

BASIC RELAY

SUPPLY

VOLTAGE REGULATOR

The 78xx family is commonly used in electronic circuits requiring a regulated power supply due to their ease-of-use and low cost. For ICs within the family, the xx is replaced with two digits, indicating the output voltage

CRYSTAL OSILLATOR

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance

vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency . This frequency is commonly used to keep track of time to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillator

BATTERY

The most common form of nine-volt battery is commonly called the transistor battery

Most nine-volt alkaline batteries are constructed of six individual 1.5V LR61 cells. enclosed in a moisture-resistant wrapper to prevent drying

RESISTANCE

The electrical resistance of an electrical conductor is the opposition to the passage of an electric current through that conduction

ULN-2003

A ULN2003A is a high-voltage, high-current transistor array.

CAPACITOR

A capacitor (originally known as a condenser) is a passive two-terminalelectrical component used to store an electric field

PCB

Printed circuit boardPCB are the board in which the component of

device are mounted by process of etchingEtching means fix the component on PCBIn etching we use soldering iron , flux and

solder wireSolder wire is mixture of Tin and Lead

PROJECT ON BREAD BOARD

THANK YOU

PRESENTATION BY: MANOJ KUMAR SHARMA

B.TECH,EI&C