1Water Level Indicator Project 2Boolean Algebra Calculator Circuit 3LED based Unbiased Digital Dice 4Automatic Washroom Light ON/OFF Switch Circuit 5Intelligent Unambiguous Night Lamp Switcher Circuit 6Automatic Door Bell Ringing with Object Detection 7Panic Alarm Circuit 8Continuity Tester With Melody 9Auto Night Lamp Using High Power LED 10Thermistor Temperature Sensing Alarm Circuit 11Pull Pin Security Alarm System 12Auto Turnoff Soldering Iron Circuit 13Hot Water Geyser Controller Circuit 14Remote Operated Alarm Circuit 15Fire Alarm Circuit with Siren Sound 16Automatic Railway Gate Controller with High Speed Alerting System 17Water Level Alarm Using 555 Timer 18Battery Powered Portable Light 19Speed Control of DC Motor Using Pulse Width Modulation 20Interfacing 162 LCD with 8051 21Car Parking Guard Circuit Using Infrared Sensor 22PWM LED Dimmer Using NE555 23Simple 100W Inverter Circuit 24Lead Acid Battery Charger Circuit 25Metal Detector Circuit 26Monostable Multivibrator Circuit Operation 27Interfacing16X2 LCD with PIC Microcontroller 28Battery Charger Circuit Using SCR 29Interfacing 16X2 LCD to AVR Microcontroller 30FM Bugger Circuit 31IR Remote Control Switch 32Simple FM Radio Jammer Circuit 33Mobile Jammer Circuit 34Simple Fire Alarm Circuits 35Dancing Bi-Color LED Lights Circuit 36LED Flasher Circuit 37Morse Code Generator Circuit 38Motion Detector Circuit 39Rain Alarm Circuit 40Automatic Plant Irrigation System 41555 Timer as an Astable Multivibrator 42555 Timer in Monostable Multivibrator Mode 43Touch ON and OFF Switch Circuit 44Automatic Street Light Controller Circuit Using Relays and LDR 45555 Timer IC Testing Circuit 46Curtain Opener/Closer Circuit 47Designing SR Flip Flop with NAND and NOR Gates 48JK Flip Flop Design using CD4027 49Wireless Switch Circuit using CD4027 50Polarity cum Continuity Tester 51Mains Operated LED Light Circuit 52Reaction Timer Game Circuit 53USB Mobile Charger Circuit 54Variable Power Supply and Charger 55LED Lamp Dimmer Circuit 56Multiplexer and Demultiplexer 57Security Alarm Circuit 58Variable Voltage Power Supply from Fixed Voltage Regulator 59Understanding 7805 IC Voltage Regulator 60LED Christmas Lights Circuit 61LED Running Lights Circuit 629 LED Knight Rider Circuit 63Basic Logic Gates Using NAND Gate 64Construction of Basic Logic Gates using NOR Gate 65Electronic Letter Box 66Luggage Security Alarm 679 Way Clap Switch Circuit 68Clap Switch Circuit for Devices 69Audio Equalizer Circuit 7012V to 24V DC Converter Circuit 71Police Siren Circuit using NE555 Timer 72Mosquito Repellent Circuit 73Cell Phone Detector 74Air Flow Detector Circuit 7512v DC to 220v AC Converter Circuit 76FM Transmitter Circuit 77150W Power Amplifier Circuit 78100W MOSFET Power Amplifier Circuit 797 Segment LED Display Decoder 80100w Subwoofer Amplifier Circuit 81Solar Water Heater 82Anti Theft Alarm For Bikes 83ATmega644 JTAG Debugger 84Auto charging grinding machine with solar power 85Auto Intensity Control of Street Lights 86Auto turn off battery charger 87Automated Car Parking System 88Automated Traffic Signal Controller 89Automated Vehicle Identification and Toll-Pass System. 90Automatic Control for Unmanned Railway Gate. 91Automatic Dusk to Dawn (Evening on to Morning Off) 92Automatic Exhaust Fan Control Coupled To Gas Leak Detection 93Automatic Heat Detector 94Automatic Light Beam Shifting Of Vehicles On High Ways 95Automatic Light Lamp with Morning Alarm 96Automatic solar street light controller 97Automatic Speed Regulation Depending On Incoming Vehicle On High Ways(Fuel Injection) 98Autonomous Self-parking car 99Ball Picker Robot 100Beacon Flasher Using Microcontroller 101Bidirectional Rotation of an Induction Motor with a Remote Control Device 102Biopic Heartbeat Monitor 103Blackout game 104BLDC Motor Speed Control with RPM Display 105Build A Carbon Monoxide SNIFFER 106Build A Simple Infrared Illuminator 107Build The Breath O-Meter 108Built Your Own Multi-Frequency Digital Signal Generator 109Burglar Alarm System 110Cell Phone Based DTMF Controlled Garage Door Opening System 111Cell phone controlled solar vehicle 112Clap Switch 113Co2 & O2 Monitoring In Green House 114Coin Based Toll Gate System. 115Colour Intensity Measurement (Liquids) 116Colour Reflectance Measurement (Solids) 117Condenser Mice Audio Amplifier 118Data Logger 119Dc Motor Control PWM Technique 120DC Motor Direction Control 121Density Based Traffic Signal System 122Density Based Traffic Signal System Using PIC Microcontroller 123Depth Of The Medium Based On Attenuated Reflectance 124Depth Of The Medium/Liquid Level By Change In Conductance 125Designing A Digital Thermometer By Using A Selected Temperature Sensor 126Digital Alarm Clock 127Digital Compass/Navigation 128Digital Object Counter (5v) 129Digital Panel Meter (5v) 130Digital Receipts System 131Ding-Dong Bell 132Discotheque Light Stroboscopic Flasher 133Display of Dialed Telephone Numbers on Seven Segment Displays 134DTMF Development Board 135DTMF Proximity Detector 136DTMF Telephone Remote Control 137Dual Motor L298 H-Bridge Control 138E2prom Based Data Entry Real Time Clock Control Application 139Electric Etch 140Electrical Equipment Controller 141Electrical power generation system using railway track 142Electrical power generation using foot steps 143Electrical power generation using speed breaker 144Electrical power generation using steam power plant 145Electrical power generation using thermal power plant 146Electricity and water pumping system using wind mill 147Electronic Card Lock System 148Electronic Eye Controlled Security System 149Electronic Eye With Security System 150Electronic Jam 151Electronic security system 152Electronic watchdog 153ESD Foam Touch Controlled Brick Blaster 154Eye Ball Control of Wheel Chair for Physical Handicapped person 155Fart Intensity Detector 156Fastest Finger First Indicator 157Fastest Finger Press Quiz Buzzer 158FET 4 Input Mixer (+/-9v) 159Fire & Smoke Alarm System 160Fluid Flow Measurement (Liquid) 161Fluid Level Detection 162Four Quadrant DC Motor Control without Microcontroller 163Four Quadrant DC Motor Speed Control with Microcontroller 164Gesture Recognition Based on Scratch Inputs 165GPS Data Logger with Wireless Trigger 166Heliostat (MP4) 167Hidden Active Cell Phone Detector 168High Voltage DC by Marx Generator Principles 169Home Automation (Ac/Dc) Using Pc Interface 170Home Automation Using Television Remote Control 171House security system 172Hydro power plant (model) 173I2cprotocol Based Real Time Clock Control Application 174Incoming Phone Ring Light Flasher 175Industrial Automation Data Acquisition System 176Industrial Battery Charger by Thyristor Firing Angle Control 177Industrial Power Control by Integral Cycle Switching without Generating Harmonics 178Industrial Protection System Using Light Dependent Resistor 179Infra Red Illuminator 180Infrared Auto Switch 181Infrared Card less Head Phone 182Infrared Control For PC 183Infrared Remote Control Timer 184Infrared Toy Car Motor Controller 185Intelligent Battery Charger 186Intelligent Overhead Tank Water Level Indicator 187Intelligent solar emergency light 188Interfacing Color Sensor With Different Wave Lengths to Microcontroller 189Interfacing IBM Key Board To Micro Controller 190Invisible Broken Wire Detector 191Ionizer Mains (230v Ac) 192IR Obstacle Detection to Actuate Load 193IR Remote Switch 194IRDA (Infra Red Data Communication Protocol Implementation 195Knock Alarm 196L293 H-Bridge Dc Motor Controller 197Lamp Life Extender by ZVS (Zero Voltage Switching) 198Laser Audio Transmitter 199Laser Torch Based voice Transmitter and Receiver 200Leaf Moisture Analyzer 201LED Panel Meter 202LED Sensor Keyboard 203LED-Based Message Display 204Life Cycle Testing of Electrical Loads by Down Counter 205Light Sensing Robot 206Light Sensitive Inductive Load Controller 207Line Follower Robot 208Line Following Robotic Vehicle Using Microcontroller 209Line Telephone Share 210Logic Analyzer 211Long Duration Timer 212Long Range Fm Transmitter 213Long Range FM Transmitter with Audio Modulation 214Micro Controller Clock 215Micro Controller To Ethernet Interface 216Microcontroller Based Intelligent Glass Break Detector 217Microcontroller based Scrolling Message Display 218Mobile Cell Phone Charger 219Mobile Phone Battery Charger 220Modern House Automation (Ac/Dc) Using IR Communication 221Multi functional wind mill 222Multi sensor Data Transmission 223Musical Touch Bell 224NES emulator 225Object Counter with 7 Segment Display 226ODB-II Automotive data interface 227Optimum Energy Management System 228Over Voltage or Under Voltage Tripping Mechanism 229Parallel Telephone Lines with Security System 230Particulates Monitoring Using Light Beam Attenuation 231PC Based Electrical Load Control 232PC based solar car 233PC Controlled Scrolling Message Display for Notice Board 234PC To PC Laser Communication 235Ph Controller 236Phase Sequence Checker for Three Phase Supply 237Portable Programmable Medication Reminder 238POV display 239Programmable Load Shedding Time Management for Utility Department 240Programmable Synthesized Guitar 241Quality FM Transmitter 242Remote Control For Home Appliances 243Remote Controlled Fan Regulator 244Remote controlled solar car 245Remote Jamming Device 246RF Control Of Induction Motors And Other Industrial Loads 247Rhythm Following Flashing Lights 248Robot Control Using TV Remote 249Robot Plotter 250Season Based Automatic Streetlights Switching 251Self-Adjusting Window Shade 252Simple Code Lock 253Simple Function Generator 12v 254Sine Pulse Width Modulation (spwm) 255Sinewave Generator 256Six Channel Petrochemical Fire Monitoring And Control Station 257Smooth Start of a Single Phase Induction Motor 258SMS based solar pick and place robot 259SMS Chatting Using RF 260SMS controlled solar moving vehicle for industrial application 261Snake arm Multiple PID motor controller 262Solar agricultural water pumping system 263Solar agricultural water pumping system with auto tracking 264Solar air conditioner 265Solar air cooler with auto tracking 266Solar automated guided vehicle (solar agv) 267Solar automated track guided vehicle (solar atgv) 268Solar automatic cell phone charger with pay system 269Solar automatic traffic and street light controller 270Solar Battery Charger And Shunt Regulator 271Solar car (running model) 272Solar cycle 273Solar electric go bed drive 274Solar electric two wheeler with rechargeable battery 275Solar emergency lighting system with battery charger 276Solar fan with lighting system 277Solar intelligent vehicle (car model) 278Solar irrigation system 279Solar lighting system 280Solar lighting system with auto tracking 281Solar lighting with auto changeover system 282Solar power generation with auto tracking 283Solar powered accident prevented for train 284Solar powered automatic head light dim/bright controller 285Solar powered automatic railway gate controller 286Solar powered automatic rain operated wiper 287Solar powered automatic temperature controller with cooling system 288Solar powered automatic vehicle accident information system 289Solar powered fire fighting with visitor guided vehicle 290Solar powered path finding robot 291Solar powered remote controlled bomb detecting robot 292Solar powered remote operated weapon system 293Solar powered unaided guided vehicle (solar ugv) 294Solar powered visitor guided with material handling vehicle 295Solar powered voice controlled vehicle 296Solar race car 297Solar railway track crack detecting vehicle 298Solar remote controlled video analyzing pick and place vehicle 299Solar ups with auto tracking 300Solar wheel chair for physically disabled 301Speed Checker to Detect Rash Driving on Highways 302Stamp Value Calculator for Postage Needs 303Step Up 6 Volt DC to 10 Volt DC Using 555 Timer 304Stepper Motor Based Valve Controller 305Stepper Motor Control Using Microcontroller 306Street Light that Glows on Detecting Vehicle Movement 307Sun Tracking Solar Panel 308Telephone Call Counter 309Telephone Number Display 310Telephone Receiver 311Temperature Controlled Soldering Station 312Thermistor Based Temperature Control 313Three Phase Solid State Relay with ZVS 314Thyristor Controlled Power for Induction Motor 315Thyristor Power Control by IR Remote 316Time Delay Based Relay Operated Load 317Tissue Impedance Digital Biopsy 318Touch Controlled Load Switch 319Touch Dimmer 320Touchpad/Infrared Music Synthesizer 321Traction control system 322U.S.B. Connectivity To Micro Controller 323Ultra Bright LED Lamp 324UNIPOLAR 4-Phase Stepper Motor Controller Board 325Using TV Remote as a Cordless Mouse for the Computer 326Variable Auxiliary Power Supply 327Video Activated Relay to Control the Load 328Voice Tuner 329Water Level Controller 330Water turbine power generation system 331Weather Canvas 332Wind mill power generation system 333Wind turbine power generation system 334Wire Loop Breaking Alarm Signal 335Wireless Audio Transmitter for TV 336Wireless music player 337Wireless Power Transfer 338Wireless Vehicle Path Tracer Using IR & RF