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RF based Wireless Remote Control 149,011
Wireless motor control through RF 72,043
Infrared (IR) sensor 65,167
Automatic night lamp 60,588
Traffic light signal 37,282
DTMF Decoder 33,807
Water level controller cum indicator circuit diagram 32,598
Light sensor using photodiode 31,861
Relay activation using TSOP 1738 31,161
Working of light dependent resistor 29,088
Touch switch 28,289
USB Mobile Charger Circuit Diagram 26,721
Audio amplifier 25,466
Intruder alarm / Burglar alarm based Home Security System 23,884
Fire alarm 23,666
Single switch motor on/off.. Clockwise/anticlockwise 23,232
Music (Data) transfer by IR by amplification 23,090
Liquid level Alarm 21,400
Color distinguished using LDR/Color sensor using LDR 19,858
Variable power supply 18,590
Darkness detector 18,163
Remote Control For Home Appliances 17,874
Generating time delay with 555 IC 17,584
Remote Controlled Toy Car 17,206
Shadow Alarm using LDR 17,144
H-bridge using transistor 16,756
Water Sensor Circuit 16,708
RF based Intruder Alarm 16,545
Automatic light/dark indicator 16,338
Power failure alarm 14,545
RF based Fire Alarm (Overheat Alarm) 14,457
2 in 1 Doorbell 13,713
Water Tank Overflow Alarm 13,711
Wireless Switch Circuit Diagram 13,239
Music (Data) transfer by IR 13,028
555 Timer As Amplifier 12,902
Night Lamp using 555 12,705
Light detector 11,910
2-1 Quiz Buzzer 11,784
Water level indicator with display 11,712
Long range IR 11,554
Voltage Doubler Circuit Using IC555 11,452
9-Way Clap Switch Circuit Diagram 11,362
Magic Eye Circuit Using 4049 IC 11,151
Light dependent frequency variation using LDR 10,887
555 Timer IC Tester 10,589
Bathroom Light Off Timer 10,053
Fixed voltage power supply 10,040
Inverting amplifier using 741 10,008
Dancing LED's 9,886
Seismic sensor 9,808
Relay control by sound 9,715
Electronic Letter Box 9,692
Opamp as comparator 9,425
Piezo sensor as input 9,348
BCD to 7 Segment display Circuit 9,316
Low pass filter 9,266
Transistor Tester Circuit Diagram 9,092
Transistor as audio amplifier 9,046
Full range centigrade temperature sensor 8,664
Simple AC to DC converter using bridge rectifier 8,643
Electronic Dice Circuit 8,594
Touch Switch Circuit using 555 Timer 8,495
Overheat/Overcooling circuit breaker 8,296
Timer Circuit using IC CD 4060 8,163
Bi Color LED 8,124
Astable mode by NAND gate 7,958
Led Flasher Circuit 7,860
Active high trigger for 555 in monostable mode 7,605
Relay control through mic 7,317
Automatic Wash Basin Tap Controller 7,303
Vehicle Indicator Circuit 7,242
High Pass Filter Circuit 7,212
Electronic Code Lock Circuit 7,143
Differential amplifier 7,088
Relay operation using Darlington Pair 7,022
Metronome 6,992
Sound Operated LED 6,787
Voltage boost by using a resistor with 78XX 6,772
Electronic Timer Circuit 6,693
Sound Operated Switch 6,596
Understanding Decade Counter CD4017 6,549
NAND gate monostable 6,451
IC 555 Based Message Display Circuit 6,428
Security Alarm for Doors, Almirah, cupboards using Opam 6,280
Electronic alarm for cash box, lockers 6,239
Remote Control for Devices using Cell Phone 6,200
Sound Generation using 555 6,067
Battery Level Indicator 6,014
Electronic Door Bell 5,901
90 Second Timer 5,777
Periodically Turning On & Off Mosquito Repellent Circuit Diagram 5,707
NOT gate monostable 5,696
Negative supply using 555 IC 5,675
Vehicle Indicator 5,659
Luggage Security Alarm 5,533
Refrigerator Door Alarm 5,414
Piezo sensor as output 5,363
Electronic Circuit: Digital Stopwatch 5,344
4 Player Quiz Buzzer 5,140
Security System 5,090
Tone generator Circuit Diagram 5,049
Automatic Fan Speed Regulator 4,972
Non inverting amplifier 4,965
Understanding JK flip flop using CD4027 4,960
Random Number Generator Using 7 Segment Display 4,945
CD4049 Based LED torch 4,860
Water Level Indicator with Display 4,798
Audio Amplifier using Opam 4,728
Magic Eye using 555 Timer IC 4,704
Multi Color Lighting 4,684
Parked Vehicle Indicator 4,642
Voltage Doubler Circuit Using IC 4049 4,583
Coin Toss/Flip Simulator Circuit 4,575
Night Lamp with Timer for Stairs 4,463
LED Lamp Using CA3140 IC 4,428
Interfacing 4026 with 7 segment display 4,423
Two Way Intercom 4,407
CD 4060IC based Message Display Circuit 4,313
Inverting amplifier 4,275
Reminder Alarm 4,262
Darkness Detector Alarm 4,251
NE 555 Timer based Automatic Headlight 4,244
Secure room access system 4,204
Transistor Based Secret Bell 4,203
Humidity Detector Circuit 4,171
Understanding NOR Gate (CD4001) 4,162
Sound generation in audio range 4,153
Toggle flip flop using CD4013 4,150
Timer Based Code Lock 4,144
Transistor based Security Alarm 4,115
Line Following Robot 4,096
Soil Moisture Detector 4,059
Electronic Code Locking System 4,031
Exhaust Fan Circuit Diagram 3,989
Conversion of NAND gate to Basic gates 3,948
Variable power supply and charger with emergency light 3,941
IC555 based Multicolor LED Lamp Circuit Diagram 3,903
UM3561 IC Based Security Alarm 3,863
CD 4013 based Sound Sensing Module 3,853
Variable Power Supply From Fixed Voltage Regulator 3,768
IR to RF Converter 3,766
LDR Based Automatic Lamp 3,756
Safety Alarm Circuit 3,753
Clock with LED pendulum with tick tock sound 3,747
Display System used in Restaurant 3,706
Flip Flop based Staircase Switch 3,640
Fading LEDs 3,572
Automatic Washroom Light Controller 3,526
Number Guessing Game 3,489
Automatic Power OFF timer for CD player 3,439
CD 4013 Based Two Way Switch 3,438
CD 4027 Based Emergency Lighting System 3,385
LED Based Pendulum Circuit 3,369
Suitcase Security Alarm 3,310
Multi-Utility Flashing Light 3,304
Multitone Generator Circuit 3,287
Timer Circuit using IC 4026 3,249
Polarity cum Continuity Tester 3,239
Remote Tester Circuit 3,212
Obstacle Avoiding Robot 3,210
Car Reverse Horn 3,181
Porch Light (Auto Turn Off Light) Circuit Diagram 3,175
Curtain Opener Circuit 3,156
Cell Phone Based Multiple Device Controller 3,126
CD 4060 Based Security Alarm 3,086
PC Temperature Controller 3,034
Intruder Alarm 3,028
Inverting amplifier with signal feedback 3,010
Window and Door Guard with Light Sensor 2,829
LED Based Stop Watch 2,817
Classroom Mic 2,815
Electronic Lock using Switches 2,742
Electronic Thermometer for Beverage Temperature Measurement 2,708
Conversion of NOR gate to Basic gates 2,657
Toggle switch using CD4017 2,642
NAND Gate as SR Flip Flop 2,625
CD4001 IC based Lighting System 2,561
Coin Toss Circuit on 7 Segment Display 2,511
8 Player Quiz Buzzer 2,478
NOR Gate as SR Flip Flop 2,476
Multipurpose Timer With Musical Alarm 2,460
Hearing Aid 2,341
Spell Effect Sign Display Circuit 2,268
Pre Set Off Timer 2,267
Reaction Timer Game 2,256
Notepad Lamp 2,253
Crossing Light Indicator 2,185
"Hit the Target" Game 2,178
Multi Sound Buzzer 2,105
Sound Scanner Circuit 2,097
Electronic Number Game 2,004
Amplifier for Musical ICs 1,853
Direction Pointer 1,562
Circuit Diagram to Automatically Hibernate your PC 1,413
Logic State Indicator 1,388
Auto and Manual Pulse Generator 692
Zero Cross Detector (ZCD) Circuit 113
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