| RF based Wireless Remote Control | 82,176 |
| Wireless motor control through RF | 40,656 |
| Automatic night lamp | 35,113 |
| Infrared (IR) sensor | 28,100 |
| Relay activation using TSOP 1738 | 21,198 |
| DTMF Decoder | 18,337 |
| Touch switch | 16,238 |
| Music (Data) transfer by IR by amplification | 16,050 |
| Traffic light signal | 15,781 |
| Single switch motor on/off.. Clockwise/anticlockwise | 14,896 |
| Light sensor using photodiode | 14,737 |
| Liquid level Alarm | 13,614 |
| Intruder alarm/ security system | 10,931 |
| Audio amplifier | 10,427 |
| Working of light dependent resistor | 10,318 |
| RF based Intruder Alarm | 10,294 |
| Water level controller cum indicator | 9,943 |
| Color distinguished using LDR/Color sensor using LDR | 9,378 |
| Variable power supply | 9,080 |
| Generating time delay with 555 IC | 8,760 |
| Fire alarm | 8,566 |
| RF based Fire Alarm (Overheat Alarm) | 8,206 |
| Music (Data) transfer by IR | 7,186 |
| Light dependent frequency variation using LDR | 7,061 |
| Power failure alarm | 6,897 |
| Automatic light/dark indicator | 6,861 |
| H-bridge using transistor | 6,584 |
| Shadow Alarm using LDR | 6,485 |
| USB Mobile Charger | 6,443 |
| Relay control by sound | 5,331 |
| Seismic sensor | 5,005 |
| Long range IR | 4,936 |
| Darkness detector | 4,851 |
| Fixed voltage power supply | 4,535 |
| Inverting amplifier using 741 | 4,449 |
| Opamp as comparator | 4,301 |
| Low pass filter | 4,008 |
| Piezo sensor as input | 3,942 |
| Water Sensor Circuit | 3,934 |
| Full range centigrade temperature sensor | 3,755 |
| Astable mode by NAND gate | 3,733 |
| Light detector | 3,653 |
| Relay control through mic | 3,642 |
| Overheat/Overcooling circuit breaker | 3,611 |
| Transistor as audio amplifier | 3,372 |
| Night Lamp using 555 | 3,353 |
| NOT gate monostable | 3,210 |
| High voltage high current power supply | 3,150 |
| Voltage Doubler Circuit | 3,068 |
| Active high trigger for 555 in monostable mode | 3,025 |
| Transistor Tester | 2,904 |
| Negative supply using 555 IC | 2,782 |
| Metronome | 2,761 |
| NAND gate monostable | 2,754 |
| Differential amplifier | 2,676 |
| High pass filter | 2,632 |
| 2-1 Quiz Buzzer | 2,516 |
| Non inverting amplifier | 2,357 |
| Voltage boost by using a resistor with 78XX | 2,353 |
| Piezo sensor as output | 2,341 |
| 2 in 1 Door Bell | 2,116 |
| Touch Switch using 555 Timer | 2,061 |
| Electronic Dice Circuit | 2,059 |
| Sound generation in audio range | 1,942 |
| Bi Color LED | 1,917 |
| 555 Timer As Amplifier | 1,889 |
| Led Flasher Circuit | 1,791 |
| Water Tank Overflow Alarm | 1,758 |
| Vehicle Indicator Circuit | 1,749 |
| Inverting amplifier | 1,667 |
| Sound Generation using 555 | 1,516 |
| Tone generator | 1,469 |
| 555 Timer IC Tester | 1,437 |
| Inverting amplifier with signal feedback | 1,412 |
| Relay operation using Darlington Pair | 1,386 |
| Vehicle Indicator | 1,360 |
| Coin Toss/Flip Simulator Circuit | 1,322 |
| Night Lamp with Timer for Stairs | 1,301 |
| Sound Operated LED | 1,188 |
| Periodically Turning On & Off Mosquito Repellent | 1,033 |
| Electronic Letter Box | 1,003 |
| Magic Eye Circuit Using 4049 IC | 1,000 |
| Electronic alarm for cash box, lockers | 941 |
| Security Alarm for Doors, Almirah, cupboards using Opam | 916 |
| Refrigerator Door Alarm | 786 |
| Multi-Utility Flashing Light | 751 |
| Multi Color Lighting | 689 |
| Electronic Timer Circuit | 677 |
| Luggage Security Alarm | 669 |
| CD 4060IC based Message Display Circuit | 665 |
| Audio Amplifier using Opam | 664 |
| 90 Second Timer | 660 |
| Voltage Doubler Circuit | 620 |
| Timer Circuit using IC CD 4060 | 588 |
| Transistor Based Secret Bell | 563 |
| Understanding NOR Gate (CD4001) | 550 |
| CD4049 Based LED torch | 456 |
| CD 4013 based Voice Sensing Module | 126 |
| Flip Flop based Staircase Switch | 111 |
| CD 4013 Based Two Way Switch | 108 |
| Automatic OFF timer for CD player | 90 |
| Conversion of NOR gate to Basic gates | 41 |
| Conversion of NAND gate to Basic gates | 32 |
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