MINI PROJECTS ON ELECTRONICS

1 Pyroelectric Fire Alarm
2 Telephone Call Recorder
3 DuoPhone
4 Mini UPS System
5 Car-Reversing Horn With Flasher
6 Short-Circuit Protection in DC Low-Voltage Systems
7 Inverter for Soldering Iron
8 Transistorised Logic Probe for TTL
9 Constant-Current Battery Charger
10 Multitone Siren
11 Generator Room Light
12 Liquid Level Alarm
13 PC Power Manager
14 Skin Response Meter
15 Solar Panel based Charger and Small LED Lamp
16 Electronic Bicycle Lock
17 Remote-operated Master Switch
18 USB Power Socket
19 Triple Power Supply
20 Smart Hearing Aid
21 Midnight Security Light
22 Automated Alarm Circuits
23 Traffic Baton
24 Laser-guided Door Opener
25 Battery-level Indicator
26 PC Temperature Controller
27 Traffic Controller
28 Night Alert
29 Muscular Stimulator
30 Wireless Switch
31 Long-Range IR Transmitter
32 Electric Window Fence Charger
33 Three-Phase Appliance Protector
34 PC Multimedia Speakers
35 Aquarium Probe
36 Bicycle Indicator
37 Poor Man’s Hearing Aid
38 Portable Lamp Flasher
39 Staircase Light With Auto Switch-Off
40 Car Anti-theft Guard
41 USB Power Booster
42 Smart Vibration Sensor
43 Drinking Water alarm
44 GLOW PLuG CONTROLLER
45 Versatile CMOS TTL Logic And Clock Probe
46 Tester For Remote Control
47 Automatic Low-Power Emergency Light
48 Mobile Bug
49 LED Lighting for Christmas
50 Current Sensor
51 Seismic Sensor
52 Dice With 7-Segment Display
53 Motorbike Alarm
54 Laptop Protector
55 Shutter Guard
56 Desktop Power Supply
57 Mobile Shield
58 Infrared Firecracker Igniter
59 Automatic Phase Changer
60 Flying Saucer
61 Anti-Collision Rear Light
62 Light Fence
63 MAT Switch
64 5-Band Graphic Equaliser
65 Clock Timer
66 Fully Automatic Emergency Light
67 IR Music Transmitter and Receiver
68 Electronic Horn
69 Ultrasonic Proximity Detector
70 Secret Bell
71 Variable Power Supply Using a Fixed-Voltage Regulator IC
72 Appliance Timer-Cum-Clap Switch
73 Telephone-Operated Calling System
74 Front Door Guard
75 Bell-Cum Light Controller
76 Friendly Charger for Mobile Phones
77 Hearing Aid
78 Speed Control of DC Motor Using Pulse-Width Modulation
79 Remote-Controlled Fan Regulator
80 Low-Power Voltage Doubler
81 Parrot-Sounding AC Doorbell
82 Multi-Melody Generator With Instrumental Effect
83 School-College Quiz Buzzer
84 Visual AC Mains Voltage Indicator
85 Simple Short-Wave Transmitter
86 Solar Lighting System
87 Infrared Bug
88 Picnic Lamp
89 Versatile Power Supply
90 Ultrasonic Proximity Detector
91 Shadow Alarm
92 IR Burglar Deterrent
93 Versatile Water-Level Controller
94 Automatic-Off Timer For CD Players
95 Heat-Sensitive Switch
96 Sensitive Vibration Detector
97 Digital Dice
98 Remote-Controlled Power-Off Switch
99 Little Door Guard
100 Stress Meter