S&T Project List

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SCIENCE & TECHNOLOGY PROJECT LIST 2011

INDEX SR No. Particulars Project No.

1 Electronics Hobby Project 1 – 600

2 Electronics Higher Project 601 – 700

3 LED Light Project 701 – 900

4 Display Light Project 901 – 950

5 Electricals Project 951 – 1000

6 8051 Microcontroller Based Project 1001 – 1050

7 Microcontroller Base Project 1051 – 1100

8 Microcontroller Base PIC Project 1101 – 1200

9 Microcontroller Base RF Project 1201 – 1300

10 PC Based Project 1301 – 2000

11 RFID based Project 2001 – 2500

12 Robotics Project 2501 – 3000

13 Development Board 3001 – 3500

14 Trainer Board/Self Learning KIT 3501 – 4500

15 Automation Project 4501 – 5000

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S.No. Particulars Disipline IC

Electronics Hobby Project MUSICAL DOORBELL

1 Bird bell (mains) (230VAC) (with cabinet ) This circuit produce the bird chirping sound on mains trigger.(230AC)

2 Bird bell ( 9v ..12 V )

This is a simple oscillator circuit producing chirping sound with single NPN tranisistor

3 12 / 16 Tune musical bel (CIC 4822 ) (3V)( with cabinet) This is very compact 12/16 different tune door bells.

4 Touch control musical bell (3V) (with cabinet ) This circuit is popular musical bell,which gives different tunes of feather touch.

5 16 Tune old hindi song bell (3V)(with Cabinet) A 16 Old Hindi Song tunes in rapid choice.

6 25 Tune musical bell (RTS 993 ) (3 V ) (with cabinet )

This 25 tune English song with choice of lates doorbell technology will never ignore by anybody.

7 Musical Door Bell (with memory)

This Doorbell produces a pleasant musical tune. The bell rings only for time period that you have set. A single melodious tune is heard whenever a push-to-on switch is pressed. The preset time can be varied easily.

8 Multiswitch Doorbell with Indicators-0304

In a home with too many doors it becomes difficult to ascertain as to which door a visitor is standing just by hearing doorbell. Using a monitoring panel with indicators, this circuit is capable of solving this particular problem by indicating the door number.In addition to that, buzzer also is activated each time any switch is passed. With upto four switches available, circuit is able of monitoring four different doors.

9 Musical touch Bell

This musical bell operates just by the touch of your fingertip, obviating the need for a mechanical switch. Useful in homes and offices, it can operate off a single pencil cell.

10 Two-door Door Bell-0006

0 This doorbell gives two different tones: one of a lower frequency and the other of a much higher frequency. Separate switches can be mounted at two separate doors at the same floor level.

11 K.D.K / please open the door (OD - 02 ) Bell (3V) (W/C) This circuit is very simple & at low cost voice doorbell.

12 Call Bell with WELCOME Indication CAR HORNS

26 Electronics Car Horn ( 810 + 555 ) ( 6 - 18 V )

This is a simple & at low cost project designed for car using TBA 810+555 chip.

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27 Car Reverse Horn (UM 66T / L) (12V ) This is a easy project designed for Car Reverse Horn.

28 Multitune Car Reverse Horn (12V) Produce 12 different tunes for Reverse Horn.

29 Scooter Brake Horn ( UM 66T/L ) This circuit using UM66 melodious warning Brake Horn.

30 4 Sound Car Reverse Horn (UM 3561) 3V 31 Electronics Eye

This circuit produces the sound while light Fails & stops while light comes back. SOUND EFFECT

52 Mosquito repellent ( Domestic ) ( 1.5 V )

This is the A stable Multi Vibrator which generate the desired frequencies for ran away mosquito.

53 Electronic Harmonium ( 9V ) This is simple Harmonium using 555 IC,which gives 15 different music.

54 3 Gun Sound Generator (UM 3562) (3V) This circuit uses 8 pin CMOS IC.It produces 3 different Gun sound.

55 Steam Engine with Whistle Sound (New) 74 Multi Melody Generator with Instrumental Effect-0606

This versatile melody generator is capable of generating various English and Hindi version melodies using UM3481A and WR630173 tone generator respectively. Instrumental effects can also be produced with the same circuit.

AUDIO EFFECTS 76 Dancing Light / Sound Level Indicator (5-12 V )

This simple circuit appeal for stereo system or Cassette Plyer on Sound level indicator.

77 Digital Telephone Amplifer (New)(LM 386) 78 Condenser MIC Amplifier-EP-7

Mic sound amplification with both fixed and variable outputs can be obtained using this kit. The two-stage amplifier is capable of providing sufficient gain to pick up even the slightest whisper.

80 Hearing Aid-0608

This low-cost, electronic hearing aid employs a TDA 2822M(8 PIN-DIP package)audio amplifier IC.Transitor BC547 and associated components form the condensor microphone signal preamplifier.The audio power output of this unit is 10 to 15 MW.

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FM Tranc - reciever 101 Quality FM Transmitter-0408

The digital like sound quality that FM offers is the reason that many people prefer to have their own transmitting station in FM band. This quality FM transmitter can transmit chosen music in FM band. To receive its signals, any conventional FM radio receivers can be used.Without compllicating the functionality,this circuit transmits the signals just by using discrete components.It provides an easy wau to transmit less distorted,low noise music with in a range of about 200 meters.

102 Fm Transmitter (9V) You can hear your voice in FM receiver kept at distance tuned in FM Frequency.

103 FM Transmitter 300 Meter (9V)(New) 104 FM Transmitter 2 K.Meter (9V)(New) 105 FM Transmitter 3 K.Meter (9V)(New) 106 FM Transmitter 3 K.Meter (9V)(New) 107 MOSFET Based Pre-Amplifier for FM Radio Dxing-0311

Frequency Modulated (FM) transmission can be received within a range of about 40 Kms. To receive your favourite FM radio station beyond this range, the only option left is to connect an external pre-amplifier at the receiver end. This circuit acts as FM booster attached to your present FM radio receiver and enables one to receive FM in fringe areas.

108 Long-Range FM Transmitter-9912

The high-power output obtained using a power amplifier stage allows a range of about 2 km for this FM transmitter. Reasonable good signal quality and strength are possible with little adjustments.

109 Wireless TV Headphone-0303

As most of TVs nowadays come equipped with audio in/out and video in/out RCA sockets. Connect audio output (headphone socket) of your TV to this circuit to transmit the sound of TV as FM signals. Using a portable FM receiver with headphone, watch your favorite TV program without distrubing others.

110 Cordless FM MIC-9605

The voice at condenser microphone can be listened through a standard FM receiver using this circuit. The range of this FM transmitter can be easily enhanced with little modifications.

111 FM Booster

FM booster can be between your FM reciever and the antenna to listen to distant commercil FM stations clearly.

GAMES 126 Digital Dice-0510

The digital electronic dice circuit acts like a normal dice and uses four different logic gate combination to bring out the six faces of the dice. Seven LEDs are suitably positioned on the board. When you place your finger on the touch plate, the LEDs wil glows.

127 Griposcope (3-9V) Can also be used as a lie Detector.

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129 Two In One Electronic Games (9 V ) It incorporated two facilative games gambling & Indoor Cricket.

130 Quiz Monitor (4 Channel) 12V (New) (CD 4012+4013) 131 Electronic Roulette Wheel With 2 Digit (9V) (New) (CD 4033) 132 Electronic Decision Maker (New) (CD 4046)

DOMESTIC 151 Clap based Switch For Device-0303 152 Clap Switch (12 V )

Simple electronic swithch activated by a clap can control (ON/OFF) fan light Radio & Tape.

153 Touch Sensitive Switch-EP-11

Sometimes one may want to switch a lamp just by touching it. This circuit provides a very simple and reliable way to do just that. The connected appliance will be turned ON by a slight touch of finger at the sensor. Another touch at the OFF sensor will turn it OFF. This can also be used as ahidden switch or electronic lock by concealing the touch sensors.

156 Hit Switch

This versatile hit based switch is electronic equivalent of a switch. This circuit serves as an on/ off control for incorporation in a wide variety of electronic design.The circuit uses a Piezo electric diaphgram.

157 Listening Bug (9V)

It is simple circuit in - expensive circuit to listen to the conversation on in your adjoining room.

158 Powerfull Listening Bug(9V)(NEW)(LM741) 161 Parallel Telephone Ringer

Due to high volume of your hi-fi audio/video systems or any other reason sometimes telephone ringing in other room is not heard. In addition to provide indication that your telephone is ringing in other room this telephone extension ringer avoids overhearing of conversation by an undesired person at other end.

162 Parallel Telephone Ringer (New)(Bel 1240) 163 Musical Hold On for Telephone

Using this add-on external circuit attached to your telephone a melodious music is generated on telephone line. During the entire hold-on interval, person on other end enjoys a pleasant music. To resume talking when you are back, just flick the switch to OFF mposition.A Red LED included in the circuit that phone line is on hold and it automatically turns OFF when music stops.

164 Hold On Music For Telephone

This is the external ckt to telephone line which gives the pleasant music during the hold on interval.

165 Telephone Call Recorder-9507

This telephone message recorder records all the conversations on tape-recorder. In case nobody attends the call, it records the incoming ring signal only.

167 Phone to FM Listening Bug (New)

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168 Low-cost Transistorised Intercom-9910

Voice at one end is amplified and listened at the other end through a loudspeaker as a one-way intercom. A two-way intercom can be similarly assembled using two such kits.

169 Two Way Intercom (9V)

This is simple intercom system for communication of two persons in the same building OR office.

176 20sec Voice Recording (6V) 177 60 Sec Voice Rec Message (6V)

A re-recordable voice chip with non-colatile memory gives to store 1/4/8 voice msg in single chip with individual trigger & no batt backup.

178 8 Minute Voice Recording & Play Back (Message Box) 179 16 Minute Voice Recording & Play Back (Message Box) 180 120 Sec. Message Recorder (ISD 25120) (New) 181 Three Octave Organ-EP-4

Organ is a musical keyboard instrument that produces a wide range of sounds at different volumes. This circuit resembles the working of organ by electronically producing 12 musical notes. This electronic organ is designed to produce notes in high, medium and low octaves,Selection of different octaves is done by switches S1 and S2.

191 Touch Dimmer

This is versatile three-step touch dimmer for varying the lamp intensity according to brightness required in the room. The circuit increases lamp intensity in steps, from off to low, medium, high and again off. The lamp stages are advanced sequentially by simply touching the touch plate connected to touch wire. At power-on condition, lamp is in OFF condition.

192 Digi Teacher-EP-9

Now a days, the digital electronic techniques are employed to number of electronic devices and are applicable in diverse fields such as automobiles, electrical appliances, instrumentation and control equipments. Acting as Truth Table evaluator cum electronic learner circuit, this kit gives hands on practice for learning and understanding digital design basics.It displays the output using LEDs.

193 Digital Object Counter

The circuit using 74C926 counter utilizes the LDR to show the counting of the object.

194 2 Digit Door Bell Counter (6V)(New)(CD 4026/555) 195 2 Digit Strom Distance Counter (9v)(New)(NE 555) 196 3 Digit Counter (New)(CD 4093)

The high-frequency signal generated by a transformer is useful as pest-repeller. The intensity can be easily varied by tuning the preset.

198 Emergency Light Using CFL

This circuit provides automatic switch-on of compact fluorescent lamp (CFL) when AC mains supply goes off. Charging mode is switched back when the supply is resumed.

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199 Water level Indicator-9702

This simple and easy-to-install circuit gives both visual and aural indication when the water tank is full. You need to fit the probes at the desired water level in water tank.

200 Remote Control for Home Appliances-0505

This handy circuit can be used to switch on and off any of your home appliances or any electrical device with a single press of your TV, VCD or DVD remote control. This low-cost circuit is based on 4017 counter IC which receives trigger pulse from IR sensor and switches on the relay through which electrical devices are switched on & on receiving the 2nd pulse the device is switched off.

201 Automated School Bell-0410

The Circuit is useful for the Educational Institutes etc. This circuit provides an automatic alarm 8 times after an interval of 45 minutes each. and after 4 intervals provides lunch breaks for 30 minutes.

202 Automatic Night Lamp Dimmer with morning alarm

This circuit serves dual purpose, depending upon intensity of light rays detected. One part of the circuit automatically detects darkness to switch ‘ON’ a white bright LED which acts as night lamp. Its another part senses daylight to switch on a melodious music in the morning. No external DC power supply is required,as the circuit operates on direct AC power supply line. But , provision for battery backup is provided to power the circuit in case of mains failure.

203 Automatic Porch Light with Melody-0212

While you park your vehicle in the garage, this porch light automatically switches on for a specific duration. A melodious sound can also be heard at the same time. Time duration can be easily varied using a preset.

221 Ionizer Mains (230 V AC )

An environment friendly project based on theory of IONISATION can be used as an air purifier.

222 1 Hz Generator (9V) The circuit generates a very precise 1 Hz square wave signal.

223 Electronics Bicycle Lock 224 Numeric Water Level Indicator with Display 225 Automatic water Level Controller 226 Touch Plate / Switch ( Glass Epoxy) (12V )

This simple ON/OFF touch plate by using the NAND Gate IC 4011,which has connected as a flip-flop.(There are two plates for ON-OFF).

227 Sunset Lamp DIGITAL CLOCKS

251 Digital Alarm Clock ( 0.5" Duplex Dis) Red And Green 252 Digital Wall Clock (3 1/2 " Dis. ) (5 mm LED)

This is a simple alarm clock with using Chip 8560 TMS 3450 with Battery backup facility.

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TIMERS 276 555 Timer (9V-12V)

This is capable of Drive Relay with time delays From 1 sec. To 100sec. 277 Time Switch (6V )

This timer is very useful for NICD chargers. 278 555 Timer with On/Off Indicator (12V)(new) 279 1 to 5 mins 200/240V Timer (new) 280 Knotted Handkerchief (timer up to 120 minutes ) (9v)

This reminds one to do something in fact it is extrmely compact timer. 281 Kitchen Timer (Up to 17 minutes ) ( 9 V )

This circuit adjustable between 1 to 17 Minutes provies Audible time alarm. 282 Timer with Audio Alarm (9V) (CD 4060)

This circuit gives a audible warning from 1min to 120min. 283 Telephone Cut off Timer 1-20 Minute (new) 284 Timer for Students-9910

This timer gives alarm after a preset time period and a few beeps at half the selected time. The timer could be programmed for other time periods as well.

285 Sound Operated Timer-8905

This electronic switch gets activated by the sound of a clap. It can be used in a sound-operated motor driven toy car or any other gadget.

INSTRUMENTS 301 Continuity Tester

An audible continuity tester for repid checking of continuity or short circuit 302 Zener Diode Tester-0404

Many a times the terminal and voltage markings are not specified on zener diode by manufacturer. Or, it may happen that these markings are not visible in old or used components. This kit provides a way to test and check zener diodes of 3.3V to 18V rating.

303 Multitester with Audio-Visual Indicator-0202

Test the condition of electronic components like resistors, capacitors, diodes, photodiodes, and transistors by both visual and audio indication. The tester is also useful for checking continuity between two points.

304 Crystal Tester Simple circuit to test X'tal Range of 100KHz to 30MHz.

305 Fault Finding Probe

Fault finding probe is Alternate of logic analyzer it's nothing more than bistable Multi vibrator.

306 Battery Tester (9V)

This compact tester designed for testing the battery I.e. there has three LED's that indicates the indication of Alkali-manganese, Carbon-Zinc & Alkali Zinc of the battery. Devices multimeters power supply electricity.

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307 Digital Panel Meter (New Led Version ) (5V) 311 CMOS Function Generator (6 V)

The circuit offer a choice of sine,Square & triangle wave form & Freq. range from 12Hz to 70KHz

312 PH Meter (+-9V) Acidity/Alkalinity measurement by LCD range from 0 to 14PH.

313 PT 100 Thermometer (9V)

This thermometer has unusually large of - 100'C to +1000'C Theses means the demand for accurate temperature measurement.

314 LM 35 Digit Thermometer (9V) (New) 315 Digital Multimeter

ALARMS 326 Blown Fuse Indicator-0004

Green LED glows in normal condition, while a blown fuse is indicated by a red LED as well as an audio alarm.

327 Sensitive Vibration Detector-0511

The Vibration detector (piezo element) in this circuit can be used to detect the vibration of the rolling shutter guard and alarm you when unauthorised person tries to open it. The load in the circuit can be an AC operated electric bell or bulb used as alarm device.The alarm can be stopped using a push to off switch given in this circuit.

328 Bathful Indicator (5 V)

This low cost solution for non wastage of water which alerts you by active buzzer when water level is reach.

329 Power Failure Indicator-Ep-16

The power supply failure and blown fuse condition both are indicated by sounding an alarm using a loudspeaker.

336 Liquid Level sensor (12 V ) Liquid level controller wired around a single chip & sense the level and alert you.

337 Heat Sensor with Fan Cooling (12V)(New) (LM 741) 338 Heart Bit Monitor (9V)(New)(LM 386) 339 Electronic Guard For Blind-0207

Using this microcontroller based aid for visually impaired persons, any obstruction in the path can be sensed easily. When obstruction is too near, the loudness level of sound coming through earphone gets increased. Thus the user holding the unit gets a rough idea of his distance from the object.The important feature of the circuit is its small size owing to use of less number of components.After little modifications,the same circuit can be used in robotic toys or in object counters.

340 Photo Sensor with control Relay (New) 351 Fire Alarm (9V)

Here is a simple fire alarm circuit build around 555 timer IC a reverse biased germanium diode DR 25 is used as a heat sensor.

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352 Knock Alarm-0211

This circuit converts knock on door, car’s dashboard, drawer, etc into a loud alarm using a loudspeaker. It can also be used to warn you of any unauthorised entry during night time, if installed at your doorstep.

353 Intruder Alarm

This circuit automatically activates a loud alarm whenever any unauthorized entry is attempted. To reset the circuit, there is no need to replace the broken wire or to turn OFF the unit, as is the case with other security alarms. The alarm can be turned OFF just by a simple flick of a switch.The unit power on Identification by LED use also provided here forbetter monitoring.

354 Smoke Alarm-0112

This smoke detector employs a photo interrupter module that activates an audio alarm via a loudspeaker. The sensitivity can be easily adjusted by varying the preset.

355 Smoke Alarm (NE 555) 356 Burglar Alarm-EP-3

This circuit sounds a loud alarm in the case of an unauthorised entry. Wire loop gets broken whenever such an attempt is made.

357 Fire Alarm-9301

This fire alarm uses a DR25 diode as sensor to sense fire and activate a loud alarm.

358 Fridge Alarm (12 V)

This is simple LDR circuit designed for Fridge or Freezer which give alarms or sound when your door of fridge are not properly closed.

359 Musical Visitor's / Intruder Alarm (3V) It is simple circuit to monitoring intruders by using proximity magnetic switches.

360 Knock / Earth Quake Alarm (9V)(New) 361 Stop Thief (Buglar Alarm for Car ) (12V)

This is simple circuit designed for car which protect your car from thief's with engine trouble.

362 Molestation Alarm (9V) 363 Power failure resumption alarm

This circuit sounds an alarm whenever AC mains fails or resumes. It can be easily installed where you want to monitor the status of the mains supply.

364 Musical Buglar Alarm / Doorbell (LDR Operated ) (3V)

This circuit can operate as a light activated burglar alarm by the addition of preset and LDR.

365 Infrared INT Alarm (Long Range) (12V) 366 Power Supply Failure Alarm-0107

This circuit indicates power supply failure by sounding a buzzer. No external DC supply is required and power-on condition is indicated by an LED. Time duration can be varied with little modifications.

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367 Musical Siren Alarm (3V) This is musical siren without using IC operated by 2 transistor.

368 4 Led Water Level Indicator with Alarm(6V)(New)(CD 4066) 369 Touch Sensitive Siren (New) 376 Twilight Switch (12 V )

This switches the light on dusk & off at down. 377 Light Sensitive Switch (230V)

A versatile light operated switch Max.220V 378 Touch Switch (using ic 555 Multivibator) (New) (NE 555) 379 Electronic Auto Dipper

While driving at night, the high beam of head light lamp of vehicle approaching from opposite direction causes the problem of glare for both the drivers. This circuit solves the problem by making the dipper action automatic. As soon as it senses the light rays coming from opposite direction it automatically turns lamps from High to Low intensity.

380 Water Level Controller (12V)

Improved water level controller has been provided with two flip flops for the two tanks and each tank has three probes to monitor its status.

REMOTE CONTROL 402 7 Digital Code Lock (6 - 15 V )

This code lock provides a high degree of security can be hooked with relay driver for use car door open etc.

403 8 – bit Code Lock for Appliances-0407

This electronic lock is useful in numerous applications where access to an article/gadget is restricted to limited number of persons. One unique feature of this circuit is that code can be easily changed here without any need of changing the wiring or connections,as is the case with other electronic locks.The circuit providers re-programming of the code just by changing the switch positions.

404 Electronic Watch Dog

This circuit produces an alarm sound when a person crosses the gate. The Circuit comprises of Transmitter & Receiver which are mounted face to face on opposite pillars of the gate in a manner so that when someone interuppts between the two it gives an alarm.

405 Magic Eye-9601

This magic eye fitted on the bottom of door entrance obviates the need for a call bell. It can also be used as an automatic guest indicator at homes or as a burglar alarm in banks.

406 Electronic Digital Combination Lock (New) (CD 4017) 407 Smart Cellphone Holder-0507

This smart cellphone holder makes sure that you do not forget to carry your mobile phone. If you have forgotten to carry your cellphone, the LED light fitted in the cell phone holder will stop flashing to indicate that the mobile phone is not in the holder.

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408 Digital Security System-0505

This circuit can help you from the intruders and strangers. Very thin copper wire loops has to be wired around your house and if any of the copper wire loops is broken, the display displays the particular number of the loop with buzzer sound. if more than one loops are broken it will display the sum of their lopps.

409 Simple Digital Security System (New)(CD 4511) 410 Security System (New)(NE 555) 411 Anti Bag Snatching Alarm

Incidents of bag snatching are increasing nowadays. Many a times the snatcher can be caught easily if a loud alarm is raised. The kit uses plug and socket arrangement to raise the alarm whenever any snatching attempt is made. Thus, while travelling, this kit entitles the person to carry cash or valuables without fear. Using the hidden key, only owner can turn OFF the alarm.

412 Luggage Security Systems-0005

This circuit gives an alarm sound when someone tries to cut the luggage chain. Different sound effects are possible after doing simple connections.

413 Long Range Burglar Alarm using laser torch

This Circuit operates at a frequency of 5 khz. If the transmitter & receiver parts are properly aligned it can work upto a distance of even 30 meters When the objects cuts the transmitter and the receiver parts.

414 Metal Detector (9V)(New) 415 Door Opening Alarm (New) 416 IR Remote Switch-0203

ON/OFF switching operation of a remote appliance can be done using this remote control. The circuit uses any TV, VCR, VCD or CD player remote as transmitter. Indication of different output stages is provided by LEDs. This helps in better understanding.

427 IR Auto Switch I/R wash Basin Proximity switch(12V) (New)(Is 471 IR Sensor).

428 I/R Remote Switch (Universal) This circuit use one channel universal remote control.

429 I/R Remote Control On/Off Switch (12V) 430 4 Channel Long range IR Control (12V) 431 IR Object Counter

This circuit can be installed in public places to count the number of people or objects passing through the transmitter & receiver. The circuit operate at a frequency of 38 Khz . The count will be displayed through the calculators.

432 Remote Operated Musical Bell-0310

It uses any TV remote control to operate a 12-tone musical bell. This Infra-Red (IR) receiver unit is capable of responding to IR rays transmitted from any TV, VCR, VCD or CD player remote. When any of the buttons on the remote is pressed, the receiver detects it as pulse through its own IR sensor and plays one musical tone. The approximate range of the circuit is 10 meters.

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433 Infrared Security Alarm (12V)(New)(74LS14) 434 CCTV Night I/R Lluminator Watching (12V)(New)(7812) 435 IR Remote Control Timer-0305

The circuit uses IR transmission for remotely controlling ON/OFF operation of upto two electrical/electronics appliances. Pressing push-to-on switch from a distant transmitter, normally OFF appliance is turned ON and another normally OFF appliance is turned ON for some specific time period. This time period can be varied in the range of 0.11 to 110 seconds for given set of components and range of remote is about 3 meters.

477 4 Channel Long range RF BASE Remote Control (Push to on type) (12V) 478 4 Channel Long range RF BASE Remote Control (on/off) (12V)300 meter 479 4 Channel Long range RF BASE Remote Control (Push to on) (12V)300 meter 480 4 Channel Long range RF BASE Remote Control (on/off) (12V)

POWER SUPPLIES 501 General Purpose Power Supply (2 Diode /4 Diode) 502 General Purpose Power Supply (4 Diode /2Cap )

Simple rectifier circuit for AC to DC conversion. 503 + /-15V/ 1AMP. Power Supply

Regulated Power supply with short circuit protection. 504 15V /1AMP. Power Supply

Regulated power supply with short circuit protection with AMP current capacity. 511 Versatile Power Supply-0602

It is a DC regulated variable power supply that can deliver 3.3V up to 15V ,1Amp output using an adjustable regulator IC LM317.

512 78L/79L General Purpose Power Supply Versatile Power supply using 78L series IC's with Amp current capacity(5V to 24V)

513 5V/ 500 MA Power Supply(LM129) Stabilized power supply for exact output of 5V with regulation.

514 Regulated Power Supply (2 Diode 3 to 6 AMP) 515 Regulated Power Supply (4 Diode 3 to 6 Amp) 516 Mulity Use PCB with +/- Supply Pcb (NEW) (LM 317) 517 3 AMP. / 5V Power Supply

5V regulated power supply with 3AMP current capacities. 518 L - 200 Regulated Power Supply

Variable regulated power supply fully adjustable between 0-18v and 0-1.8A respectively.

519 Adjustable Regulated Power Supply (LM 317 T ) Variable power supply from 1.25V to 25v at 1 AMP.

520 3 AMP. Variable Power Supply (1.5 V To 24 V )

Variable power supply from 1.25V to 24v at 3 AMP current.

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521 0 - 30V Regulated Power Supply (1Amp) Variable Voltage source from 0-30V with adjstable current limiting facility.

522 IC Power Supply (1V - 10V/1A) Variable Stabilised power supply with adhustable current limiting facility.

523 Variable Power Supply with Digital Control-0404

A regulated power supply is one of the most important and essential requirements in electronic lab. The available power supply must provide variable outputs in steps. This kit gives variable and fluctuation-free DC voltage as output in the range of 1.5V to 12V. It also provides proper display using LEDs as indicators and outputs here are easy to select.

CHARGERS 582 Universal Nicad Charger (12V)

This cheap alternative turns into an low expensive one charger for All Nicad Cell. 583 Lead Acid Battery Chager (L 200 ) (6 V / 12V ) (without Meter)

Charger circuit with protection against reverse over 10 adding and short circuit with auto charging facility for 6V/12V batteries with meter.

584 Lead Acid Battery Charger LM 317 T (9 - 40 V )

The simple charger for lead acid batteries having different AMP/hr capacity you can use it as common supply unit.

585 Battery Low Indicator (New)(CA 3160) 586 Solar Generator Kit (New)(NE 555)

Electronics Higher Project 601 CHIP-TALK Hobby Projects

CHIP-TALK Hobby Projects package include components and PCBs of 40 fully tested projects and a book. The book contains the fundamentals of electronics and 40 tested circuits and their descriptions.

602 Digital Voltmeter-0707

Digital Voltmeter is designed as a panel meter and can be used in DC power supplies panels or where it is necessary to have an accurate indication of the voltage.

604 Simple Code Lock-0001

This electronic code lock responds only to the right sequence of four digits out of nine keys available on the keypad.

605 Anti Theft Alarm for Vehicles-0304

This security system for vehicle generates a loud and continuous alarm in case of any unauthorised person getting access of your vehicle. As soon as, auto-lifter tries to start, the vehicle alarm gets activated leaving no option for him other than to leave the vehicle intact and run away Only owner will be able to turn OFF and reset the alarm.

606 Automatic Low-Power Emergency Light-0801

Here is a white-LED based emergency light that turns on automatically when main supply fails and turns off when mains power resumes.It has its own battery charger and stops when fully charged.

607 Fastest Finger First Indicator-0112

Useful in quiz and game shows, this device indicates the fastest player’s designation number along with alarm sound, locking other contestant buttons.

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608 Portable Ozone Generator-0206

This handy unit to be plugged into mains to get ozonated air at suitable pressure, flowing out from the tube. Ozone gas is now-a-days used for treatment of drinking water, dis-infection and air purification.

609 Speed Checker For HighWays-0512

With the two lasers installed at 100m apart on one side and corresponding LDRs on the other side of the highway,when the vehicle crosses the two laser beams,this circuit can check the speed of a vehicle through the readings on a 7-segment display unit. It also activates an audio alarm (piezo-buzzer)when the vehicle exceeds the permissible limit.

610 Low Cost Energy Meter-0505

As the name suggests "Low cost energy meter" has been constructed with the help of IC ADE 7757. The output units are displayed in the seven segment display. This can count upto 9,99,999. The circuit is also provided with proper battery back-up such that even if the power fails the display will not be reset & it goes on.

611 3D Surround Sound System

This is a novel project for hobbyist interested in 2-channel surround sound systems.An NJM2702D 3D surround audio processor is used here,which generates 3-dimension surround sound effect using two loud speakers only.

612 School /College Quiz Buzzer

This audio-visualquiz buzzer circuit given here can be used for up to eight players.It uese IC 74LS373 and a few passive components.

613 Voice Recording and playback-0407

This circuit enables to record a single message of upto 60 seconds duration or upto eight different messages of 7.5 sec duartion each. In playback mode the circuit plays recorded message either randomally or in sequential manner. It uses Voice Processor IC as main unit.

614 Lead Acid Battery Charger cum Voltage Analyser

Continuous monitoring of battery conditions even for maintenance free lead acid batteries is necessary, because poor state of battery reduces its life, capacity and recharging ability. This circuit indicates the overcharge, low charge, normal and no charge battery conditions using LEDs and buzzer.

615 Tele remote Control-9910

This tele remote overcomes the range barrier of infrared remotes. Control is provided through the dial keypad of a remote telephone and switching on/off operation of up to ten appliances is possible. (This circuit is meant to control only four devices.)

616 Heat Sensitive Switch-0511

This circuit can be used to switch on or off the load at a predetermined temperature. The temperature is set through the output of a temperature sensor IC or heat sensor and a voltage divider network. When the temperature reaches the preset value, the circuit energises the relay and automatically turns on the load such as fan through the contact of the relay.

617 Water level Controller-cum-Motor Protector kit-9908

This device provides switching on/off of the pump motor. Automatic switching off of the motor when overhead tank is full. It has low- and high-voltage cut-off control.

619 Smart-Fluid Level Indicator-0001

This 7-segment display displays fluid level in meaningful English letters as E for Empty, L for Low, H for Half, A for Above Average, and F for Full.

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620 Water Level Controller-EP-9

This circuit provides switching control of pump motor and pumps water from ground-level tank to overhead tank when the tank is completely empty. To monitor the status, each tank is provided with three probes.

621 Current sensor 622 Computerised Electrical Equipment 623 Cellphone based Voice Acknowledgment 624 Solar Light System with 10W Panel 625 Ibutton

LED Light Project 701 Bi-colour LED Disco Runing Light-8812

This bicolour LED chaser circuit produces sequence of red and green lights. The frequency can be easily varied by adjusting the preset.

702 Bi-Colour Led Arraj Blinker

This circuit are most flasher circuits flashes the same LED array as green and then as red for a preset time.

703 6 LED Dancing Light (3V) 704 6 LED Dancing Light (9V ) 705 24 LED Dancing Light (12 V)

This is a simple multi vibrator circuit-using transitor. 706 OM (12V)

This circuit is arrange by LED's which idicate sign. 707 Swastik (12V) 708 LED Ornaments (cross) (9V ) 709 LED Ornaments (Square) (9V) 710 LED Ornaments (circle) (9V) 711 LED Ornaments (Spiral) (9V) 712 LED Ornaments (Star) (9V)

The purpose of this circuit gives you an exact idea how you can imagine the multi sign by LED's.

713 Flashing Running Light

This simple LED flashing light by using four groups of four LED's in each group will light simultaneously.

714 Running Led (New) (NE 555) 715 60 Led Chaser (4 Ch) 716 150 Led Chaser (6 Ch) 717 300 Led Chaser (6 Ch)

The circuit descibed here generates a unique running light effect each column in a row of 4 or 6 glow sequentially.

718 16 Channel Auto LED Running Light with Flashing LED (12V)(New)(74LS04) 719 Low Power LED Flasher (9V) (New) (NE 555) 720 WelCome LED Dis. Board With 8 Alphabet Ckt . Board

This is simple LED Board in sign of WELCOME.

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721 SMD Flashing Heart(New) Display Light Project

901 Light Switch (New) Transistor 902 Light Dimmer (230 V AC )

This project using a simple triac to control in candescent filament lamp.(max : 1500W) 903 Light Sensitive Trigger (12 V- 16 V)

This simple light operated switch can have variety app. 904 3 Channel Seq. Light (6V)

This is low cost simple 3ch sequential light used in many decorative light.Each series carry 1000watt

905 6 Channel Auto Reverse Sequential

The Circuit drives 6 triac in forward & reverse direction It takes bulb load up to 1000w per channel. You can also drive in audio input by external source.

906 4 channel Sequential light (6V)

This project can be used to switch decorative lighting or in the modern home & many uses among day's of festival. Each series carry a load of 1000watt.

907 6 Channel Sequential Light / Disco Light (6V ) It's total load 1000 Watt per channel using triac.

908 8 Alphabet sine Display Board

This simple circuit of 8 Alphabets,which goes bit by bit & then puts all outputs off.You can use it for your shop/Office advertisement.

909 4Alphabet Sine Display Board (EX Board 8 Alphabet)

This is extension Board for your above 8 Alphabet Board.If your letter are more than 8 Alphabet then you can use this for the next alphabets in series of 4 alphabet.

910 Light /coin Operated Delay (12V Center Tape)

This circuit is designed for when a ray of light is interrupted the power output is switched "ON" for a variable duration of 5 to 55 sec. To operate the relay.

911 Automatic Cloak Room Light (12V ) This circuit puts an end to your guest fumbling for light switch in the clock room.

912 Traffic Light Control This project teaches the traffic rules using 3 relays for each light.

913 3 way Traffic Light (New) (CD 4017) 914 Moving Light (New)(NE 555 + CD 4017)

Electrical Project

951 Motor Speed control by PC from the RS232 serial port by varrying pulse duty cycle

EC / EE

Using pulse width varying technology so generated by the PC with Rs. 232 interface through a Micro controller enables the speed control of motor from the Pc by a motor driver IC controlled from the microcontroller.

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952 Motor Speed control by varrying the pulse duty cycle EC / EE

The speed of motor is directly proportional to the DC voltage applied across its terminals where the voltage is applied to control motor speed with Pulse Width Modulation wave. Here based on the pulse duty cycle provided by microcontroller the speed and direction of motor are controlled.

953 Single phase induction motor soft start by stepped delay of reducing firing angle EE

Charge and discharge of a capacitor at the switch on time and generating a saw tooth voltage is then compared by a comparator to reduce the firing angle from 180 degree to 0 degree progressively to achieve soft start of a induction motor.

954 High voltage dc upto 3kv from ac by using diode and capacitors in ladder network EE

1000 PIV diodes in combination with 100MFD electrolytic capacitors forming a ladder network multiplies the input AC to develop 12 times approximately DC output.

955 Cyclo converter FOR Fundamental,F/2,F/3 using gate controlled thyristors EE

The induction motor is a constant-speed machine. The difficulty of varying its speed economically constitutes one of its main disadvantages which is overcome by using a thyristor controlled cycloconverter that enables the speed to be lowered in steps by Microcontroller triggering a SCR bank of 8nos duly isolated by opto isolators for a F/2 & F/3 achieved by appropriate programme.F stands for frequency.

956 Non contact tachometer based upon reflected infrared signal with LCD display

EC / EE

This project uses the IR transmitting and receiving technique by reflection of modulated IR rays from any rotating object such as a motor shaft to send interrupt signal to a programmed microcontroller to enable display of the speed. The display can either be a LCD or simple 7 segment LED type. This becomes a contact less tachometer.

957 Preset Time operated electrical load by relay EE

Time Operated Electrical Appliance Controlling System is a reliable circuit that takes over the manual task of switch on/off the electrical devices with respect to time. It has an Inbuilt Real Time Clock (RTC) which tracks over the Real Time. When this time equals to the programmed time, then the corresponding Relay for the device is switched ON. Multiple time programing is also available.

958 GSM based monthly Electricity energy meter billing with display to the user EE

Domestic electricity consumed is displayed in rupee terms on daily and monthly basics to the user and billing details sent over GSM network form the user to the department for generating the printed bill..

959 PID/FUZZY LOGIC CONTROL for a brussless DC motor to run at the exactly entered speed EE

Precise speed entered through a numeric key pad interfaced to a micro controller maintains the entered speed of a BLDC motor by sensing shaft mounted IR sensors working on a closed loop circuit by a half brige ac to Dc circuit comprising 2 SCRs and 2 Diodes .

960 Password based circuit breaker control to ensure electric line man's safety EE

The micro controller based door locker is an access control system that allows only authorized persons to access a restricted area. The system is fully controlled by the 8 bit micro controller AT89C51 which has a 2Kbytes of ROM for the program memory. The password is stored in MC can be changed at any time.

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961 Remote speed control by thyristor trigger angle change with display of delayed firing angle EE

Using a standard TV remote with IR sensors interfaced to a micro controller , reads the coded data from the remote to activate the corresponding output pin to change the time delay for the thyristor firing in 8 steps that drives with varying speed the induction motor.

962 Precise DC power by pre stage thyristor firing angle control and post stage linear control EE

DC power is controlled with zero crossing detectors and sending to the microcontroller to fire thyristors using the opto isolator. The ac power is applied to the bridge rectifier comprising of diodes ,triacs and SCRs to get controlled DC at the output.

963 Ultra fast acting Solid state circuit breaker EE

The project is to shut down the power supply when it is overload. Conventional circuit breaker is based on thermal bimetal lever trip mechanism is very slow and the trip time is dependant upon the percentage of overload. Here the voltage sensed from a CT is compared against the preset voltage proportional to the current by a level comparator to generate an output for the contactor to trip the load.

964 Single phasing,overvoltage,overload and over temperature protected Induction motor EE

Protecting a 3 phase induction motor from single phasing, over voltage and over temperature using sensors interfaced to micro controller to output a relay operation for disconnecting the motor.

965 Developing islanding arrangement automatically for grid on sensing bad voltage or frequency EE

This paper presents the development of a microcontroller based islanding detection for grid connected inverter with very simple under/over voltage and under/over frequency islanding detection algorithms. The microcontroller monitors the under/over voltage and under/over frequency from utility grid and the processed value of voltage and frequency for turning on/off the relay between a grid connected inverter and the utility grid.

966 Three phase star delta starter using relays and adjustable electronic timer for induction motor EE

Star/Delta starters are probably the most common reduced voltage starters in the 50Hz industrial motor world. This project operates a 3 phase motor at 440 volt AC mains supply 50 Hz with a set of 12 volt DC relays, an electronically adjustable timer and a set of relays.

967 Soft start of 3 phase induction motor by using 2 nos. Back to back scrs in each phase EE

Here we use 6nos of silicon controlled rectifiers in anti-parallel, two in each phase which are phase controlled in a similar manner to a light dimmer, where they are gradually turned on for a part of each cycle to control the voltage by varying the conduction angle of the SCR. Increasing the conduction angle will increase the average output voltage. By variation of the conduction angle, the output voltage can be reduced during starting and then the SCRs are bypassed.

968 Precise killometer calculation by underground cable fault detector EE

Feeding a voltage through a fixed set of resistors representing distance in kilometers and resulting varying current fed to a ADC interfaced to a micro controller outputs the display in kilometers based on current flow at specific fault created by a set of switches for testing purposes.

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969 Power factor control by automatically engaging approperiate number shunt capacitors EE

The time lag between the zero voltage pulse and zero current pulse duly generated by suitable operational amplifier circuits are fed to two interrupt pins of the microcontroller where the program takes over to actuate appropriate number of relays at its output for bringing shunt capacitors into the load circuit to get the power factor till it reaches 0.95.

970 Three phase fault analysis with auto reset on temporary fault and permanent trip otherwise EE

six number of step down transformers used for forming one star and another delta at the output with a set of switches to inputs LL, LG, 3L fault that triggers a 555 timer in monostable to reset or permanently trip the output relay connected to another 555 timer in astable.

971 Cycle stealing of mains supply used to control ac power without generating harmonics EE

Cycle stealing is a method to remove portions of full cycles/one cycle of an AC signal for controlling AC power across AC heater loads controlled by a set of switches interfaced to a microcontroller with a loaded programme in the memory as required by an industrial furnace.

8051 Micro Controller Projects 1001 24-Hour ON/OFF Clock Timer using Micro Controller 8051

It's a 4 digit,7 segments,24-hour clock timer that can be used to control any application.You can program both ON time & OFF time with this project.It requires a 3V battery back up.Useful for switching loads up to 500W.

1002 Programeble School bell timer (12v DC) IC 8051 8051

This versatile programmable school timer can be used to display real time clock as well as school bell timings on LED / LCD Display.It can store about 8 bell timings and activates the bell through a relay at every predetermined period.

1003 Micro Controller Annunciation System (12V DC) 8051

This Annunciation system detects up to 8 different faulty conditions and informs the operator about them by means of LEDs and playing Voice messages stored in a No Volatile Memory.It simultaneously sounds a Buzzer alarm and Lights a Fault indication Signal connected to it.

1004 8 Channel Analog to Digital Converter (A to D) 8051

This analog to digital converter read up to 8 different Analog signal (e.g temperature) and display on 16x2 line LCD.

1005 8 Zone Intruder Alarm System (230V Ac) 8051

A Micro controller based intruder alarm can offer the following features.(1) Moritoring and singnaling of each sensor for activation and cable continuity.(2) Temper input panic push button.(4) LED's indicate.

1006 Home Automation Control System using DTMF Telephone Line (12V DC) 8051

Dial your number using DTMF phone or cell phone from anywhere in world and remotely turn On/Off any of 8 relays.The MCU on ther interface senses Telephone ring,Automatic telephone pick up,and line hang up,displays information on a 16x2 LCD module and controls the relay switching.This interface uses the popular MT8870 DTMF decoder IC analog with AT89C52.

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1007 Micro Contoller based Security Access System using 89c51 AT89c51

This project uses Micro controller to offer Door Access with the following feature(1) - 4x4 matrix keypad for entering Access Code.(2) - 16x2 Line LCD module to display status and Error Message (3) - 3A Relay to control / Operate electronic lock or devices connected to the interface.(4)-On board flash EEPROM that stores system Parameters and Access Code and needs no battery backup.(5)-Buzzer to annunciate a key press and error situation.

1008 Microcontroller based telephone Intercom system [230 AC] 8051

This is simple but effective solution for internal intercom system for home,office,school,collage or banks. The system is intended for up to seven sets each of which generates a pulse code when a number is dialed or keyed in. This projects uses microcontroller to offer the following feachures.

1009 Security Auto Dailing System [12V DC] 8051

The Projects consists of two sensor(door sensor and fire sensor) whenever it is detected by the any one of the sensor it sends a signal to the Auto dialer. The Auto dialer wil then automatically dials up to four preset telephone phone numbers and plays your prerecorded message.

1010 Water Level Controller with LCD Display 8051

Here is a micro controller based,versatile circuit with indicates the level of water in a tank. This circuit produces alarm when water level is below the lowest level L1 and also control the pump (on and off) when water just touches the highest-level L8. The circuit is designed to display 8 different levels on LCD display.

1011 Real Time Clock using (AT89S8252) AT89s82521012 Electonic Voting Machine using IC 89C51 AT89c51 1013 Stop Watch Using IC 89C51 AT89c51 1014 Count down Counter Using Atmel AT 89C51 AT89c51 1015 Fastest Finger First using micro 89C51 AT89c51 1016 Microcontroller basedDC Motor Controller using AT 89C51 AT89c51 1017 Microcontroller base Code Lock (Using AT 89C2051) AT89c51 1018 Microcontroller based Count Down Timer AT89C2051 - 0603

Here is a microcontroller based timer that performs countdown operation for upto 99 minutes with two 7-segment displays showing the actual time left. AT89C2051 chip is used in this circuit. The program can be easily modified according to users requirement.

1019 Microcontroller based Ultrasonic Distance Meter-0802

This project employs 40khz ultrasonic transducers for distance measurement up to 2.5 metres.Ultrasonic transducers measure the amount of time taken for a pulse of sound to travel to a particular surface and return as the reflected echo.

1020 Microcontroller based LED Light Chaser 1021 Microcontroller based Bi-Directional Visitor Counter-0701

Here is a low-cost AT89C52 microcontroller-based visitor counter that can be used to count the number of persons at a place. It consists of three 7-segment displays (LTS543 ) to display the number of visitors upto 999. The circuit works off a 5V DC supply.

1022 Microcontroller based Tachometer-0801

This is an easy-to-make photoelectric based tachometer project for measuring the RPM(revolution per minute)of rotating shaft,shop-floor tools andmany household machines without any mechanical or electrical interface.

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1023 Microcontroller Based Temperature indicator using 89C52-0407

It is microcontroller based temperature temperature indicator that displays the temperature in the range of -55 degree celcius to 125 degree celcius. The Indicator output the calibrated date in digital form . It uses a temperature sensor Chip.

1024 Microcontroller Based Code Lock-0608

This simple code lock project is based on a 20-pin ATMEL microcontroller AT89C2051.It employs a 4-dihit sequential code with time-out security feature.Apart from the microcontroller, the main conponents include CD4050 non-inverting buffer,LCD display.

1025 Microcontroller Based DC Flush System-0612

Here is an automatic flush system(toilet & urinal)that automatically flushes the fixture when the user departs.It employs an AT89C2051 micrcontroller and an infrared sensor to detect a user approaching the fixture,then waits until the user departs. It employs an AT89C2051 microcontroller and an infrared sensor to detect a user approaching the fixture, then waits until the user departs. It also flushes before the person departs if the person is present for more than the preset time (5 minutes). CD4050 is used as a buffer for the output ports of the microcontroller, TSOP1738 is used as an IR sensor and a solenoid is used to actuate the flush from a 6V power supply with a battery backup inside the unit.

1026 Microcotroller Based Stepper motor-0410

This circuit is based on 89C51 microcontroller.It provides to control the rotation of a DC stepper motor in clockwise as well as anticlockwise direction. This module is simple and easy to construct and can be used in many application e.g. Machine control,Robotics.

1029 Microcotroller Based Industrial Timer-0706

Here is a simple industrial timer based on 40-pin Atmel AT89S52 microcontroller that performs count-down operation up to 9999 minutes/second with four 7-segment displays showing the actual time left.The relay energises as you press the start switch.

1030 Microcontroller based Water level controller cum motor protector-0702

This circuit uses an AT89C51 microcontroller as the main controller. It can be used to switch ON and OFF the motor depending upon the level of the water in the tank. The status is displayed on an LCD module. The circuit also protects the motor from high voltage.

1031 Remote Control Digital Audio Processor with remote in NEC format-0502

This infrared (IR)remote controlled digital audio processor has four stereo input channels and one stereo output.The processors in this system control various functions of each channel and output them to your audio amplifier.

1032 Micro controller based Moving Message Display 89c51 Micro Controller Projects

1050 12 Channel Infrared Remote Controle System (kit with remote hand set)

This is the multi channel infrared Remote system offers far too many features to list them all here.(1) 12 channels,each individually controlled (2) Infrared operated from commercial hand-held,Infrared remote,(3) Long range(>15m) operation,(4) Relay output 10A rated changerover contects.(5) Two banks of relay.(6) Each bank can be set to momentary or toggle(push on,push off) mode.(7) Relay Indicator LED.(kit with remote handset).

1052 14 Channel Infrared Remote Decorder Module(6-12V DC)

This Kit uses a commercial 14 button remote control,unit to put an active low signal onto one of 14 output pins on a decoder IC.That is,when a buttorn is pressed the pin corresponding to that button goes low.Normally,each of the 14 output pins is high.

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1053 Digital Multimode Timer with LED Display (12V DC)

This is the low cost, micro-controller based universal timer module for any industrial & commercial application.Timer can countdown from 1-99 seconds,1-99 minutes of 1-99 hours.Timer has 4+1 press buttons , UP, DOWN, MODE, START + RESET.UP,DOWN set time that we want to count dow.once we set time,set MODE ,we can start countdown sequence.After countdown the relay turns on.To restart timer,we must press RESET button.

1054 Audio Comunication using Fiberoptic Cable

This kit is designed for audio communication you can Transmit your voice from One end to Another with the Help of fiber optic cable kit comes along with circuit diagram,working explanation,part explanation,assembling instruction,basic description of fiber optic cable & components data sheets.(kit with fiber optic cable,speaker & power supply).

1055 Ultrasonic Movement Detector

This circuit will find many uses as it restricts entry to an unwanted person in a particular area scanned by the transducer.The circuit in turn triggers the relay to put on txternal load up to 1000w.

1056 8 Channel RF Remote Control [12V DC]

This is the multi channel RF Remote system offers far too many features to list them all here, [1] 8 channels,each individually controlled [2] long range (100 to 300m in open space) operation [3] Relay output 5A rated changeover contactsor toggle (push on,push off) mode.Relay Indicator LED.

1057 Microcontroller Based Speedometer Cum Odometer

This project describes how to build a digital speedometer-cum-odometer for your motorbike. The features of the project are digital readouts for speed in km/hour and distance in kilometres, economical and easy to construct.

1058 Remote controlled real time clock with device controller-0706

This circuit is based on ATMEGA16 microcontroller and DS1307 real time clock chip. A 16x2 LCD display is used for user interface to display time, date and various settings. A real time clock chip is set to control five different alarm settings.

1059 Microcontroller Based School Timer

This versatile programmable school timer can be used to display real time clock as well as school bell timings on four 7-segment LED displays.It can store about 20 bell timings and activates the bell through a relay at every predetermined period.

1060 Secured Room Access System (Atmega 8535)-0710

This microcontroller-based digital is an access control system that allows only authorised persons to access a restricted area.When someone tries to enter the restricted area by entering invalid passwords continuously,the system locks itself.

1061 RTC-Interfaced Multiple Device Control with remote (89c52)-0609

This project is based on AT89C52 Microcontroller and DS12887 Real-Time-Clock chips. It also includes an 82C55 Programmable Peripheral Interface chip to program the switching operation of 24 electrical appliances. A 16x2 LCD module is used as a user interface to display the time setting such as month, date, hour, minute, device number and on/off status of the device. Philips TV remote control is used to program the microcontroller and control the devices. Other main components used in the project include 74LS138, 74LS573, 7400, ULN2803 and TSOP1738.

1062 Microcontroller based Solar Charger with 10W Solar Panel

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PIC Microcontroller Project 1101 Programeble Count Down Timer Using PIC Micro (230v) PIC16F..

This count down timer is very useful for industrial application. Its time delay is programeble, from 1 minute to 99 minutes with 4 digit 7 segment LED disply. Kit include circuit diagram, working explanation, part explanation, assmbling instruction & comp

1102 Micro Controller Based Programmable Security Door Lock PIC16F..

This Project is a very useful door security application. It operates a relay (for example to open a door) for a few seconds when a valid code is entered.The secet code can be changed any time after entering the current code.Kit includes the relay for Door.

1103 Stepper motor controller using micro controller (kit with 8v2 2 phase unipolar stepper motor) PIC16F..

This kit is very useful to control a 2 phase unipolar pm type DC stepper motor. Kit include circuit diagram, working explanation, part explanation, assmbling instruction, a basic discription of stepper motor component data sheet. excellent for eng. student.

1104 40 MHZ Frequency Counter using PIC Micro Controller PIC16F..

This project proposes s simple frequency reader,which can be used as a workbench instument.In face it exhibits several very interesting features,like a maximum working frequency abvoe 40 MHz, a 10 Hz resolution,a low consumption (50 ma) and a very simple.

1105 Ultrasonic Range Finder Using PIC Micro Controller PIC16F..

This project is a handheld range finding device,using ultrasound and a PIC 16F84 microcontroller.A 16x2 LCD displays the measurement in meters,feet & inches.Kit includes circuit diagram,working explanation,part explanation,assembling instruction & component.

1106 Micro Controller Based wind Speed Meter with 16x2 LCD Display PIC16F..

A completely solid-state anemometer using ultrasonic Techniques to measure wind speed.Highly accurate. LCD readout in metric or imperial Displays up to 50 mph.Kit Comes Along with Circuit Diagram,Working Exolanation,Part Explanation,Assembiling Instruction & component.

1107 Security Access system (230v) PIC16F..

The micro controller base digital lock presanted hear is an access control system that allows only authorised person to access to a restricted area.when an authorised person enters predetermined number (Password) via the keypad / the relay opparated for a

1108 DTMF Telephone Remote Control PIC16F..

This device connects to the telephone lone and can be used to remotely control up to 3 relay outputs using a DTMF (tone dialing) telephone. A PIC micro controller controls the switcher.

1109 Micro Controller Based Dual Temperature Meter with RS232 Interface PIC16F..

The Micro controller is used to read and display two LM35 based Temperature Sensor Connected to it on a 16x2 Line LCD module.This information is also sent to the PC via RS232 for Data logging or display.

1110 Micro Controller Base Heartbeat Monitor PIC16F..

The Heartbeat monitor design presented here takes advantage of a OUC16F87X micro controller's capabilities and uses an alphanumeric LCD.Screen,Plus serial data link to a PC-compatible computer.The design can be used as a handheld unit without using a PC. In this role it outputs heartbeat waveform to the LCD.

1111 SMS Based Device Control Using GSM Modem PIC16F..

A GSM based SMS Control System; u can just send SMS by cell phone and control eight Devices.Displays information on 16x2 LCD module and controls the relay switching. This interface uses the Micro controller and GSM Modem.Complete solution to your Home

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Automation by SMS.(Kit with GSM modem).

1112 Programmable Temperature Controller [12V DC] PIC16F..

It's based on a PIC MCU and National Temperature Sensor.The Temperature is displayed on a 16 x 2 LCD display,and two buttons are used for setting parameters.On Board flash EPROM that stores Parameters and needs no attery backup. A high current relay switches the load,which can be a heating elememt.

1113 Digital Remote Control Audio Processor [12V DC] PIC16F..

This project presents an infrared remote control digital four channel audio processor.It is based on micro controller and audio processor chip. Its main features are 1) infrared remote control. 2) Full function keys on for audio processor controlling 3) four channel stereo input.4) volume,baas,treble,mute,surround and balance control 5) setting desplay on ten individual LED.(kit with remote hend set)

1114 RF ID Door Access Systems [12V DC] PIC16F..

RF ID is a wireless solution for the security application. This is the wire less door access system using micro controller and RF module. In this system one reciver connected with the door and user have on RF ID tag (Tx), its read the Id of valid user. If any valid user comes near the door with the RF ID tag,door will be open automatically for few second and display the user ID on LCD Display.(kit with 2tag)

1115 Smart Card Based Door Access System with LCD [12V DC] PIC16F..

This is smart card based Access system for Bank ATM,Bank Lockers,Schools,Collage and home security application. Its using micro controller and smart card(memory card). (kit with four card)

1116 Programmable Scrolling Message Sign Board [12V DC] PIC16F..

This is a great kit to help you build your electronics knowledge plus when you are done building it you will have a product that you will actually use. This scrolling sign has different characters and can store messages up to 4000 characters long, The message are store in memory even afterpower-down.so,it'll be there when you turn it back on the scroll rate is adjustable to 10 different speeds.you can connect directly to your computer and type message with your keyboard.

1117 SERVO motor Controllder Board (Preset) PIC16F..

Our 5 channel Servo Controller Board is a solution for controlling up to 5 servo via onboard preset or potentiometer. [12V DC]

1118 SERVO motor Controllder Board (Switch) PIC16F..

Our 5 channel Servo Controller Board is a solution for controlling up to 5 servo via onboard or external switches. [12V DC]

1119 Temperature Indicator Using PIC 16F877A 1120 LED cube in dynamic animation PIC

Numbers of LED's in a cube of 5x5x5 are interfaced to a PIC, MC16F877A in a mess of rows & columns to give a magical 3D effect to the same by approperiate program .

1121 RGB led intensity with PWM PIC

Different colors LED's in 3 different series circuit are driven by power mosfet being controlled from a MC in specific time interval for a magical display.

1122 Anti sleep alarm for students PIC

Using a PIC micro controller together with an RTC, real time clock specific time interval alarm with pre-flashing light to check awakeness failing which lights and fans are automatically switched off.

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1123 DAM water level intimating system through GSM PIC

Rising water level are sensed by humidity sensor interfaced to MC that outputs warning sms by GSM modem to the concerned authority for approperiate action.

1124 Vehicle theft intimation to the owner on his cell phone by GSM PIC

Theft intimaton of the vehicle over sms using GSM modem to the owner while unauthorised door entry is made. Owner can send command through mobile to stop the engine whose ignition is dissabled through a relay fed from the microcontroller which gets command from the GSM modem.

1125 Street light that glows showing the road ahead for ½ km only on sensing vehicles or any movement PIC

Emitting Diode (LED) replaces HID lamps by engaging a programmable microcontroller that controls intensity by pulse width modulation which enables energy saving during late nights considering low traffic density. The pulse width becomes very narrow on sensing no movement of vehicles. As the vehicle forwards, the intensity goes on increasing for few lights ahead and as it passes away the intensity goes on falling.

1126 Density based traffic light timing control PIC

The project is to solve traffic congestion by a dynamic and automatic traffic light control system based on the traffic density using appropriate system and hardware. IR sensors across the road used to monitor the length of vehicles blocking the road traffic. The signals from the IR receivers are fed to the MC to follow the program with the time as desired.

1127 DTMF based sine wave generator for very specific pure sine wave for reference purposes PIC

DTMF encoder IC is fed from a micro controller interfaced to 8 push buttons for generating very precise sine wave frequencies for calibration purposes.

PC Based Project 1301 8 Channel Remote Control using Printer port [12V DC]

This kit with the help of a computer program can control External Equipment Using your printer Port with the of control Relays.Kit Comes Along With Circuit Diagram,Working Explanation,Part Explanation,Assembling Instruction,Basic Desciption of PC Serial(RS232) port & Component data sheets.

1302 PC Based Dual Stepper Motor Driver (Kit with Stepper motor)

This kit Enables Users to Control A Stepper Motors via A Parallel/Printer Port of A PC.Kit comes Along with circuit Diagram,Working Explanation,Part Explanation, Assembling Instruction,Basic Desciption of Stepper Motor,PC Parallel port & Component Data Sheets.

1303 RS232 Anolog To Digital Converter using AT89C51 MCU

A 8 - bit ADC chip interface with the 8051 micro controller. A micro controller read the data and send it to the serial prot(RS 232).

1304 PC to PC Communication Using Fiber Optic Cable

This kit is designed for data Communication.You can transmit your data from One PC to another Pc with the Help of Fiber Optic Cable.Kit comes along with circuit diagram,working explanation,part explanation,assembling instruction Basic description of PC serial port(RS232),Fiber Optic Cable & Datasheets.

1305 Online Monitoring and Control System [12V]

This is a Micro controller based project to control 8 power Outlets By net. These days' permanent Internet connections like cable. Are spreading among the people so web based devices started. To useful even for the normal Households and industrial application.The Device can be accessed from anywhere on the'Net".

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1306 PC Based Door Access and Attendance Logger using RF ID.

RF Id is wireless solution for the security application. This is the Wire less door access system using micro controller and RF module. In this system one receiver connected with the door and Computer serial port for attendamce recording,it's read the ID of valid user.If any user come near the door with the RF ID tag,door will be open automaticaly for few second and display the user ID on PC.PC store Attendance with date and time.(kit with two tag)

1307 Appliance control by Voice [12V DC]

This is the PC based Relay controller,which can be controlled by your voice commands,using PC based voice recognition and micro controller interface. You can control appliance by voice.

1308 PC based Door Access and Attendance Logger Using Smart Card.

This is smart card based Access System for Bank,ATM,Bank Lockers,Schools,Collage and home security application.It's using micro controller and smart card(Memory Card). Pc interfaces for Display user ID,Photograph and stores the user Attendance with time and date(kit with four card).

1309 PC Based Thermometer [12V DC]

The Microcontroller is used to read and display LM35 & also send data to PC via RS232 for data logging or display.

1310 PC Controlled Data Acquisition System

This kit connects to the standard PC parallel printer port and provides a 'real word'interface for your computer.It enables the PC to both monitor and control external events and devices.The world is a mixed analog & digital world.With the appropriate sensor the PC can monitor physical variables such as pressure,temperature,light intesity,weight..etc,process the information and then use the result to control physical devices such as motor,siren,relay..etc.

1311 Wireless ROBO controller by PC [12V DC]

The RF based transmitter and receiver board is designed for wireless motor controlling. Transmitter connects with PC serial port and sends command (kit with PC soft wear.) Receiver has two channel motor driver to control a DC motor (Left,Right and Stop).

1312 Wireless Device Controller by PC [12V DC]

The RF based transmitter and reciever board is designed for wireless Device control. Transmitter connects with PC serial port and sends command (kit with PC Softwear).Receiver has eight relays for controlling external load.

1313 USB Device control by PC [Triac]

Our USB Device control Board is a solution for controlling up to 8 Triac(Device) via PC USB port. This is main features list, [1] Up to 8 triac control [2] No need External Power Supply [3] Data received indicator LED [4] LED indicator to display triac on.

1314 USB Device control by PC [Relay]

Our USB Device control Board is a solution for controlling up to 8 relay(Device) via PC USB port. This is main features list, [1] Up to 8 relay's control [2] Operate on 12V DC Power Supply [3] Data received indicator LED [4] LED indicator to display triac on/off state.

1315 RS232 Servo Controller Board [12V DC]

Our 8/16 Servo Controller Board is a solution for controlling up to 8/16 Servos via PC. There main features, [1] Individual servo controlled via PC serial port interface [2] RS232 serial port interface [3] Windows based softwear for Manual and Automatic [4] Windows based interface-works with WIN95,98,2000,ME and XP [5] Microcontroller based design for greater flexibility and ease of control (kit with RS232 data cable).

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1316 PC Programmable Intruder alarm system [12V DC] PC

This security system is designed to be used in a simple installation with just a hidden switch and not a keyboard.there are several features such as a battery monitor, entry delay,exit delay,bell time that also make it good for remote locations just run off a battery.

1318 Two Channel PC-Based Oscilloscope-0612

Presented here is an oscilloscope that accepts input up to 10 kHz with ±16V from input source and display the output waveform on your PC monitor. PIC18F2550 microcontroller chip from Microchip is used as the main controller.

1319 PC-Based Automatic Time Manager-0708

Here is a project for controlling a school bell or a scheduled shift-timing alarm of a factory automatically.The load connected to the output of the project can be electric bell or a hooter.The timing can be programmed for everyday schedule as per individual.

1320 PC Based Timer-0502

This circuit interfaced with PC computer through D-25 pin male connector, can switch on and switch off the device for a particular timing required by the user. The program is written in C languages & compiled in Turbo C compiler. The maximum timing of the circuit is for 18 hours.

RFID BASED Projects 2001 RFID Based Security System 2002 RFID Based attendance System 2003 RFID Based toll tax deduction system 2004 RFID Based Automatic Car Parking 2005 RFID Based Library Management System 2006 RFID Based Shopping Cart 2007 RFID Based Local Vehicle Tracking System 2008 RFID Based Electronic Road Pricing for Controlling the traffic 2009 RFID Based Inventory Tracking System 2010 RFID Based ATM Machine 2011 RFID Based Platform to Display Position of coach 2012 RFID Based Railway reservation 2013 RFID Based Automatic Challan System 2014 RFID based Prepaid Energy Meter with recharge Option 2015 RFID Based Voting Machine 2016 RFID Based Banking System 2017 RFID based device control & authentication

RFID card swiped over the card reader by the vehicle driver enables the motor interfaced through the driver IC to the controller to open the gate for vehicle entry .

2018 RFID based attendance system EC

RFID card with details of the employee keep tracking of their attendance while swiped on the RFID reader interfaced to a microcontroller with LCD display for indication.

2019 RFID guided automatic parking permission for vehicles in cellar at commercial complexes EC

RFID card swiped over the RFID card reader by the vehicle driver enables the motor interfaced through the driver IC to the controller to open the gate for vehicle entry.

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ROBO Kits 2501 Remote Controlled Land Rover - A DIY Robotic Project -0606

The project integrates a number of circuits to achieve the working model of a Land rover vehicle. It can be remotely instructed to perform simple functions through appropriate push-button switch on the remote control like : move forward, backward, right and left.

2503 Cellphone Operated Land Rover (Atmega 16)-0807

In this project,the robot is controlled by a mobile phone that makes a call to the mobile phone attached to the robot.In the course of a call,a tone corresponding to the button pressed is heard at the other end of the call.

2505 Microcontroller based ROBO Car with Major Electronic Components 2506 Pic based line following Robot 2507 Pic based wall follower Robot 2508 Pic Based Edge Detector/Avoiding Robot 2509 Pic Based Obstacle Detector /Avoding Robot 2510 URDP (Universal Robotics Development Platform)Chassis 2511 Wireless Computer Control 2512 Golbo—Robotic Platform 2513 Universal Robotic Development Platform - URDP 2514 Robotic Arm and Gripper Kit 2515 Robot Controller 2516 tMECH Kit (OPTO card based Robotic Kit) 2517 tBOT Kit (8051 based Robotic Kit) 2518 tROBS Kit (AVR based Robotic kit 2519 tMICE Kit (Micromouse Assembled Kit) 2520 Cell phone Controlled Robots 2521 Obstacle Avoiding Robot 2522 Wall Follower Robot 2523 Edge avoiding robot 2524 Object sorting robot based on color without conveyer 2525 Vacuum Cleaning robot 2526 Pipe Climbing Robot 2527 Fire Fighting Robot 2528 Pick and Place Robot 2529 Robotic for klift 2530 Object sorting robot based on color with conveyer 2531 Agriculture Robot 2532 Spider Robot-Six legged robot 2533 Hexapod - Six legged robot 2534 Bomb displacing robot with tension controlled soft catching arm

A moving robot control wirelessly to reach the suspected bomb site to relocate the bomb at different place while handling the same carefully by a soft catching arm duly controlled by interrupt monitored motor to avoid extra pressure on the susspected object for safty reasons.

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2535 Cell phone operated robotic vehicle

Robotic vehicle that can be operated from any where using cell phone sent commands.Once the contact is established over dialling the cell phone mounted on the robotic vehicle it accepts the tone commands thereafter for the operation of the vehicle.

2536 Wireless operated Fire extinguisher vehicles with water jet spray

Fire extinguishee vehicle loaded with water tanker and pump controlled remotely over wireless to throw water jet to the fire.The movement and the pump control are wirelessly controlled by a hand held RF transmitter to send commands to the RF receiver mounted on the fire extinguisher vehicle.

2537 War field spying Robot with night vision wireless camera

A RF based moving vehicle mounted with wireless night vision camera controlled remotely over wireless to send real time pictures of enemy activities in war field.The movement is wirelessly controlled by a hand held RF transmitter to send commands to the RF receiver mounted on the moving vehicle.

2538 War field land Rover that alerts on sensing planted Land Mine ahead

Wirelessly controlled land rover mounted with metal detecting sensors to generate alarms on sensing planted land mine.The movement is wirelessly controlled by a hand held RF transmitter to send commands to the RF receiver mounted on the land rover.

2539 Line following robotic Vehicle that does not require any microcontroller interface or program

An array of two pair of photo sensors comprising IR transmitter and photo diode is fitted in front of the car to detect a black path as well as any turns in the path. By reading the outputs from each of the two sensors, Darlington pair of transistors is biased. Two DC motors are connected to the collector of the transistor TIP122. The motors are able to turn the steering left or right, depending on what logic signal the sensor sends.

2540 A land rover remotely controlled by hand held IR transmitter with flashing LED control

This project uses a robot to extinguish a fire. It is the Robot that can move through any path by IR control and while it is required to face a fire then it extinguishes with help of a Blower fan / or a water pump actuated by the remote. By using IR sensors it can detect the command signals transmitted.

2541 Line following robotic Vehicle using microcontroller interface

Using IR reflected light falling on photodiodes form as input to IO parts of MC to drive a robotic vehicle motor through motor driver IC in a specified black path by reflection from the white surface and then by disabling any one motor in the event of reflection being stopped while going away from the blackpath to take turn till the reflection resumes.

Devlopment Board / Programmer 3001 Manual EPROM Programmer-0503

This circuit can manually programs your EPROM (2716,2732) with the help of 8 way dip switches. Two 8 way dip switches are provided one for the address of the program and the other for the date of the program . This circuit is quite inexpensive and very useful to program.

3003 8051 Development Board

3004 PIC Burner:-The Programmer for PIC16X8X (With Sample Project of Melody Generator)-0209

This kit contains all the necessary items to build a programmer for PIC16X8X series of micro-controllers. PIC16F83, PIC16C84, PIC16F84 and PIC16F84A are some of the many micro-controller ICs from Microchip technology Inc.

3006 PIC programmer

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3007 PIC Development Board 3008 PIC Development Board with Programmer 3009 PIC Development Board with Programmer and Chassis 3010 OPTO Card Rev. 1.0 3011 8051 Development Board Rev 1.2 3012 AVR Development Board Rev 1.2 3013 AVR Daughter Card For UEDP+Programmer 3014 Microcontroller Development Board - 8051 3015 Universal Embedded Development Board 3016 Cool Runner CPLD Development Platform 3017 Spartan III FPGA Development Platform 3018 AVR Programmer (with serial cable) Rev 1.1 3019 AVR Programmer (with serial comm.) Rev 1.2 3020 AVR Programmer - USB 3021 8051 Microcontroller programmer - USB 3022 8051 Microcontroller programmer - Serial Interface

Training Kit / Self Learning Kit 3501 8051 Self learning Kit 3502 AVR Self Learning Kit

AUTOMATION Project 4501 Automatic Wireless health monitoring system in hospitals for patients EC

Monitoring patient health remotely in hospitals over wireless from the patient bed to the doctor’s chamber by RF with LCD display at both ends and optionally an alarm on critical situation.

4502 Automatic Bank robbory intimation to Police station with user programmable number EC

User Programmable telephone number storing by key pad entry enabling auto dial to the police Station or the person concerned in the event of robery.

4503 Automatic Street light intensity control based on vehicle movement in highways

EC / EE 8051

Emitting Diode (LED) replaces HID lamps by engaging a programmable microcontroller that controls intensity by pulse width modulation which enables energy saving during late nights considering low traffic density. The pulse width becomes very narrow on sensing no movement of vehicles. As the vehicle forwards, the intensity goes on increasing for few lights ahead, and as it passes away the intensity goes on falling.

4504 Theft intimation of the vehicle over SMS to owner who can stop the engine remotely EC

Theft intimaton of the vehicle over sms using GSM modem to the owner while unauthorised door entry is made. Owner can send command through his mobile to stop the engine by activating the relay interfaced to a microcontroller along with the GSM modem used for the purpose.

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4505 SCADA ( Supervisory Control and Data Acqisition) for remote industrial plant operation

EC / EE

Supervisor sitting on the PC terminal is able to control plant parameters remotely over Rs 232 network while monitoring the data acquired through several sensors.The project uses a front end for the control and a backend with microcontroller interfaced to an ADC from temperature sensors for data collection and control.

4506 Synchronised traffic light signal system(CAN) to ease traffic congestion in metros EC

All the traffic junctions in a main road are synchronised for signal lighting such that the vehicle gets green signal at all the junctions while moving at a normal speed.This is achieved by interconnecting through Rs232 protocall all the individual microcontrollers used at each junction to keep tarckling and then adjusting the time accordingly so that once the moving vechile reaches the junction it gets green signal.

4507 Secrecy maintained in parallel connected telephones by enabling only one user at a time EC

This Project can be used in houses and offices in which more than one telephone is connected in parallel through a single telephone line. The project is used to connect a maximum of four telephones in parallel. When any one of the phone is lifted, all the other lines are disconnected from the telephone line.

4508 Automatic irrigation system on sensing soil moisture content EC

The circuit comprises of sensor parts built using op-amp IC LM324 and are configured here as a comparator. Two stiff copper wires are inserted in the soil to sense whether it is dry. The Microcontroller turns the motor ON and OFF based on sensors condition that is dry or wet respectively. .Sensor signals are operated with the control of software that is stored in ROM of the MC.

4509 Using TV remote as a cordless mouse for the Computer EC

A typical TV remote sends coded infrared data that is read by a sensor which is then burnt to a micro controller the output of which shall drive desired operation through serial port connection as conventionally performed by the PC Mouse. All the functions are monitored and controlled by the 8 bit microcontroller AT89c52 /51.

4510 Dynamically changing signal light time allotment in street junctions based on traffic density

EC / EE

The project is to solve traffic congestion by a dynamic and automatic traffic light control system based on the traffic density using appropriate system and hardware. IR sensors across the road used to monitor the length of vehicles blocking the road traffic. The signals from the IR receivers are fed to the Microcontroller to follow different time for different level of traffic.

4511 Controlling any house load using DTMF technology through land line or cell phone

EC / EE

The main scope of this project is to send digit commands from one cell phone to be received by another cell phone to receive the tone mode commands which are then DTMF (Dual Tone Multi Frequency) decoded. The receiving cell phone codes are then fed to a microcontroller which is programmed to recognize those codes for operating any kind of load duly interfaced through relay drivers and relays (or motor driver and motor) as per the sent command from sender’s mobile.

4512 Operating several loads in a multiplex or office from computer through COM port

EC / EE

This project external electrical load applications controlled with the help of PC. PC is connected to microcontroller through MAX 232 level shifter, ULN (Driver) is used to drive the relays for connecting to external devices. DB (RS-232) connector is used to connect to PC com port.

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4513 Operating house electrical loads like lights and fans using the standard TV remote EE

A typical TV remote sends certain coded infrared data which is then burnt to a micro controller to drive desired output while same signal is received from an IR receiver interfeced to it.The output from the microcontroller drives the load through relays or opto isolators and triacs. All the buttons of the remote can be used for as much number of loads to be operated.

4514 Automatic door opening system by PIRO Infrared sensor with interrupt monitored motor

EC / EE

Automatic door opening by sensing any approaching human being by piro IR sensors interfaced to a programmed microcontroller that drives a motor through motor driver IC with locked rotor protection some system for door operation.

4515 Railway level crossing gate control through SMS by the station master or the driver EC

Raiway level crossing gate motor ,controlled by the station master or the engine driver through GSM modem interfeced to microcontroller for deriving an output to dive a relay for the gate motor operation.

4516 Street light intensity control from 100% down to 10% and then off spread over dusk to dawn EE

White Light Emitting Diode (LED) replaces HID lamps by engaging a programmable microcontroller that controls intensity by pulse width modulation duty cycle which enables energy saving during late nights considering low traffic density.

4517 Automatic alternate supply controller from 4 different sources to ensure no break power

EC / EE

The main scope of the project is to consume the power from supply mains, generator, and wind power and solar optimally by using appropriate programme through microcontroller in most cost effective way.

4518 Programmable logic control ( PLC) for sequentional load setting timing control

EC / EE

Objective is designing a microcontroller based programmable time setting by the user through microcontroller architecture loaded with an application program. Switches are provided for set mode, auto mode , manual mode and time change mode. Machines will run based on/off sequentially in auto mode in default time settings or set mode time setting or manual mode depending on the user’s need and flexibility.

4519 Preset down counter with relay controlled load for life cycle test EC / EE

A presetable counter with key pad entry that counts down from the set number till it reaches zero with relay operation connected to a load that switches ON & OFF is used for life cycle test of the gadget under test say a lamp to determine its life.

4520 Precise temperature control for incubators used in hospitals for the pre born child growth EC

Microcontroller observes temperature readings taken from display unit and compares with the keypad programmed temperature value to control the heater (ON/OFF). Here the controller continuously polls the temperature with certain regular time intervals and displays over the 7_segment display unit for the Microcontroller (Intel 8051) to enable the whole operation by executing the program.

4521 Failed Railway track warning intimation over GSM network to the station master EC

Damaged or cracked railway track detected by falling loop current interface to micro controller that outputs a signal to a GSM modem for sending a signal to the station master to direct the train driver to stop the train.

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4522 Smart card enabled ignition key for vehicles to prevent theft EC

The project is developed to identify the employees with ID cards over the campus, where a module is provided to read the ID number from card. Whenever card ID number in the card is matched with the inbuilt ID number in the code then LCD display would indicate that the card being accepted with a relay used to enable opening and closing a door after a delay to avoid the next one to enter .

4523 Sending an SMS for electrical load control that re-sends an acknowledgement of the status

EC / EE

An sms sent through the cell phone to a distant location GSM modem for electrical load interfaced from a micro controller through relay and relay driver to switch on and switch off the same with acknowledgement sent back to the sender on sms upon the action taken and the status of the load.

4524 Mobile phone keypad sensed password entry for door opening EC

DTMF tones generated by any cell phone is received by an audio sensor interface to a dtmf decoder the output of which is fed to the microcontroller that outputs a relay for door lock operation.

4525 Large digit display of dialled telephone numbers for std billing centers EC

Dialed telephone numbers are picked up by a dtmf decoder to feed to a micro controller to drive ten numbers seven segment LED displays for better visibility.

4526 Proximity detector using ultrasonic sensors for industrial applications EC

This ultrasonic proximity detector comprising independent battery or AC powered transmitter and receiver sections make use of a pair of matched ultrasonic piezo ceramic transducers operating at around 40 kHz each. This circuit is used in getting reflected signals from the object ahead to feed that by a program to the microcontroller. Opamps are used to amplify the weak signals received upon reflection by the obstacle by the receiving ultrasonic transducer sent by the transmitting one, to switch on appropriate load.

4527 Passenger counter in public transport to alert the driver for excess entry EC

This application keeps the database of the number of persons entering as well as exiting. 555 timer driven 38 KHz signal from LED’s gets interrupted on to the IR receiver to sense the person entering as well as exiting. This signal is fed to AT89C51 micro controller for analyzing and control purpose with LCD displays on the number of persons in and out.

4528 A low cost microcontroller based system high performance AC motor drives

Based on the principle of firing angle control of two thyristors connected in anti parallel is fed for the output to the control circuit. The firing angle would be manually adjusted to maintain the load power in the event of fluctuating AC voltage from high to low and vice versa.

4529 Micro controller based lamp life extender by ZVS (Zero Voltage Switching) using thyristor

Incandescent lamps exhibit very low resistance in clod condition due to which it draws high current, resulting in failure on switching. Engaging two SCRs in anti parallel or a triac the switching on time can be precisely controlled by firing after detecting the zero cross point of the waveform.

4530 Solid-state relay with ZVS properties analyzed on CRO

A three phase solid state relay that incorporates three single phase units where each phase is controlled individually by a power triac with optional snuber network and an optically isolated triac driver with current limit by a constant current arrangement. The zero crossing feature of an opto-isolator ensures lower generated noise and sudden inrush currents on resistive loads and moderate inductive loads.

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4531 A microcontroller based control of current source converter fed reversing induction motor drive by remote control. Ideal for exhaust fans to throw air out and bring air in by remote as desired

The controller receives the Infrared Signal from the IR remote, the code of which is identified by the receiver that switches on/off the appropriate triac for a split phase induction motor to achieve desired direction.

4532 Biometric access control by thumb identification and access to secured area (Sensor on hire)

The project identifies the employees over the campus by a thumb impression by which each and every employee in the campus is identified. Whenever the thumb impression is matched with the inbuilt identification then the display would allow the entry together with an output to actuate a lamp or optionally a motor for gate operation purposes. By this way we can keep official security at doorstep.

4533 Portable coded wireless message communication between two parties secretly with LCD display

The aim of the project is to send encrypted text message transmitted through RF by using Micro Controller and received at receiver which is decrypted by another Micro Controller where message is displayed over the LCD display. Transmitter gets data from a standard computer keyboard and encrypts with a private algorithm. At receiver end the Micro controller decrypts it with the same algorithm and displays the data on LCD.

4534 An improved scheme for unilateral asymmetric smart card authentication

The project is developed to identify the employees with ID cards over the campus, where a module is provided to read the ID number from card. Whenever card ID number in the card is matched with the inbuilt ID number in the code then LCD display would indicate that the card is accepted .Optionally a relay can be used to open and close a door after a delay to avoid the next one to enter in case access control is required.

4535 RF controlled by hand held unit, laser beam managed bomb-diffusing robot

In this RF remote control is used to control a robot that has the advantage of adequate range (up to 200 meters) besides being omni directional. The micro controller used here has latched outputs and as such one does not have to keep the buttons on remote control pressed for more time, thus enhancing battery life. A laser beam is actuated after the robot reaches the suspected site on to the object to diffuse the bomb.

4536 Design of a high performance non-contact digital tachometer with a microcontroller

This project uses the IR transmitting and receiving technique by reflection of modulated IR rays from any rotating object such as a motor shaft to send interrupt signal to a programmed microcontroller to enable display of the speed. The display can either be a LCD or simple 7 segment LED type. This becomes a contact less tachometer.

4537 Tampered energy meter monitoring conveyed to control room by wireless communication

The main scope of this project is to send message from any tampered energy meter to be received by the control room by means of RF communication. The receiving signals are then fed to a microcontroller, programmed to recognize those tampered meters to provide a display at the control room with buzzer sound on each time it is tampered.

4538 Distance measurement by ultrasonic means

This ultrasonic proximity detector comprising independent battery or AC powered transmitter and receiver sections make use of a pair of matched ultrasonic piezo ceramic transducers operating at around 40 kHz each. This circuit is used in getting reflected signals from the object ahead to calculate the distance by taking into consideration the velocity of sound by a program fed to the microcontroller.

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4539 Portable Programmable Medication Reminder

The project takes care of reminder need of people who forget to take medicines in time. Key pad entry stores the relevant information in an exclusive EPROM with several timings based on a RTC. At the programmed time the message for the medicine is displayed over a 16 digit LCD display together with a buzzer sound to alert the person for taking the appropriate medicine.

4540 User programmable password based hotel room door lock

The microcontroller based Door locker is an access control system that allows only authorized persons to access a restricted area. The system is fully controlled by the 8 bit micro controller AT89C51 which has a 2Kbytes of ROM for the program memory. The password is stored in another dedicated EPROM which can be changed at any time unlike a fixed one burnt permanently on to the microcontroller.

4541 Mathematical Manipulation of Pure Sine Wave Inverter using microcontroller to develop adaptive PWM (pulse width modulation) to achieve the same instead of traditional square wave output

PWM technology is implemented using Signet SG 3524/ a microcontroller for switching from 12 volt DC through a half bridge MOSFET(Z-44) power devices connected to the main inverting transformer that delivers the out put through a RC filter to get appropriate wave and fairly regulated +- 2% AC output having overload / over voltage control by crow bar mechanism control. Depending on the circuit chosen, the output is in the form of sine wave.

4542 Monitoring Serial Communications in MC Based Embedded Systems using CAN, Control Area Network. Three microcontrollers communicating with each other over pair of wire

As the number of microcontrollers embedded in a product increases the solution for communication among them preferred serially. The paper describes a message based monitoring tool using the RS232 Rx Tx bus features of the MC to communicate between 3 MCs.

4543 A single-chip microcontroller based real-time PWM inverter

A single-chip microcontroller based real-time PWM inverter using PWM IC SG3524 and SCR for charging purposes using firing angle control with auto changeover switch from mains supply to inverter supply in the event of mains failure.

4544 LED based street light with programmable intensity control using solar power from photovoltaic cells

LED based street light with programmable intensity control using solar power from photovoltaic cells and a programmable microcontroller fed to a Mosfet for varying intensity during late nights automatically.

4545 STAMP VALUE CALCULATOR FOR POST OFFICE

Calculating the weight of the letters & value by a balancing arrangement is used to control a potentiometer the output of which is fed to an ADC interfaced to microcontroller having a display

4546 DISH POSITIONING CONTROL BY STEPPER MOTOR /GEARED MOTOR

Programmed microcontroller to enable 180 degree movement of the dish by using a motor for adjustment of the best signal to be received from the satellite.

4547 HIDDEN ACTIVE CELLPHONE DETECTOR

A 555 timer in mono-stable mode along with a high gain op amp is used to detect Giga Hertz induced signals so produced by an active cell phone with in closer proximity to sound a buzzer alarm.

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4548 A LOW COST LONG RANGE FM TRANSMITTER WITH AUDIO MODULATION

A low cost FM transmitter with audio modulation consisting of 106 MHz oscillator circuit, VFO and RF power amplifier connected to a tuned Yagi antenna to cover about 5 km line of site distance.

4549 RAILWAY TRACK SECURITY SYSTEM

The system detects for breakage /crack in railway tracks using line loop current break to sense the same to send interrupt to the controller to send an SMS to the station master through GSM.

4550 BUS POSITION LOCATOR USING ZIGBEE AND GPS

Sending bus number SMS from mobile retrieves signal from the microcontroller interfaced GPS in the bus for over ZIGBEE about its current location in latitude and longitude.

4551 SUN TRACKING SOLAR PANEL

With RTC (real time clock), microcontroller and a stepper motor to rotate the solar panel during day, in steps from zero to 180 degrees to track the sun for maximum power delivery .

4552 REMOTE JAMMING DEVICE

The IR rays of standard TV remote frequency at 38 KHz transmitted at a higher intensity to overpower the TV remote signals as they also work on 38 KHz.

4553 Wireless control of industrial loads By Zigbee

Industrial load switching by a TV remote that sends RC5 coded infrared commands to be read by an IR receiver sensor (TSOP1738) interfaced to a microcontroller that drives desired output load through relays or opto isolators and triacs

4554 WIRELESS DC MOTOR CONTROL SYSTEM by Zigbee Controlling the speed and direction of dc motor using RF.

4555 PC BASED LOAD MANAGEMENT SYSTEM USING ZIGBEE

Controlling any load via PC with the help of wireless through a bidirectional communication system so as to receive acknowledgement about the load status on or off.

4556 ZIGBEE BASED LOAD CONTROLLER

Transmitter sends RF encoded commands to be received by RF decoder receiver to switch on the loads through electromagnetic relay interface microcontroller through relay driver or opto-isolated triac .

4557 IR OBSTACLE DETECTION TO ACTUATE LOAD

38 KHz IR signals generated by 555 timer feeding IR diode received by tuned IR receiver generates an interrupt while obstructed to actuate a load.

4558 AUTOMATIC DUSK TO DAWN (EVENING ON TO MORNING OFF)

LDR input compared op amp turns on the appliances on through relay at falling light intensity in evening and off at the morning light.

4559 RHYTHM FOLLOWING FLASHING LIGHTS

Sound signals sensed by condenser microphone are amplified to feed to triacs to drive the bulbs or LED via opto isolator to increase or decrease the lamp intensity according to the music level.

4560 MAINS OPERATED LED LIGHT IN STRING

A string of LED’s are made to operate at 230V AC by series capacitor drop and current limit resistor and then being rectified to DC for maintaining a safe operating voltage for the LEDs.

4561 THERMISTER BASED TEMPERATURE CONTROL WITHOUT MICRO CONTROLLER

Negative co-efficient thermister used along with an operational amplifier used as comparator to actuate a relay in the event of temperature going out of range.

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4562 PROGRAMMABLE THUMB WHEEL CODE LOCK

Thumb wheel switches used along with binary to decimal BCD encoder’s combination and decimal to binary decoders in a unique password combination to operate a relay at the output to switch on a magnetic lock.

4563 STEP UP 6 VOLT DC TO 12 VOLT DC USING 555 TIMER

A 555 timer used in astable mode outputs twice the AC from 6 volt DC and then by voltage multiplication to generate 12 volt DC by capacitor charge pump method.

4564 OVER VOLTAGE OR UNDER VOLTAGE ALERT SYSTEM

Two 555 timers used on window comparator, the output of which gets active LED indication when voltage exceeds or falls the set threshold value.

4565 6v to 12V DC STEP UP USING 555 TIMER

Voltage doubler along with a 555 timer in astable mode used for step up of ac voltage generator being rectified to dc in voltage multiplier principles to get 12 DC volt from 6Volt DC.

4566 OBJECT COUNTER WITH 7 SEGMENT DISPLAY

An IR sensor receives the interrupt pulses to count and send the data to microcontroller for displaying it on 7-segment LED’s.

4567 INCOMING PHONE RING LIGHT FLASHER

Phone line is connected through an opto isolator that drives a relay / triac through a transistor whenever ring is detected to switch on a 230V lamp to flash in accordance to ring.

4568 SOLAR POWER CHARGE CONTROLLER

A set of comparators used to drive MOSFETs for bypassing the solar panel power in the event of excess charging. Also providing overload and under battery protection to the load used.

4569 WIRE LOOP BREAKING ALARM SIGNAL

A circuit using transistors to operate a load used to drive the transistor in to saturation while loop breaks to switch on a buzzer.

4570 VIDEO ACTIVATED RELAY TO TAKE SNAPS

A circuit using transistors to operate a load whenever a composite video signal is detected at the input.

4571 TOUCH CONTROLLED LOAD SWITCH

A touch sensitive switch with 555 being formed out of a monostable arrangement to switch on relay at output to drive any load.

4572 TONE CONTROLLED DOOR OPENER

555 based different audio tones generated are received by tuned PLL (Phase Locked Loop) IC to actuate relays to open or close the door.

4573 TIME DELAY BASED RELAY OPERATED LOAD

The 555 timer based circuit switches the load after certain delay (0 to 20 seconds) which is adjustable by the varying resistance in the RC time constant.

4574 TELEPHONE CONVERSATION RECORDER

Audio signals are tapped from telephone lines to be fed to a cassette recorder for recording purposes.

4575 ZENER DIODE TESTER

250mW zener diodes are too miniature to read its value which is read with the help of an ADC getting a fraction of the zener diode voltage to feed microcontroller to output the value in LCD.

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4576 AUTO SELECTION OF ANY AVAILABLE PHASE, IN 3 PHASE SUPPLY SYSTEM

The project is to provide ac mains supply 230 volt to the single phase load if any of the phases, out of the 3 phases in a house goes missing.

4577 WIRELESS POWER TRANSFER

The project is to develop a system of wireless power transfer for pace makers battery charging (An electronic device implanted in body that works in place of a defective heart valve) .Otherwise the patient is required to be operated every year to replace the battery .

4578 GSM BASED ENERGY METER BILLING WITH LOAD CONTROL

The project is to develop a wireless energy meter reading and load control. The reading of the energy meter is also sent by to any cell phone by a message through GSM modem which also receives commands from the cell phone to control the electrical loads.

4579 ON BLDC MOTOR SPEED CONTROL USING FUZZY LOGIC CONTROL :

The Project consists of an input stage, a microcontroller processing stage, and an output stage. The input stage maps sensor to the appropriate membership functions and truth values, processing stage invokes them and the output stage results back into specific control output value.

4580 A PLD, (PROGRAMMABLE LOGIC DEVICE) BASED BLDC MOTOR OPERATION

The project uses a microcontroller and a EEPROM to store the logic configuration for operation of the motor which is driven by a motor driver IC. The input is set by a set of switches with display.

Documents

S&T Project List