electronics for you

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S No.Circuit NameHits
1High-Intensity, Energy-efficient LED Light5000
2Bipolar Transistor Tester2590
3Digital Thermometer8532
4Mobile Electronic Workbench7934
5Weekly Reminder7882
6Electronic Dice Using AT89C20515612
7Digital Timer Enhancement7923
8Water-Level Indicator Using 7-segment display14175
9Automatic Light Controller Using 780616969
10Spy Ear17626
11Antisleep Alarm for Students26109
12Four-Stage FM Transmitter13622
13Numeric Water-level Indicator18114
14Versatile Probe7594
15Electronic Candles31223
16Simple Sensitive Remote Control Tester4834
17Pyroelectric Fire Alarm13701
18Telephone Call Recorder23364
20Mini UPS System41190
21Car-Reversing Horn With Flasher15569
22Short-Circuit Protection in DC Low-Voltage Systems14423
23Inverter for Soldering Iron22361
24Transistorised Logic Probe for TTL8899
25Constant-Current Battery Charger22532
26Multitone Siren16947
27Generator Room Light23419
28Liquid Level Alarm29647
29PC Power Manager19553
30Skin Response Meter30021
31Solar Panel based Charger and Small LED Lamp39024
32Electronic Bicycle Lock33271
33Remote-operated Master Switch30076
34USB Power Socket29538
35Triple Power Supply25782
36Smart Hearing Aid19118
37Midnight Security Light35478
38Automated Alarm Circuits26078
39Traffic Baton23964
40Laser-guided Door Opener38831
41PC Temperature Controller29741
42Battery-level Indicator38198
43Traffic Controller34669
44Night Alert33034
45Muscular Stimulator24012
46Wireless Switch75220
47Electric Window Fence Charger11855
48Three-Phase Appliance Protector21780
49Aquarium Probe24414
50Bicycle Indicator26371
51Poor Man’s Hearing Aid19131
52Portable Lamp Flasher21071
53Car Anti-theft Guard33986
54USB Power Booster36427
55Smart Vibration Sensor30426
56Drinking Water alarm46068
57Glow Plug Controller18279
58Tester For Remote Control28000
59Automatic Low-Power Emergency Light40291
60Mobile Bug65452
61LED Lighting for Christmas44096
62Current Sensor40299
63Seismic Sensor33768
64Dice With 7-Segment Display30079
65Motorbike Alarm37682
66Laptop Protector66530
67Shutter Guard20406
68Desktop Power Supply32895
69Mobile Shield45923
70Infrared Firecracker Igniter32776
71Automatic Phase Changer33748
72Flying Saucer47934
73Anti-Collision Rear Light31142
74Light Fence33496
75MAT Switch30098
765-Band Graphic Equaliser29338
77Clock Timer44120
78Fully Automatic Emergency Light56648
79IR Music Transmitter and Receiver61574
80Electronic Horn40152
81Darkroom Timer2544
82Water level indicator With Alarm4473
83PC Multimedia Speakers4922
84Precision Amplifier with Digital Control1992
85Security System Switcher3060
86Electronic Card-Lock System4279
87Blown Fuse Indicator2387
88Simple Intercom Circuit3244
89LED-Based Message Display5232
90Telephone Receiver3106
91Water-LeveL Controller4366
92Song Number Display2905
94Musical 'Touch' Bell3897
95Audio-Visual Extra Ringer For Phone1542
96Contactless AC Mains Voltage Detector2474
97Fire Alarm4758
98Precison 1Hz Clock Generator Using Chip-On-Board1555
99Short Wave AM Transmitter2513
100Solidstate Auto Power off on Mains Failure1705
101Automatic Emergency Tourch3700
102Automatic Emergency Light4543
103Versatile CMOS TTL Logic and Clock Probe1426
104Programmable LED Indicator3254
105Touch Sensitive Musical Bell With Timer2322
106Staircase Light With Auto Switch-Off3111
1072-Line Intercom-Cum-Telephone Line Changeover Circuit1661
108Magic Light5891
109Teleremote Control2514
110Telephone Conversation Recorder2611
111Automatic Dual Output display1462
112Long Range IR Transmitter3430
113Digital Dice with numeric display1454
114Watch Dog for Telephones1907
115UPS for Cordless Telephones1724
116Economical Pump Controller1877
117Digital Speedometer5522
118House Security System6860
119Clap Switch1855
120Tiny Dew Sensor2180
121Computerised Morse Code Generator Transmitter1514
122Telecom Headset1705
123Telephone Ringer Using Timer ICs1459
124Power Supply failure alarm2502
125Protection for your electrical Appliance2538
126Simple Code Lock3643
127PC-based 7 segment rolling display2210
128Automatic Room Power Control3120
129Fuild Level Detector2017
130Accurate Electronic Stop Watch1315
131Sensitive Temperature Switch1659
132Ramp Controlled Light1390
1337MHz CW AM QRP Transmitter1755
134Auto Reset Over-Under Voltage Cut-Out1434
135Shortwave transmitter1714
136Programmable Door-Bell with Flashing LEDS2231
137Precision Attenuater with Digital Control1048
138Parallel telephone with Secrecy1504
139Telephone call meter using calculator and COB1712
140Magnetic Proximity switch1798
141Electronic Scoring game1790
142A Hierarchical Priority Encoder1131
143Digital Mains Voltage indicator1797
144Low cost PCO Billing meter1871
145Automatic Speed Controller For Fans and Coolers3585
146Telephone line based Audio Muting1164
147Precision Digial AC Power controller1307
148Phone BroadCaster1708
149Long-range FM Transmitter3539
150Self Switch power supply2266
151Electrical Equipment control using PC2711
152Low cost Transistorised intercom1723
153Cordless Phone Backup1408
154Sleep Switch cum wake timer1909
155Simple Analogue to digital converter1908
156Digital switching system2177
157Ultra Low Drop linear regulator987
15840-Meter Direct conversion receiver2186
159Frequency measurement using PC2041
160Miniature strobe light1329
161CD-Rom Drive as Digital-Audio CD Player2832
162Clap Remote3931
163Smart Phone Light1710
164Handy Zener Diode tester1489
165Telephone Line Vigilant1521
166High & Low Voltage cutout2145
167Color Sensor4143
168Running Message Display3261
169Low current high voltage power supply1703
170Intelligent Switch3364
171Automatic Temperature Controlled Fan4220
172Ultrasonic Proximity Detector43418
173Secret Bell55776
174Variable Power Supply Using a Fixed-Voltage Regulator IC54471
175Appliance Timer-Cum-Clap Switch27641
176Telephone-Operated Calling System39735
177Front Door Guard43641
178Bell-Cum Light Controller26711
179Friendly Charger for Mobile Phones54151
180Hearing Aid36018
181Speed Control of DC Motor Using Pulse-Width Modulation50388
182Remote-Controlled Fan Regulator82633
183Low-Power Voltage Doubler30279
184Parrot-Sounding AC Doorbell29309
185Multi-Melody Generator With Instrumental Effect22149
186School-College Quiz Buzzer24182
187Visual AC Mains Voltage Indicator27429
188Simple Short-Wave Transmitter28009
189Solar Lighting System85501
190Infrared Bug44646
191Picnic Lamp38570
192Versatile Power Supply35909
193Ultrasonic Proximity Detector43932
194Shadow Alarm53893
195IR Burglar Deterrent62627
196Versatile Water-Level Controller49261
197Automatic-Off Timer For CD Players32070
198Heat-Sensitive Switch37088
199Sensitive Vibration Detector35341
200Digital Dice39986
201Remote-Controlled Power-Off Switch63524
202Little Door Guard44073
203Stress Meter49077
204Medium-Power FM Transmitter51862
205Teleconferencing System49404
206Smart Cellphone Holder43268
207Fuel Reserve Indicator For Vehicles40046
208Brake Failure Indicator47267
209Safety Guard34209
210Mains Supply Failure Alarm35287
211Remote Control For Home Appliances114502
212Micromotor Controller48656
213Solar Bug54934
214Simple Digital Security System57911
215Digital Audio - Video Input Selector1670
216Auto Turn-Off Battery Charger64363
217Atmel AVR ISP Dongle44726
218Audio Amplifier for Personal Stereo56382
219Musical Light Chaser49830
220Hit Switch83300
221Water-Level Controller53811
222Fire Alarm Using Thermistor51376
223Electronic Watchdog72446
224Automatic School Bell46663
225Anti-Theft Alarm For Bikes67081
226DC Motor Control Using A Single Switch51805
227Solidstate Remote Control Switch44064
228Flashing-Cum-Running Light40947
229Quality FM Transmitter91650
230Stabilised Power Supply With Short-Circuit Indication39601
231Digital Stop Watch57259
232Cell-Phone-Controlled Audio Video Mute Switch50682
233PC-Based DC Motor Speed Controller68515
234Under-Over-Voltage Beep for Manual Stabiliser26795
235Child's Lamp56490
236Watchman Watcher51072
237Highway Alert Signal Lamp37969
238Low-Cost Electronic Quiz Table35439
239Mobile Cellphone Charger95260
240Smart Foot Switch43811
241Programmable Timer for Appliances61528
242Anti-Bag-Snatching Alarm36476
243Multiband CW Transmitter36936
244Automatic Night Lamp With Morning Alarm71671
245Touch Dimmer69069
246Mosfet-Based Preamplifier for FM Radio DXing45655
247Non-Contact Power Monitor