New .NET project list for Computer science Students

1. Online Shopping website
2. School Management Software
3. N.G.O. Website
4. E-Commerce Website
5. Coaching Management Software
6. Inventory System
7. Medical Store Manager
8. Payroll System
9. Tours & Travels Website
10. Book Publication company Software
11. Online Music download Store
12. computer Store Management System
13. Job Portal
14. Library Management system
15. Online banking
16. Product Distributor Software
17. College Website
18. Dispensary Management System
19. Attendance Management System
20. Courier Management Service
21. E-Bazaar
22. Student Management System

PROJECT ON WIRELESS DATA AND VOICE COMMUNICATION THROUGH INFRARED-LED TITLE OF THE SYNOPSIS:- “Conceptual designs development & demonstrations of a

TITLE OF THE SYNOPSIS:-

“Conceptual designs development & demonstrations of a
WIRELESS DATA AND VOICE COMMUNICATION THROUGH INFRARED-LED”

OBJECTIVES:-

To Design a circuit of an electronic infrared communication system.
Develop new ideas to implement this circuit purposely.
To study the circuitry and different types of components & DTMF generator, DTMF decoder, op-amp and infrared-LED in the circuit.

INTRODUCTION

For years, infrared LED has been merely a system for piping light around corners and into the inaccessible places to allow the hidden to be lighted. But now, infrared LED has evolved into a system of significantly greater importance and use. Throughout the world, it is now being used to transmit voice, television and data signals as light waves. Its advantages as compared with conventional coaxial cable or twisted wire pairs are manifold. As a result, millions of dollars are being spent to put these light wave communication systems into operation.
One of the most interesting developments in recent years in the field of telecommunication is the use of laser light to carry information over large distances. It has been proved in the past decade that light wave transmission through laser light is superior than that achieved through wires and microwave links. Typically, infrared LED has a much lower transmission loss per unit length (0.15-5db/km) and is not susceptible to electromagnetic interference. Economically also, it serves our purpose. The ever increasing cost and the lack of space available in the congested metropolitan cities asks for advent of a less costly system.
The conventional telephonic systems use copper wires, which easily get oxidized and as such require high maintenance cost. The laser light being made of glass are non-reactive and hence economical. Also, the noise pick up by the copper wire or in electrical signals is quite substantial whereas in laser light, the noise pick up is negligible.

Basic elements of a infrared LED system

Applications
(i) Applications for video transmission include high quality video Trunked from studio Transfeter, Broadcast CATV video, Video Trunking within city or between cities, Baasedand Video for closed.

BLOCKDIAGRAM

block diagram not visible due to image format problems hope to remove this problem soon………..

CONSTRUCTION AND WORKING

MIKE: Its converts sound signals into electrical signals.

AMPLIFIER (A): Signals from mike are amplified so that it can drive to infrared-LED.

INFRARED-LED: It carries signals.

PHOTO TRANSISTOR: The electrical signals are regained from the optical signals.

AMPLIFIER (B): Energy of signals is amplified to drive the speaker.

SPEAKER: Electrical signals which are amplified are reconverted into sound signals at the speaker.

DTMF CODER: It is generates the DTMF signal corresponding to the number entered from the keyboard.

DTMF DECODER : It is fed to DTMF decoder which gives the binary output corresponding to the signal received from the transmitter.

DECODER DRIVER : To drive the 7 segment display.

The circuit

The main part of Circuit is an amplifier. This sound signals (even at a distance of 2 meters from the mic) are picked up by the condenser microphone and converted into electrical variation, which are amplified by the op-amp. (Operational amplifier) IC- 741 is use in the inverting mode with a single supply using divider network of resistor the gain of IC can be set be varying the feed back through R5/6 resistance (can place a 1M variable) here the output of IC is further amplified buy the push-pull amplifier using transistor BC.548/558 pair, in this circuit are R2 is feed back resistance with R1/8 and C1/3 to connected IC-741. The IC’s pin 2 is connect VR1 (variable resistance) through connect to O/P of T1 (transistor) also use 6volt DC. The microphone should be placed near the circuit with the shield wire to suppress tune. The output of the amplifier is taken from emitter of two transistors, with a filter C5 from speaker. Same process continues in the second amplifier.

CIRCUIT DESCRIPTION OF SWITCH SECTION

This project was based on photo diodes and photo transistor. Photo diodes had been used as a transmitter and photo transistor as a receiver. This project had been divided in two part, First part transmitter section and second part receiver section. Slide switch selected to voice communication and data.

TRANSMISSIONSECTION :When switch key is pressed, circuit is energised. The output of The transmit IR beams modulated at same frequency 1KHz. The receiver uses infrared module. The IR- signal form the transmitter is sensed by the receiver sensor.

RECEIVER SECTION:- This section is worked as a Flip-flop (Bistable). IC-3 is decade counter, its Pin No.14 is input and Pin No. 2 output. The output of frequency detector stage is used, via a flip-flop, to switch ‘ON’ or switch ‘OFF’ a LED alternately. The receiver uses infrared modules IR-signal from the transmitter is sensed by the sensor through and its output PIN 1 goes low and switched LED. IC-3 is worked on clock pulse which receives to infrared modules at Pin No. 14. Its output at Pin No 2 throughes high.
The output of IC-2 is also used for lighting LED-1 indicating presence of signal. When no signal is available output of sensor module goes high and transistor LED is switched ‘OFF’. When another signal arrives, LED is switched ‘ON’ and through clock pulse at Pin No. 14 of IC-3. This makes the LED to switch ‘ON’ the appliance at first pulse and ‘OFF’ the appliance at its Second pulse arrived at its sensor. Transmitter circuits works satisfactorily with 6-9V DC. Battery but receiver circuits needs 6V regulated supply. The CAMD CM8870/70C provides full DTMF receiver capability by integrating both the band-split filter and digital decoder functions into a single 18-pin DIP, SOIC,or 20-pin PLCC package. The CM8870/70C is manufactured using state-of-the-art CMOS process technology for low power consumption (35mW, MAX) and precise data handling. The filter section uses a switched capacitor technique for both high and low group filters and dial tone rejection. The CM8870/70C decoder uses digital counting techniques for the detection and decoding of all 16 DTMF tone pairs into a 4-bit code. This DTMF receiver minimizes external component count by providing an on-chip differential input amplifier, clock generator, and a latched three-state interface bus. The on-chip clock generator requires only a low cost TV crystal or ceramic resonator as an external component.
Notes:
1. dBm = decibels above or below a reference power
of 1mW into a 600. load.
2. Digit sequence consists of all 16 DTMF tones.
3. Tone duration = 40ms. Tone pause = 40ms.
4. Nominal DTMF frequencies are used.
5. Both tones in the composite signal have
an equal amplitude.
6. Bandwidth limited (0 to 3KHz) Gaussian Noise.
7. The precise dial tone frequencies are
(350Hz and 440Hz) ±2%.
8. For an error rate of better than 1 in 10,000
9. Referenced to lowest level frequency component
in DTMF signal.
10. Minimum signal acceptance level is measured with
specified maximum frequency deviation.
11. Input pins defined as IN+, IN–, and TOE.
12. External voltage source used to bias VREF.
13. This parameter also applies to a third tone injected onto
the power supply.
14. Referenced to Figure 1. Input DTMF tone level
at –28dBm.
COMPONENTS USED

RESISTANCE:
R1, 150W
R2,R11,R12 100kW
R3, R7 10KW
R4, R8 4.7kW
R5,R6,R9,R10 15KW
R13 220K W
R14 1KW
R15-R22 150W
VR-1,VR-2 1MW Variable Resistance

CAPACITOR:
C1,C2,C4,C5 0.1 mfd (104 pf)
C3 220 mfd
MIKE Condensor Microphone

SEMICONDUCTOR:
IC1- UM91215B (DTMF CODER)
IC2, IC-3 741 (OP AMP)
IC-4 CM8870 (DTMF DECODER)
IC-5 74LS47 (DECODER)
T1,T3 NPN BC548
T2,T4 PNP BC558
LED Light Emitting Diode
Pt. Photo Transistor

MISCELLANEOUS:
IC Base 8 Pin (2pcs.)
Speaker 8 ohms
Optical Fibre General purpose
PCB General purpose
Slide Switch DPDT
Battery 6 volt DC

CIRCUIT DAIGRAM

RECEIVER

AUTOMATION SECTION

BLOCKDIAGRAM

CONSTRUCTION AND WORKING

IR-LED: It carries signals and converted into optical signals.

PHOTO TRANSISTOR: The electrical signals are regained from the optical signals.

DTMF CODER: It is generates the DTMF signal corresponding to the number entered from the keyboard.

DTMF RECEIVER/DECODER : It is fed to DTMF decoder which gives the binary output corresponding to the signal received from the transmitter.

DEMULTIPLEXER/ 4-16 LINE DECODER: It takes the 4 line BCD input and selects respective output one among the 16 output lines. It is active low output and drives to relay.

RELAY DRIVER : Its section controls the relay. It has a Not Gate and four NPN transistors. NPN transistor is drive to relay which works as a switching. Relay controls the AC devices.

WORKING OF AUTOMATION CONTROL SECTION:
Signal Decoding Unit:
This is the main unit of this system. This unit consists of a DTMF to BCD decoder IC MT 8870, 4 to 16 line decoder IC 74154 and hex inverter gate IC 4049. The working of all the above IC’s are mentioned here before.
The DTMF to BCD decoder IC MT8870 takes a valid tone signal from the IR transmitter section. Then the tone signal is converted in to 4 bit BCD number output obtained at pins from 11 to 14. This output is fed to the 4-16 line decoder IC74154. This IC takes the BCD number and decodes. According to that BCD number it selects the active low output line from 1 to 16 which is decimal equivalent of the BCD number present at its input pins. Since the low output of this IC the output is inverted to get logic high output. This inversion is carried out by hex inverter IC 4049- built on TTL logic. This IC inverts the data on its input terminal and gives inverted output.
3. Device switching unit:
This unit consists of a tri state buffer and a D flip flop. After making confirmation of current status of the device to alter the status of that device, you have to change the mode of the tri state buffer by making the control input high. This is done by pressing the ‘#’ key. When this key is pressed the output of the 4-16 line decoder goes low The output of tri state buffer is latched by using a D flip-flop. Here this D flip flop is used in the toggle mode. For each positive going edge of the clock pulse will trigger the flip-flop.
After a period of 5 seconds the output of the IC 6 goes low and puts the tri state buffer in the high impedance state. Therefore to change the status of any other device is to be done after the output of IC 6 goes low, again ‘#’ key is pressed to make the tri state buffer act as input –output state and the respective code of the device is pressed.
4. Power supply unit:
For the proper working of this local control section except the local telephone set it needs a permanent back up which gives a 5V back up continuously. This is achieved by using a 5V regulated power supply from a voltage regulated IC 7805. This 5V source is connected to all ICs and relays. This IC gets a backup from a 9V battery.
5. Relay driver circuit:
To carry out the switching of any devices we commonly use the relays. Since the output of the D flip flop is normally +5V or it is the voltage of logic high state. So we cannot use this output to run the device or appliances. Therefore here we use relays, which can handle a high voltage of 230V or more, and a high current in the rate of 10Amps to energize the electromagnetic coil of the relays +5V is sufficient. Here we use the transistors to energize the relay coil. The output of the D flip-flop is applied to the base of the transistor T2 – T5 via a resister. When the base voltage of the transistor is above 0.7V the emitter-base (EB) junction of the transistor forward biased as a result transistor goes to saturation region it is nothing but the switching ON the transistor. This intern switches on the relay. By this the devices is switches ON. When the output of D flip-flop goes low the base voltage drops below 0.7V as a result the robotic devices also switches OFF.
CIRCUIT DESCRIPTION:
This system is divided into two sections, 1: Remote Section 2: automation Control Section.
REMOTE SECTION:
This unit consists of IR transmitter section, which is present in the remote place. The figure (E) shows the circuit diagram of the DTMF encoder, which resembles the DTMF transmitter section. It uses DTMF encoder integrated circuit, Chip UM 91214B. This IC produces DTMF signals. It contains four row frequencies & three column frequencies. The pins of IC 91214 B from 12 to 14 produces high frequency column group and pins from 15 to 18 produces the low frequency row group. By pressing any key in the keyboard corresponding DTMF signal is available in its output pin at pin no.7. For producing the appropriate signals it is necessary that a crystal oscillator of 3.58MHz is connected across its pins 3 & 4 so that it makes a part of its internal oscillator.

Figure (E). Circuit diagram of the DTMF encoder

This encoder IC requires a voltage of 3V. For that IC is wired around 4.5V battery. And 3V backup Vcc for this IC is supplied by using 3.2v zener diode.
The row and column frequency of this IC is as on the fig. “B”. By pressing the number 5 in the key pad the output tone is produced which is the resultant of addition of two frequencies, at pin no. 13 & pin no.16 of the IC and respective tone which represents number ‘5′ in key pad is produced at pin no.7 of the IC. This signal is sent to the DTMF transmitter section through IR-LED.
ROBOTIC ARM CONTROL SECTION:
This is a control unit through which you can control your devices. This contains one DTMF transmitter section and a devices Control Section. The devices to be controlled must be connected to phototransistor through control unit. Control unit is kept with a sufficient backup.
devices control Section consists of a DTMF decoder, 4-16 line decoder/demultiplexer, D-flip-flops, and relay driver circuits. Before going into detail of the circuit, we will take a brief description about integrated circuits used in local control section.
MT 8870 DTMF decoder:
IC MT8870/KT3170 serves as DTMF. This IC takes DTMF signal coming via telephone line and converts that signal into respective BCD number. It uses same oscillator frequency used in the remote section so same crystal oscillator with frequency of 3.85M Hz is used in this IC.
Working of IC MT8870:
The MT-8870 is a full DTMF Receiver that integrates both band split filter and decoder functions into a single 18-pin DIP. Its filter section uses switched capacitor technology for both the high and low group filters and for dial tone rejection. Its decoder uses digital counting techniques to detect and decode all 16 DTMF tone pairs into a 4-bit code. External component count is minimized by provision of an on-chip differential input amplifier, clock generator, and latched tri-state interface bus. Minimal external components required include a low-cost 3.579545 MHz crystal, a timing resistor, and a timing capacitor. The MT-8870-02 can also inhibit the decoding of fourth column digits.
MT-8870 operating functions include a band split filter that separates the high and low tones of the received pair, and a digital decoder that verifies both the frequency and duration of the received tones before passing the resulting 4-bit code to the output bus.
The low and high group tones are separated by applying the dual-tone signal to the inputs of two 6th order switched capacitor band pass filters with bandwidths that correspond to the bands enclosing the low and high group tones.

Figure (F).Block diagram of IC MT8870

The filter also incorporates notches at 350 and 440 Hz, providing excellent dial tone rejection. Each filter output is followed by a single-order switched capacitor section that smoothes the signals prior to limiting. Signal limiting is performed by high gain comparators provided with by stresses to prevent detection of unwanted low-level signals and noise. The MT-8870 decoder uses a digital counting technique to determine the frequencies of the limited tones and to verify that they correspond to standard DTMF frequencies. When the detector recognizes the simultaneous presence of two valid tones (known as signal condition), it raises the Early Steering flag (ESt). Any subsequent loss of signal condition will cause ESt to fall. Before a decoded tone pair is registered, the receiver checks for valid signal duration (referred to as character- recognition-condition). This check is performed by an external RC time constant driven by ESt. A short delay to allow the output latch to settle, the delayed steering output flag (StD) goes high, signaling that a received tone pair has been registered. The contents of the output latch are made available on the 4-bit output bus by raising the three state control input (OE) to logic high. Inhibit mode is enabled by a logic high input to pin 5 (INH). It inhibits the detection of 1633 Hz.
The output code will remain the same as the previous detected code. On the M- 8870 models, this pin is tied to ground (logic low).
The input arrangement of the MT-8870 provides a differential input operational amplifier as well as a bias source (VREF) to bias the inputs at mid-rail. Provision is made for connection of a feedback resistor to the op-amp output (GS) for gain adjustment.
The internal clock circuit is completed with the addition of a standard 3.579545 MHz crystal.
The input arrangement of the MT-8870 provides a differential input operational amplifier as well as a bias source (VREF) to bias the inputs at mid-rail. Provision is made for connection of a feedback resistor to the op-amp output (GS) for gain adjustment.
The internal clock circuit is completed with the addition of a standard 3.579545 MHz crystal.

74154 4-16 line decoder/demultiplexer:
IC 74154 is a 4-16 line decoder, it takes the 4 line BCD input and selects respective output one among the 16 output lines. It is active low output IC so when any output line is selected it is indicated by active low signal, rest of the output lines will remain active high. This 4-line-to-16-line decoder utilizes TTL circuitry to decode four binary-coded inputs into one of sixteen mutually exclusive outputs when both the strobe inputs, G1 and G2, are low. The demultiplexing function is performed by using the 4 input lines to address the output line, passing data from one of the strobe inputs with the other strobe input low. When either strobe input is high, all outputs are high. These demultiplexer are ideally suited for implementing high-performance memory decoders.

Figure G. IC 74154 4-16 line decoder
All inputs are buffered and input clamping diodes are provided to minimize transmission-line effects and thereby simplify system design.
TRUTH TABLE:

IC 4013 D-flip-flop:
IC 4013 is a conventional D-flip-flop IC. This IC consists of two D flip-flops. These flip-flops are used to latch the data that present at its input terminal. Each flip-flop has one data, one clock, one clear, one preset input terminals.

(Above figure shows a single D-flip-flop)

Relay driver circuit:
To carry out the switching of devices we commonly use the relays. Since the output of the D flip flop is normally +5V or it is the voltage of logic high state. So we cannot use this output to run the device or appliances. Therefore here we use relays, which can handle a high voltage of 230V or more, and a high current in the rate of 10Amps to energize the electromagnetic coil of the relays +5V is sufficient. Here we use the transistors to energize the relay coil. The output of the D flip-flop is applied to the base of the transistor T2 – T5 via a resister. When the base voltage of the transistor is above 0.7V the emitter-base (EB) junction of the transistor forward biased as a result transistor goes to saturation region it is nothing but the switching ON the transistor. This intern switches on the relay. By this the device is switches ON. When the output of D flip-flop goes low the base voltage drops below 0.7V as a result the device also switches OFF.
Power supply unit:
NEED OF POWER SUPPLY:-
Perhaps all of you are aware that a power supply is a primary requirement for the test bench of a home experimenter’s mini lab. A battery eliminator can eliminate or replace the batteries of solid-state electronic equipment and 220V A.C. mains instead of the batteries or dry cells thus can operate the equipment. Nowadays, the sued of commercial battery eliminator or power supply unit have become increasingly popular as power source for household appliances like transceiver, record player, clock etc.
Summary of power supply circuit features:-
Brief description of operation: gives out well regulated +8V output, output current capability of 500mA.
Circuit protection: Built –in overheating protection shuts down output when regulator IC gets too hot.
Circuit complexity: simple and easy to build.
Circuit performance: Stable +8V output voltage, reliable Operation.
Availability of components: Easy to get, uses only common basic components.
Design testing: Based on datasheet example circuit, I have used this circuit successfully as part of other electronics projects.
Applications: part of electronics devices, small laboratory power supply.
Power supply voltage: unregulated 8-18V-power supply.
Power supply current: needed output current 500 mA.

Components cost: Few rupees for the electronic components plus the cost of input transformer.

Pin Diagram of 7808 Regulator IC
Pin 1: Unregulated voltage input
Pin 2: Ground
Pin3: Regulated voltage output

Component list

7808 regulator IC
2. 0-12 transformer
3. 1000uf and 100uf. Capacitor, at least 25V voltage rating.
DESCRITION OF POWER SUPPLY

This circuit is a small + 8 volts power supply. Which is useful when experimenting with digital electronics. Small inexpensive battery with variable output voltage are available, but usually their voltage regulation is very poor, which makes them not very usable for digital circuit experimenter unless a better regulation can be achieved in some way. The following circuit is the answer to the problem.
This circuit can give +8V output at about 500mA current. The circuit has overload and terminal protection.

CIRCUIT DIAGRAM OF POWER SUPPLY
The above circuit utilizes the voltage regulator IC 7808 and 7805 for the constant power supply. The capacitors must have enough high voltage rating to safely handle the input voltage feed to circuit. The circuit is very easy to build for example into a piece of Zero board.
For the proper working of this local control section except the mobile phone or local telephone set it needs a permanent back up which gives a 8V back up continuously. This is achieved by using a 8V regulated power supply from a voltage regulated IC 7808. This 5V source is connected to all ICs and relays. This IC gets a backup from a 9V battery.

Fig J. Circuit Diagram of Local Control Section.
USED COMPONENTS

SEMICONDUCTORS
(1) IC-1 ……… 7808
(2) IC-2…………. CM8870P
(3) IC-3…………. 74154
(4) IC-5-6………CD 4013
(5) IC-4……….. 4049
(6) IC7 ………… UM 91214B
(7) D1-D2 ………….IN 4007
(8) D3…………… 3V Zener
(9) LED ……………. Light Eammiting Diode
(10) T1-T6…………..(NPN) 368
(11) Crystal ………… 3.57 Mhz.
(12) Photodiode
(13) Phototransistor

RESISTOR
(1) R1……….330K OHm.
(2) R2……….. 100K OHm.
(3) R3,R4,R7 ………. 10K OHm.
(4) R5,R6, ………. 1K OHm.
(5) R8-R12…. 100 OHm.

CAPACITOR
(1) C1…………. 1000MFD.
(2) C2,C3…………. 0.1 MFD.

MISCELLANEOUS
(1) RELAY ………………. 6V \100 0Hm.
(2) TRANSFORMER…… 0-9 (Step down)

Latest iee eee projects eg- Improving mains current quality for three phase three-switch buck-type PWM rectifiers Analysis and Design

iee eee projects

1. Improving mains current quality for three phase three-switch buck-type PWM rectifiers – 2009
2. Analysis and Design of Three-Phase Rectifier with Near-Sinusoidal Input Currents - 2009
3. Single-Phase Matrix Converter Operating as Buck and Boost Rectifier - 2009
4. Single-Phase Z-Source Buck-Boost Matrix Converter - 2009
5. A Single-Stage Single-Phase Transformer-Less Doubly Grounded Grid-Connected PV Interface - 2009
6. Hybrid Modeling and Simulation for the Boost Converter in Photovoltaic System - 2009
7. Design and Control for Grid-connected Photovoltaic Inverter with LCL Filter - 2009
8. Quasi-Z-Source Inverter for Photovoltaic Power Generation Systems - 2009
9. Power Injection System for Photovoltaic Generation Plants with Active Filtering Capability - 2009
10. The Electronic Ballast Using Class-E Rectifier with Tapped Inductor for Power Factor Correction - 2008
11. A Novel Reference Compensation Current Strategy for Three-phase Three-level Unity PF Rectifier - 2009
12. Single-Stage Soft-Switching Converter With Boost Type of Active Clamp for Wide Input Voltage Ranges - 2009
13. Transformer less DC–DC Converters With High Step-Up Voltage Gain used for photovoltaic interface Application - 2009
14. A Zero-Voltage-Switching Bidirectional DC–DC Converter With State Analysis and Soft- Switching-Oriented Design Consideration - 2009
15. Soft-Switching Capability Analysis of a Dual Active Bridge Dc-Dc Converter - 2009
16. Comparison of Control Methods for High-Voltage High-Power Three-Level Half-Bridge DC/DC Converters - 2009
17. Design of High Voltage, High Power and High Frequency Transformer in LCC Resonant Converter – 2009
18. LCC Resonant Converter Operating under Discontinuous Resonant Current Mode in High Voltage, High Power and High Frequency Applications - 2009
19. Design of LCL-T Resonant Converter Including the Effect of Transformer Winding Capacitance – 2009
20. A Non-isolated Bidirectional ZVS-PWM Active Clamped DC–DC Converter - 2009
21. Analysis and implementation of Single-Switch Quasi-Resonant Converter - 2009
22. Loss Analysis in Soft Switching Boost Converter using a single switch - 2009
23. A Novel Soft Switching Flyback Converter with Synchronous Rectification - 2009 Zero-Current-Transition Bridgeless PFC Without Extra Voltage and Current Stress - 2009
24. An Efficient Common-Mode Hybrid EMI Filter Used in Switch-mode Power Supply - 2009
25. Active-Clamp ZVS Converter with Step-Up Voltage Conversion Ratio - 2009 Passive and Active Hybrid Integrated EMI Filters - 2009
26. Modeling and design of a neutral point regulator for a three level diode clamped rectifier - 2009
27. A novel three-phase PFC rectifier using a harmonic current injection method - 2009
28. Single-Stage Fly back Converter for Constant Current Output LED Driver with Power Factor Correction - 2009
29. A Modified SEPIC Converter for High Power Factor Rectifier and Universal-Input Voltage Applications - 2009
30. A Compensation Technique for Smooth Transitions in Non-inverting Buck-Boost Converter - 2009
31. A Novel Hybrid Operational Mode Wide Range Input ZVS Front-end Dc-Dc Converter Aiming at Optimized Overall Performance - 2009
32. A Novel Low-Loss Modulation Strategy for High-Power Bidirectional Buck + Boost Converters - 2009
33. A Novel ZVZCS LLC-Type Parallel Resonant Converter with A Separated Resonant Tank - 2009
34. An Interleaved Boost Converter With Zero-Voltage Transition - 2009
35. Analysis and implementation of Switched-capacitorized DC/DC Converters - 2009
36. Analysis of Super-Lift Luo-Converters with Capacitor Voltage drop - 2009
37. Compensation Loop Design of A Photovoltaic System Based on Constant Voltage MPPT - 2009
38. Design and Comparison of Two Front-end DC/DC Converters: LLC Resonant Converter and Soft-switched Phase-shifted Full-bridge Converter with Primary-side Energy Storage Inductor - 2009
39. Design Oriented Analysis of Modern Active Droop Controlled Power Supplies - 2009
40. Distributed Z-Source Network DC-DC Converter - 2009
41. High-efficiency module-integrated photovoltaic power conditioning system - 2009
42. Light-Load Efficiency Improvement for Buck Voltage Regulators - 2009
43. Single-Stage Offline SEPIC Converter with Power Factor Correction to Drive High Brightness LEDs - 2009
44. Single-Stage Single-Switch Switched-Capacitor Buck/Buck-Boost-Type Converter - 2009
45. Stability analysis of two-cell buck converter driven DC motor with a Discrete-Time closed Loop - 2009
46. Three-Switch Active-Clamp Forward Converter with Low Switch Voltage Stress - 2009
47. Topology and analysis of Voltage-lift-type Cuk converters: - 2009
48. CAN based Synchronized Motion Control for Induction Motors – 2009 Novel Nine-Switch PWM Rectifier-Inverter Topology for Three-Phase UPS Applications – 2009
49. A Simple Control Scheme for Single-Phase Shunt Active Power with Fuzzy Logic based DC Bus Voltage Controller – 2009
50. Space Vector Pulse Width Modulation based Speed Control of Induction Motor using Fuzzy PI Controller – 2009
51. Energy Efficient Control of Three-Phase Induction Motor – A Review – 2009
52. Speed-Sensorless, Adjustable-Speed Induction Motor Drive based on Dc Link Measurement – 2009
53. A Bridgeless PFC Boost Rectifier with Optimized Magnetic Utilization – 2009
54. A Review of Non-Isolated High Step-Up DC/DC Converters in Renewable Energy Applications – 2009
55. An Interleaved Twin-Buck Converter with Zero-Voltage-Transition - 2009
56. Analysis and design of a current-fed zero-voltage-switching and zero-current-switching CL-resonant push–pull dc–dc converter - 2009
57. Analysis and implementation of An Efficient ActiveL C Snubber for Forward Converters - 2009
58. Analysis and implementation of positive output super lift converter techniques - 2009
59. Digital Control of Resonant Converters: Enhancing Frequency Resolution by Dithering – 2009
60. Semi-Digital Interleaved PFC Control with Optimized Light Load Efficiency – 2009
61. Control and Protection of Power Electronics Interfaced Distributed Generation Systems in a Customer-Driven Microgrid – 2009
62. Research on Measuring Equipment of Single-phase Electricity-Stealing with Long- distance Monitoring Function – 2009
63. Development of Energy Management and Warning System for Resident: An Energy Saving Solution – 2009
64. Sufficient Sunlight Supply for Home Care using Local Closed-loop Shutter Control System – 2009
65. Home Appliance Energy Monitoring and Controlling based on Power Line Communication - 2009
66. Comprehensive Approach to Modeling and Simulation of Photovoltaic Arrays - 2009
67. A Novel Zero Voltage Transition Synchronous Buck Converter for Portable Application – 2008
68. Detection and Recognition of End-of-Speed-Limit and Supplementary Signs for Improved European Speed Limit Support – 2008
69. \Soft Switched AC-Link AC/AC and AC/DC Buck-Boost Converter – 2008
70. Improving Speed Control of Induction Motors through Fuzzy-SMC-PI Control – 2008
71. A Fuzzy Logic Controlled Sliding Mode Control (SMC) of Inverter in Shunt Active Power Filter for Power Quality Improvement – 2008
72. Design of an Intelligent Bi-Directional DC-DC Converter with Half Bridge Topology – 2008
73. Direct Torque Neuro Fuzzy Speed Control of an Induction Machine Drive based on a New Variable Gain PI Controller – 2008
74. Embedded Controlled Z Source Inverter Fed Induction Motor Drive – 2008
75. Multi-Input Fuzzy Logic Controller for Brushless DC Motor Drives – 2008
76. Smart Configurable Wireless Sensors and Actuators for Industrial Monitoring and Control – 2008
77. Design and Implementation of PLC-based Monitoring Control System for Three-Phase Induction Motors Fed by PWM Inverter – 2008
78. A Distributed Measurement System to Estimate Plant Water Content in Agricultural Fields based on Wireless Sensor Networks – 2008
79. Operational Analysis and Comparative Evaluation of Embedded Z-Source Inverters – 2008
80. AI base Design of a Fuzzy Logic Scheme for Speed Control of Induction Motors using SVPWM Technique – IEEE 2009
81. CAN-based Synchronized Motion Control for Induction Motors – IEEE 2009
82. Fuzzy Multi-State Allocation of the Diesel Engine Fuel Supply System – IEEE 2009
83. A Fuzzy Logic based Supervisory Hierarchical Control Scheme for Real Time Pressure Control – IEEE 2009
84. A Fuzzy Logic Controlled Sliding Mode Control (SMC) of Inverter in Shunt Active Power Filter for Power Quality Improvement – IEEE 2008
85. A Novel Zero Voltage Transition Synchronous Buck Converter for Portable Application – IEEE 2008
86. Design of an Intelligent Bi-Directional Dc-Dc Converter with Half Bridge Topology – IEEE 2008
87. Direct Torque Neuro Fuzzy Speed Control of an Induction Machine Drive based on a New Variable Gain PI Controller – IEEE 2008
88. Embedded Controlled Z-Source Inverter Induction Motor Drive – IEEE 2008
89. Improving Speed Control of Inductions through Fuzzy-SMC-PI Control – IEEE 2008
90. Multi-Input Fuzzy Logic Controller for Brush less DC Motor Drives – IEEE 2008
91. A New Simplified Multilevel Inverter Topology for DC-AC Conversion Boost DC-AC Inverter: A New Control Strategy Data Acquisition System for Large Electrical Drive Distribution & Electrical Substation System & Automation-SCADA Electrical Network Automation & Communication Systems Energy Saver for Auditoriums

Latest Electronics Projects list 1. INTELLIGENT LINE FOLLOWER ROBOT FOR INDUSTRIES 2. DTMF SYSTEM TO CONTROL INDUSTRIAL MACHINES (DSCIM) 3. VEHICLE AN

1. INTELLIGENT LINE FOLLOWER ROBOT FOR INDUSTRIES
2. DTMF SYSTEM TO CONTROL INDUSTRIAL MACHINES (DSCIM)
3. VEHICLE ANTICOLLITION SYSTEM For Automobiles
4. MesoScaled Aerial Robot
5. KEYLESS INOFORMATION ENTRY
6. RF BASED CAR CONTROLING AND TRACKING SYSTEM
7. Electronic Hire Meter for Automobile.
8. Solar Tracking.
9. Railway Track Parameter Measurment.
10. Unmanned Railway Crossing.
11. Intelligent Petrol Bunk.
12. GSM Based Wildlife monitoring System
13. Vehicle Speed Controlling system
14. SOLAR ENERGY BASED INTELLIGENT TRAIN
15. A Model ECU for Nano Car
16. RF-ID based Hospital Automation System
17. Wireless Controled Green House Automation
18. Intelligent Speed Breaker
19. Home Security System.
20. Controller based bank token display.
21. Lift control System.
22. Production Line Monitoring System.
23. Fingerprint based vehicle security System.
24. Virtual Arm
25. Under Water Vehicle
26. Heart Beat Monitoring System.
27. Patient Monitoring System.

LAtest ECE Projects topics 1.GSM Based Intelligent Train. 2.The Gastrointestinal Tract. 3.Child monitoring using RF. 4.MesoScaled Aerial Robot. 5.Arti

1.GSM Based Intelligent Train.
2.The Gastrointestinal Tract.
3.Child monitoring using RF.
4.MesoScaled Aerial Robot.
5.Article tracking system .
6.GSM based data monitoring system.
7.Remote Temperature Monitoring through GSM.
8.Intelligent TAXI metering.
9.Mine Security System with wireless connectivity.
10.Aquarium Automation.
11.Railway Coach Automation.
12.Bus Stop Monitoring System.
13.Electronic Objective Test System.
14.Reflex Action Measurment.
15.Path Tracking Robot.
16.Electronic Inventory Control
16.Remote Sales Terminal.
17.Remote Irrigation control and monitoring
18.Weather monitoring using GSM for hazardous areas.
19.Water reservoir monitoring and PUMP station control
20.Wild life monitoring and location indicators for visitors
21.INTELLIGENT LINE FOLLOWER ROBOT FOR INDUSTRIES
22.DTMF SYSTEM TO CONTROL INDUSTRIAL MACHINES (DSCIM)
23.VEHICLE ANTICOLLITION SYSTEM For Automobiles
24.MesoScaled Aerial Robot
25.KEYLESS INOFORMATION ENTRY
26.RF BASED CAR CONTROLING AND TRACKING SYSTEM
27.Electronic Hire Meter for Automobile.
28.Solar Tracking.
29.Railway Track Parameter Measurment.
30.Unmanned Railway Crossing.
31.Unmanned Petrol Pump.
32.GSM Based Wildlife monitoring System
33.Vehicle Speed Controlling system
34.SOLAR ENERGY BASED INTELLIGENT TRAIN
35.A Model ECU for Nano Car
36.RF-ID based Hospital Automation System
37.Wireless Controled Green House Automation
38.Intelligent Speed Breaker
39. Home Security System.
40. Controller based bank token display.
41. Lift control System.
42. Production Line Monitoring System.
43. Fingerprint based Door latch.
44. Fingerprint based attendance system.
45. Fingerprint based vehicle security System.
46. Fingerprint based home security system.
47. Hotel Power Managment.
48. Virtual Arm
49. Under Water Vehicle
50. Wireless Robotic Crane.
51. Heart Beat Monitoring System.
52. Person Tracker.
53. Patient Monitoring System.

Latest EEE Projects topics 1.Pre-Paid Energy Meter. 2.Electricity Distribution System. 3.Energy Saver.Intelligent Street Lighting System. (Detects tra

1.Pre-Paid Energy Meter.
2.Electricity Distribution System.
3.Energy Saver.Intelligent Street Lighting System. (Detects traffic & turns ON lights)
4.Intelligent Street Lighting System. (All lights connected to central PC)
5.PC based room lighting control.
6.Wireless room lighting control.
7.Intelligent Switchboard.
8.Intelligent Room lighting. (Counts if person in room & turns ON light)
9.Maximum Demand Controller.
10.Power monitoring & logging System.
11. Railway Coach Automation.
12. Bus Stop Monitoring System.
13. Electronic Objective Test System.
14. Reflex Action Measurment.
15. Path Tracking Robot.
16. Electronic Inventory Control
16. Remote Sales Terminal.
17. Remote Irrigation control and monitoring
18. Weather monitoring using GSM for hazardous areas.
19. Water reservoir monitoring and PUMP station control
20. Wild life monitoring and location indicators for visitors
21. Hotel Power Managment.
22. Wireless Robotic Crane.
23. Aquarium Automation.

Latest Bio-Medical Projectstopics 1.Patient monitoring system (upto four parameter) 2.Ultrasound as a Biochemical diganostic tool 3.Anesthesia Machine

1.Patient monitoring system (upto four parameter)
2.Ultrasound as a Biochemical diganostic tool
3.Anesthesia Machine Model With AEP Simulator
4.Neuropatic Foot Exerciser
5.Digital pulmonary function test using Microcontroller(DPFT)
6.Human Skin Colour Sensor
7.Safe gaurd for blind
8.Artificial Kidney
9.Role of Biomedical in a Hospital
10.Monitoring system for premature babies
11.EEG Biofeedback and Stress Management
12.Snore Alarm Electronic Device
13.Tan Timer: Six Timing positions suited to different skin types Timing affected by sunlight intensity
14.Highway Hospital Connecting System
15.Plaque Identification using
16.Total Quality Management in Healthcare
17.Aid Suit
18.Microcontroller based temperature recorder and controlling system
19.I-Ball movement Detector
20.Neuro-muscular stimulator
21.Wirelesh telemetry system for the transmission of ECG signals
22.Speaker and speech recognition
23.Dual Parameter Monitoring Continuous Passive Movement machine
24.X-Ray C-Arm Drive and Control for Imaging
Blood Line 25.Braille watch
26.Pulse oximeter

Latest Mechanical Projects topics 1.Angle Measurement Apparatus Improvement 2.Development Of A Tool Measurement System 3.The Development and Construct

1.Angle Measurement Apparatus Improvement
2.Development Of A Tool Measurement System
3.The Development and Construction Of A Tele-operated Anthropomorphic Robotic Hand With Force Feedback
4.Laser Material Deposition On Prehardened Steel
5.Development Of A New Autonomous Guided Vehicle Platform
6.Improvement of Fatigue Properties by Surface Engineering
7.Supporting Software For EMAS For Manufacturing Sector
8.Biodigester
9.Laser Interferometer Application: Gauge Block Comparator 10.Modelling the Aerodynamics of a Horizontal-Axis Wind Turbine Using A Tip And Root Helical Vortex Model
11.Evaluation of a Mecanum Wheel-Based Mobile Robotic Platform
12.Design of a Towfish
13.Solar Heat Cooling
14.Testing Of Membranes With A Flat Sheet Membrane Test Rig
15.Laser Interferometer Applications: CNC Testing
16.FMEA Software Including LCA Considerations Of A Product
17.An Investigation On The Heat Transfer Of Two Phase Flow In Coiled Pipes
18.A study On Boiling Process
19.Design For An Automated Flexible Part Transfer System
20.Free-Piston Engine
21.Camshaft Tuning Of A Restricted Formula SAE � Engine Through Engine Simulation Software
22.A web-based collaborative Learning Environment In Engineering Design Education
23.Enhancing The Retaining Capacity Of Abrasive Particles In The AFM
24.Design of a Universal Cosmetic Case Lacquering Fixture
25.Development Of A Haptic Glove For Teleoperation
26.Laser Material Deposition Of Ceramic Reinforced Steel
27.Enhancement of the Actuation and Sensing Capabilities of the IAL Dexterous Robot Finger
28.3D Design Data for Customised Hearing Aids
29.Measurement And Analysis Of The Pressure Distribution Around A Model Wind Turbine Operating In A Wind Tunnel Closed Test-Section
30.Study On The Possible Use Of Waste Rubber For Cooling Purposes
31.ADI As A Material For Gears
32.Vertebra Solid Model via 3D Scan
33.Engine Breathing
34.Solar Space Heating Of An Office Using Flat Plate Collectors
35.Setting Up Of Carburizing Facility
36.A Study On The Buckling Phenomenon
37.Improving the Performance of An Air Curtain Inside A Freezer
38.Manufacturing System Evaluation And Improvements Definition
39.Computerized Equipment Maintenance Management
40.Analysis Of The Tribological Behaviour Of AISI O1 And AISI D2 Tool Steels
41.A Methodology For Analysing The Energy Efficiency of Buildings (Using The Administrative Wasteserv Building As a Test Case)
42.The Design And Construction Of A Scratch Testing Head For a Tribotester
43.Testing Standard For Degradable Plastics
44.Investigating The Effect Of Alloying Elements In Zinc Bath On The Physical Properties Of Galvanizing Coats
45.The Construction Of A Pneumatic Comparator
46.Disassembly of Electronic waste

latest Microcontroller Based Projects list

Three phase Induction motor Control Using Microcontroller

* Multi Task Industrial Timer Using Microcontroller* Multi Task Industrial Timer Using Microcontroller
* Digital Clock Using AT89C2051 Microcontroller
* Laser Based Automatic Visitor Counter cum Room Light Controller
* Biomedical Data Transmission Using Wireless Network
* Digital Clock Using AT89C51 Microcontroller
* Industrial Automation using computer’s parallel port (Visual Basic)
* Digital Day And Date Display Using Microcontroller
* Digital Countdown Timer Using Microcontroller
* Digital 74 Series IC Tester
* Digital Visitor Counter Using Microcontroller
* DS1620 Based Temperature Controller Using Microcontroller
* DS1820 Based High Precision Temperature Indicator Using Microcontroller
* Electronic Voting Machine Using Microcontroller
* Electronics Components Tester Using Microcontroller
* Biometric Security System (Finger Print Based)
* Ultrasonic Distance Meter using microcontroller
* Mobile Controlled Robot Machine
* Telephone Controlled Device Switching Using Microcontroller
* Infrared Interrupt counters Using Microcontroller
* 6 Line and one fan Infrared Remote Switch Using Microcontroller
* Infrared Remote Switch Using Microcontroller
* Interactive Voice Response System (IVRS)
* Line Following Robot Using Microcontroller
* Microcontroller Based Telephone Caller ID
* Microcontroller Based Digital Clock with Alarm
* Password Based Digital code Lock Using Microcontroller
* Multi function Running Lights Using Microcontroller
* Parallel Telephone instrument with secured privacy Using Microcontroller
* Computer to microcontroller communication (Wireless) Using Microcontroller
* PC BASED DATA LOGGER Using Microcontroller and Visual Basic
* Computer Based Digital IC Tester
* GPS
* PC Controlled Robot Machine
* Control Ur PC by remote Control
* Simcard Based Prepaid Energy Meter Using Microcontroller
* Industrial Automation and message transmission using internet
* Digital Clock with Remote controlled time settings Using Microcontroller
* Electric Energy Meter Reading Through Wireless
* Wireless Controlled Robot Machine
* RFID Based Attendance System
* RFID Based Security System
* Data Transmission Through wireless network
* Sending SMS To Landline Telephone Using Microcontroller
* Wireless Data Communication (AT89S52)
* Efficient Solar Energy generation using movable solar panel
* Motor controller using Telephone
* Industrial control using Telephone
* Temperature controlled Colling Fan Using Microcontroller
* Time Operated Electrical Appliances Controlling System
* Traffic signal Controller Using Microcontroller
* Two Line Intercom Using Microcontroller
* Microcontroller-based LED Light Chaser
* Microcontroller-based Temperature Indicator
* PC-based Wireless Stepper Motor Control
* Microcontroller-based Ring Tone Player
* Solar LED Lighting System
* Clap-operated Appliance Control
* Microcontroller-based Speedometer-Cum-Odometer
* PC-Based Mobile Robot for Navigation
* Solar Electric Fence
* Four-Channel Analogue-to-Digital Converter
* Microcontroller-based Temperature Meter
* Kapalbhati Pranayama Timer
* Microcontroller-Based Inductance Meter
* Cellphone-Operated Land Rover
* Presentable Timer Using Secret-Coded Punched Card
* Rank Display System for Race and Quiz Competitions
* Remote-Controlled Toy Boat
* Microcontroller-Based Heart-Rate Meter
* Multiple Devices Switching Through Parallel Port
* Microcontroller-Based Capacitance Meter
* Token Number Display
* Microcontroller-Based DC Motor Speed Controller
* MICROCONTROLLER-BASED TEMPERATURE INDICATOR
* Buzzer Controller for 8-Team Quiz Contests
* Microcontroller-based Ultrasonic Distance Meter
* Microcontroller-based Tachometer
* Temperature Indicator-cum-Controller
* Microcontroller-Based Alarm Clock

* Simple PC-Based Digital Sound-Level Meter
* Low-Cost Versatile Timer Using AT89C2051
* Parallel-Port Interfacing and Programming Aid
* Digital Heart-Beat Counter
* Secured Room Access System
* Digital Voltmeter
* Microcontroller-based Graphics Display
* Microcontroller-based Industrial Timer
* Standalone Digital Clock
* PC-based Dual DC Motor Controller
* Wireless Messaging Via Mobile/Landline Phone
* Microcontroller-based Infrared Tracking Robot
* Remote-Controlled Real-Time Clock with Device Controller
* Auto Controller for Petrol-Run Power Generator
* Design Your Own Infrared Remote
* PIC16F84-based Digital Thermometer
* Water-level Controller-cum-motor Protector
* Digital Phase Selector
* Microcontroller-based Bidirectional Visitor Counter
* Microcontroller-based Automatic Flush System
* Two-Channel PC-based Oscilloscope
* Quiz Buzzer
* Stepper Motor Controller Using AT89C51
* Beverage Vending Machine Controller
* Digital Thermometer-cum-Controller
* Digital Weight Accumulator
* Remotely Programmable RTC-Interfaced Microcontroller for Multiple Device Control
* Auto Switch for TV
* Microcontroller-based Code Lock
* Microcontroller-based Triggering Circuit for SCR Phase Control
* Parallel-Port Testing and Programming Aid
* Fastest-Finger-First Using Microcontroller
* Remote-Controlled Land Rover—A DIY Robotic Project
* 3D Surround Sound System
* AVR Microcontroller-Based Clock
* Automatic Rain Timer
* Power Factor Correction
* AT89C2051-Based Countdown Timer
* PC-Based Remote-Controlled Stepper Motor
* Low-Cost LCD Frequency Meter
* PC-Based Transistor-Lead Identifier
* A Simple Directional Detector/Counter
* Using AVR Microcontroller for Projects—Part 3 of 3
* Speed Checker for Highways (2005)
* Using AVR Microcontroller for Projects—Part 2 of 3
* Automatic 3-Phase Induction Motor Starter
* Using AVR Microcontrollers for Projects—Part 1 of 3
* Noise-Muting FM Receiver
* Digital Stopwatch
* Remote-Controlled Stepper Motor
* Computerized Electrical Equipment Control
* Manual AT89C51 Programmer
* Medium-Power Low-Cost Inverter
* Programmable Timer Based on AT90S4433 AVR
* Low-Cost Energy Meter Using ADE7757
* Two-Wheeler Security System
* Auto Changeover to Generator on Mains Failure—Part II
* PC-based Scrolling Message Display
* Auto Changeover to Generator on Mains Failure—Part I
* Device Control through PC’s Parallel Port Using Visual Basic
* Remote-Controlled Digital Audio Processor
* Microcontroller-based Real-time Clock
* Standalone Scrolling Display Using AT90S8515 AVR
* Moving Message Over Dot-Matrix Display(2004)
* Ultrasonic Lamp-Brightness Controller
* Digital Combination Lock
* Safety Guard for the Blind
* Microprocessor-Based Home Security System
* Stepper Motor Control Using 89C51 Microcontroller
* Dynamic Temperature Indicator and Controller
* Voice Recording and Playback Using APR9600 Chip
* Load Protector with Remote Switching Facility
* PIC16F84-Based Coded Device Switching System
* Remote-Controlled Sophisticated Electronic Code Lock
* Temperature Indicator Using AT89C52
* Device Switching Using Password
* Laser-Based Communication Link
* Programmer for 89C51/89C52/89C2051 Microcontrollers
* A Bidirectional Visitors Counter
* Digital Clock Using Discrete ICs
* Lift Overload Prevented
* Sound-Operated On/Off Switch
* Digital Water-Level Indicator Cum Pump Controller
* PC-Based Data Logger
* Automatic Water-Level Controller
* Microcontroller-Based Call Indicator
* Controlling a 7-Segment Display Using PC’s Parallel Port(2003)
* Economical UPS for Cordless Phones
* Binary-To-Hexadecimal Decoder
* Proportional Load Control Using PC
* Multifactor Emergency Light
* Fluid Level with Indicator
* Microcontroller-Based School Timer
* Telephone Remote Control
* Auto-Control for 3-Phase Motors
* Programmable Melody Generator -Part II

Latest Microcontroller Based Projects list

Three phase Induction motor Control Using Microcontroller

* Multi Task Industrial Timer Using Microcontroller* Multi Task Industrial Timer Using Microcontroller
* Digital Clock Using AT89C2051 Microcontroller
* Laser Based Automatic Visitor Counter cum Room Light Controller
* Biomedical Data Transmission Using Wireless Network
* Digital Clock Using AT89C51 Microcontroller
* Industrial Automation using computer’s parallel port (Visual Basic)
* Digital Day And Date Display Using Microcontroller
* Digital Countdown Timer Using Microcontroller
* Digital 74 Series IC Tester
* Digital Visitor Counter Using Microcontroller
* DS1620 Based Temperature Controller Using Microcontroller
* DS1820 Based High Precision Temperature Indicator Using Microcontroller
* Electronic Voting Machine Using Microcontroller
* Electronics Components Tester Using Microcontroller
* Biometric Security System (Finger Print Based)
* Ultrasonic Distance Meter using microcontroller
* Mobile Controlled Robot Machine
* Telephone Controlled Device Switching Using Microcontroller
* Infrared Interrupt counters Using Microcontroller
* 6 Line and one fan Infrared Remote Switch Using Microcontroller
* Infrared Remote Switch Using Microcontroller
* Interactive Voice Response System (IVRS)
* Line Following Robot Using Microcontroller
* Microcontroller Based Telephone Caller ID
* Microcontroller Based Digital Clock with Alarm
* Password Based Digital code Lock Using Microcontroller
* Multi function Running Lights Using Microcontroller
* Parallel Telephone instrument with secured privacy Using Microcontroller
* Computer to microcontroller communication (Wireless) Using Microcontroller
* PC BASED DATA LOGGER Using Microcontroller and Visual Basic
* Computer Based Digital IC Tester
* GPS
* PC Controlled Robot Machine
* Control Ur PC by remote Control
* Simcard Based Prepaid Energy Meter Using Microcontroller
* Industrial Automation and message transmission using internet
* Digital Clock with Remote controlled time settings Using Microcontroller
* Electric Energy Meter Reading Through Wireless
* Wireless Controlled Robot Machine
* RFID Based Attendance System
* RFID Based Security System
* Data Transmission Through wireless network
* Sending SMS To Landline Telephone Using Microcontroller
* Wireless Data Communication (AT89S52)
* Efficient Solar Energy generation using movable solar panel
* Motor controller using Telephone
* Industrial control using Telephone
* Temperature controlled Colling Fan Using Microcontroller
* Time Operated Electrical Appliances Controlling System
* Traffic signal Controller Using Microcontroller
* Two Line Intercom Using Microcontroller
* Microcontroller-based LED Light Chaser
* Microcontroller-based Temperature Indicator
* PC-based Wireless Stepper Motor Control
* Microcontroller-based Ring Tone Player
* Solar LED Lighting System
* Clap-operated Appliance Control
* Microcontroller-based Speedometer-Cum-Odometer
* PC-Based Mobile Robot for Navigation
* Solar Electric Fence
* Four-Channel Analogue-to-Digital Converter
* Microcontroller-based Temperature Meter
* Kapalbhati Pranayama Timer
* Microcontroller-Based Inductance Meter
* Cellphone-Operated Land Rover
* Presentable Timer Using Secret-Coded Punched Card
* Rank Display System for Race and Quiz Competitions
* Remote-Controlled Toy Boat
* Microcontroller-Based Heart-Rate Meter
* Multiple Devices Switching Through Parallel Port
* Microcontroller-Based Capacitance Meter
* Token Number Display
* Microcontroller-Based DC Motor Speed Controller
* MICROCONTROLLER-BASED TEMPERATURE INDICATOR
* Buzzer Controller for 8-Team Quiz Contests
* Microcontroller-based Ultrasonic Distance Meter
* Microcontroller-based Tachometer
* Temperature Indicator-cum-Controller
* Microcontroller-Based Alarm Clock

* Simple PC-Based Digital Sound-Level Meter
* Low-Cost Versatile Timer Using AT89C2051
* Parallel-Port Interfacing and Programming Aid
* Digital Heart-Beat Counter
* Secured Room Access System
* Digital Voltmeter
* Microcontroller-based Graphics Display
* Microcontroller-based Industrial Timer
* Standalone Digital Clock
* PC-based Dual DC Motor Controller
* Wireless Messaging Via Mobile/Landline Phone
* Microcontroller-based Infrared Tracking Robot
* Remote-Controlled Real-Time Clock with Device Controller
* Auto Controller for Petrol-Run Power Generator
* Design Your Own Infrared Remote
* PIC16F84-based Digital Thermometer
* Water-level Controller-cum-motor Protector
* Digital Phase Selector
* Microcontroller-based Bidirectional Visitor Counter
* Microcontroller-based Automatic Flush System
* Two-Channel PC-based Oscilloscope
* Quiz Buzzer
* Stepper Motor Controller Using AT89C51
* Beverage Vending Machine Controller
* Digital Thermometer-cum-Controller
* Digital Weight Accumulator
* Remotely Programmable RTC-Interfaced Microcontroller for Multiple Device Control
* Auto Switch for TV
* Microcontroller-based Code Lock
* Microcontroller-based Triggering Circuit for SCR Phase Control
* Parallel-Port Testing and Programming Aid
* Fastest-Finger-First Using Microcontroller
* Remote-Controlled Land Rover—A DIY Robotic Project
* 3D Surround Sound System
* AVR Microcontroller-Based Clock
* Automatic Rain Timer
* Power Factor Correction
* AT89C2051-Based Countdown Timer
* PC-Based Remote-Controlled Stepper Motor
* Low-Cost LCD Frequency Meter
* PC-Based Transistor-Lead Identifier
* A Simple Directional Detector/Counter
* Using AVR Microcontroller for Projects—Part 3 of 3
* Speed Checker for Highways (2005)
* Using AVR Microcontroller for Projects—Part 2 of 3
* Automatic 3-Phase Induction Motor Starter
* Using AVR Microcontrollers for Projects—Part 1 of 3
* Noise-Muting FM Receiver
* Digital Stopwatch
* Remote-Controlled Stepper Motor
* Computerized Electrical Equipment Control
* Manual AT89C51 Programmer
* Medium-Power Low-Cost Inverter
* Programmable Timer Based on AT90S4433 AVR
* Low-Cost Energy Meter Using ADE7757
* Two-Wheeler Security System
* Auto Changeover to Generator on Mains Failure—Part II
* PC-based Scrolling Message Display
* Auto Changeover to Generator on Mains Failure—Part I
* Device Control through PC’s Parallel Port Using Visual Basic
* Remote-Controlled Digital Audio Processor
* Microcontroller-based Real-time Clock
* Standalone Scrolling Display Using AT90S8515 AVR
* Moving Message Over Dot-Matrix Display(2004)
* Ultrasonic Lamp-Brightness Controller
* Digital Combination Lock
* Safety Guard for the Blind
* Microprocessor-Based Home Security System
* Stepper Motor Control Using 89C51 Microcontroller
* Dynamic Temperature Indicator and Controller
* Voice Recording and Playback Using APR9600 Chip
* Load Protector with Remote Switching Facility
* PIC16F84-Based Coded Device Switching System
* Remote-Controlled Sophisticated Electronic Code Lock
* Temperature Indicator Using AT89C52
* Device Switching Using Password
* Laser-Based Communication Link
* Programmer for 89C51/89C52/89C2051 Microcontrollers
* A Bidirectional Visitors Counter
* Digital Clock Using Discrete ICs
* Lift Overload Prevented
* Sound-Operated On/Off Switch
* Digital Water-Level Indicator Cum Pump Controller
* PC-Based Data Logger
* Automatic Water-Level Controller
* Microcontroller-Based Call Indicator
* Controlling a 7-Segment Display Using PC’s Parallel Port(2003)
* Economical UPS for Cordless Phones
* Binary-To-Hexadecimal Decoder
* Proportional Load Control Using PC
* Multifactor Emergency Light
* Fluid Level with Indicator
* Microcontroller-Based School Timer
* Telephone Remote Control
* Auto-Control for 3-Phase Motors
* Programmable Melody Generator -Part II