BUILD YOUR OWN ELECTRONICS CIRCUITS
FOR STUDENT AND HOBBYISTS, BUILD YOUR OWN ELECTRONICS CIRCUITS STEP BY STEP TO ELECTRONIC PROJECTI am proud to bring you variety of Electronic Circuit for different types of learning. Learn and enjoy as you build. Please take all necessary precaution when dealing with high voltages. To view book click here.
TABLE OF CONTENTS
CHAPTER 1
1.1
40-Metre
Direct Conversation Receiver - 1
1.2
5-Band
Graphic Equalizer ---- 2
1.3
7 Mhz Cw/Am
Qrp Transmitters -------- 6
1.4
9-Line
Telephone Sharer ------ 7
CHAPTER 2
2.1
A
Hierarchical Priority Encoder 10
2.2
A Highly
Efficient Dc Lamp Dimmer - 12
2.3
Ac Mains
Bistable Switch --------- 13
2.4
Add
Auto-Start To Generators 15
2.5
Adjustable
Dancing Lights 16
2.6
Af/Rf Signal
Tracer ------- 17
2.7
Anti-Bag-Snatching
Alarm 19
2.8
Anti-Collision
Rear Light --- 21
2.9
Antisleep
Alarm For Stude - 22
2.10
Aquarium
Proble --- 24
2.11
Atmel Avr
Isp Dongle -------- 27
2.12
Audio
Amplifier For Personal Stereo --------- 29
2.13
Audio-Visual Extra Ringer For Phone ------- 31
2.14
Auto Reset
Over/ Under Voltage Cut- Out --- 32
2.15
Auto
Turn-Off Battery Charger ------ 34
2.16
Automated
Alarm Circuits 36
2.17
Automatic
Dual Output Display ----- 39
2.18
Automatic
Emergency Light 40
2.19
Automatic
Heat Detector ---- 41
2.20
Automatic
Night Lamp With Morning Alarm--------- 43
2.21
Automatic
Phase Changer - 46
2.22
Automatic
Room Power Controller - 48
2.23
Automatic
School Bell ------- 51
2.24
Automatic
Switch For Audio Power Amplifier------- 53
2.25
Automatic
Temperature Controlled Fan ----- 55
2.26
Automatic-Off
Timer For Cd Players -------- 57
CHAPTER 3
3.1
Baton ---- 59
3.2
Battery Operated
High Voltage Source ------ 63
3.3
Battery-Level
Indicator ---- 65
3.4
Bell-Cum-Light
Controller - 67
3.5
Bicycle
Indicator ---- 69
3.6
Bipolar
Transistor Tester --- 72
3.7
Blown Fuse
Indicator ----- 75
CHAPTER
4
4.1
Call Bell
With Welcome Indication -- 77
4.2
Capacitance
Bridge - 79
4.3
Car
Anti-Theft Guard 80
4.4
Car-Reversing
Horn With Flasher ---- 83
4.5
Cash Box
Guard ------ 85
4.6
Cd-Rom Drive
As Digital Audio Cd-Player --- 88
4.7
Cell
Phone-Based Device Control With Voice Acknowledgement-- 90
4.8
Clap Remote 98
4.9
Computerized
Morse Code Generator/Transmitter - 102
4.10
Computerized
Universal Timer ------ 106
4.11
Contactless Ac
Mains Voltage Detector Current Sensor------ 107
4.12
Current Sensor ------ 108
CHAPTER
5
5.1
Dark Room
Timer ---- 110
5.2
Dc Motor
Control Using A Single Switch ------ 112
5.3
Designing A
Low-Cost Precision Thermometer ------- 114
5.4
Designing
Low Power Products Using Msp430 Microcontroller-- 118
5.5
Desktop
Power Supply ------- 134
5.6
Dew-Point
Sensor ---- 136
5.7
Dice With
7-Segment Display 138
5.8
Digital Dice
With Numeric Display --- 140
5.9
Digital
Mains Voltage Indicator ------- 141
5.10
Digital
Speedometer 142
5.11
Digital Stop
Watch -- 146
5.12
Digital
Thermometer -------- 148
5.13
Digital
Timer Enhancement - 150
5.14
Drinking
Water Alarm -------- 153
5.15
Dtmf
Receiver Ic Mt8870 Tester ----- 155
5.16
Dual- Colour
Stroboscope --- 158
5.17
Duo Phone -- 161
CHAPTER 6
6.1
Economical
Pump Controller -------- 164
6.2
Electric
Guitar Preamplifier 166
6.3
Electronic
Bicycle Lock ----- 168
6.4
Electronic
Candles - 170
6.5
Electronic
Dice Using At89c2051 -- 172
6.6
Electronic
Motor Starter --- 174
6.7
Electronic
Security System 176
6.8
Electronic
Watch Dog ------- 180
6.9
Electronics
Card-Lock System ------ 183
CHAPTER 7
7.1
Fire Alarm - 186
7.2
Fire Alarm
Using Thermistor ------- 187
7.3
Flasher For
Deepawali ------ 188
7.4
Flashing-Cum-Running
Light ------- 190
7.5
Flying Saucer ------- 191
7.6
Four-Stage
Fm Transmitter -------- 194
7.7
Frequency
Counter --------- 195
7.8
Frequency
Measurements Using Pc -------- 200
7.9
Friendly
Charger For Mobile Phones ------- 203
7.10
Fuel Reserve
Indicator For Vehicles -------- 205
7.11
Fully
Automatic Emergency Light - 207
CHAPTER 8
8.1
Gas Leakage
Alarm -- 210
8.2
Generation
Of 1-Sec Pulses Spaced 5 Sec.Apart ------ 212
8.3
Generator
Room Light ------ 214
8.4
Glow Plug
Controller -------- 216
8.5
Guitar And
Microphone ----- 218
8.6
Guitar
Effect Pedal Power -- 221
CHAPTER 9
9.1
Handy Zener
Diode Tester --- 224
9.2
Hearing
Aid 225
9.3
Heat-Sensitive
Switch -------- 227
9.4
Highway
Alert Signal Lamp - 230
9.5
Hit Switch -- 232
9.6
House
Security System ----- 234
CHAPTER 10
10.1
Infrared Bug -------- 236
10.2
Infrared
Electronic Shooting Game 237
10.3
Infrared
Fire Cracker Igniter ------ 241
10.4
Infrared
Illuminator -------- 243
10.5
Infrared
Remote Control Timer --- 247
10.6
Intercom
Using Lm386 ---- 249
10.7
Intruder
Radio Alert System -------- 251
10.8
Inverter For
Soldering Iron --------- 254
10.9
Ir Burglar
Deterrent -------- 255
CHAPTER 11
11.1
Laptop Audio
Amplifier -- 257
11.2
Laptop
Protector 258
11.3
Laser
Communication System --- 260
11.4
Laser-
Guided Door Opener ------ 264
11.5
Lead acid
laser communication battery Charger With Voltage Analyzer System 266
11.6
Led
Voltmeter -- 268
11.7
Led-Based
Message Display --- 269
11.8
Light Fence ----- 272
11.9
Liquid Level
Alarm ----- 273
11.10
Little Door
Guard ------- 275
11.11
Long-Range
Ir Transmitter ----- 278
11.12
Low Current,
High Voltage Power Supply ------- 280
11.13
Low-Cost
Electronic Quiz Table --------- 281
11.14
Low-Cost
Hearing Aid - 283
11.15
Low-Power
Voltage Doubler -- 284
CHAPTER 12
12.1
Mains Supply
Failure Alarm ------ 286
12.2
Mat Switch ------- 288
12.3
Medium-Power
Fm Transmitter 290
12.4
Microcontroller-Based
Moving Message Display--------- 291
12.5
Microcontroller-Based
Ring Tone Player --------- 299
12.6
Microcontroller-Based
Serial Data Transfer To Pc------- 309
12.7
Midnight Security
Light --------- 317
12.8
Mini Ups
System --------- 319
12.9
Miniature Strobe
Light -- 321
12.10
Mobile Bug ------ 322
12.11
Mobile Car
Stereo Player -------- 325
12.12
Mobile Cell
phone Charger -------- 328
12.13
Mobile
Electronic Workbench -- 330
12.14
Mobile
Shield --- 332
12.15
Mosfet-Based
Preamplifier For Fm Radio Dxing 334
12.16
Motion
Sensor For Security Light -------- 338
12.17
Motorbike
Alarm -------- 341
12.18
Multiband Cw
Transmitter ------ 344
12.19
Multi-Melody
Generator With Instrumental Effect ----- 346
12.20
Multi-Switch
Doorbell With Indicators - 349
12.21
Multitone
Siren --------- 350
12.22
Muscular
Stimulator --- 352
12.23
Musical
Light Chaser --- 355
CHAPTER 13
13.1
Night Alert ------ 357
13.2
Non-Contact
Power Monitor ---- 359
13.3
Number
Guessing Game --------- 360
13.4
Numeric
Water-Level Indicator --------- 363
CHAPTER 14
14.1
Parallel
Port Controller Using Matlab ---- 364
14.2
Parrot-Sounding
Ac Door Bell --- 376
14.3
Pc Based
Digital Clock --- 378
14.4
Pc Based
Wireless Appliance Control ---- 379
14.5
Pc
Multimedia Speakers -- 387
14.6
Pc Power
Manager ------- 389
14.7
Pc Temperature
Alarm ----- 391
14.8
Pc-Based Dc
Motor Speed Controller ------ 394
14.9
Pc-Based
Wireless Control For Toy Car --- 396
14.10
Peak Level
Monitor -------- 413
14.11
Phase Angle
Control Of Scr Using At89c51 --------- 416
14.12
Pic16f877a-Based
Temperature Monitoring System------- 424
14.13
Picnic Lamp -------- 431
14.14
Portable
Lamp Flasher -- 433
14.15
Portable
Signal Wand ----- 435
14.16
Precision
1hz Clock Generator Using Chip- On – Board--- 437
14.17
Precision Amplifier With Digital Control - 439
14.18
Programmable
Door- Bell With Flashing Leds ----- 441
14.19
Programmable
Led Indicator ------ 442
14.20
Programmable
Priority Time Switch ------ 444
14.21
Programmable
Timer For Appliances ----- 448
14.22
Pulse
Counter Using At89c4051 -- 451
14.23
Pulse
Generator -- 458
14.24
Put Coin And
Draw Power 460
14.25
Pyroelectric
Fire Alarm - 467
CHAPTER 15
15.1
Ramp
Controlled Light --- 469
15.2
Ready-To-Use
Object Counter ---- 470
15.3
Remote
Control For Home Appliances --- 473
15.4
Remote
Control For Toy Car ------ 474
15.5
Remote-Controlled
6-Camera Cctv Switcher ------ 476
15.6
Remote-Controlled
Fan Regulator -------- 491
15.7
Remote-Controlled
Power- Off Switch --- 493
15.8
Remote-Operated Master Switch -------- 495
15.9
Remote-Operated
Musical Bell -- 497
15.10
Rfid-Based
Security System ------ 498
15.11
Rpm Counter
Using Microcontroller At89c4051 505
15.12
Running
Message Display ------ 510
CHAPTER 16
16.1
Safe
Cigarette Lighter Power Socket ----- 512
16.2
Safety Guard ---- 514
16.3
Secure
Digital Access System Using Ibutton ----- 515
16.4
Security
System Switcher ------- 522
16.5
Seismic
Sensor - 524
16.6
Sensitive
Temperature Switch - 526
16.7
Sensitive
Vibration Detector ---- 527
16.8
Servo Motor
Tester ----- 529
16.9
Shadow Alarm - 531
16.10
Short Wave
Am Transmitter ---- 532
16.11
Short Wave
Transmitter 534
16.12
Shutter
Guard -- 535
16.13
Simple
Digital Security System 537
16.14
Simple
Intercom Circuit --------- 539
16.15
Simple Logic
Probe ----- 541
16.16
Simple
Sensitive Remote Control Tester -------- 543
16.17
Simple
Short-Wave Transmitter --------- 544
16.18
Simple
Soldering Iron Temperature Regulator -- 546
16.19
Simple
Stereo Power Amplifier With 7905 ------- 547
16.20
Single Phase
Electronic Starter - 549
16.21
Skin Response
Meter -- 553
16.22
Smart
Bicycle Light ----- 555
16.23
Smart Cell
phone Holder -------- 558
16.24
Smart
Exhaust Fan Switch ------ 560
16.25
Smart Foot
Switch ------ 562
16.26
Smart
Hearing Aid ------ 564
16.27
Smart Laptop
Docking Station - 566
16.28
Smart Phone
Light ------ 569
16.29
Smart
Vibration Sensor -------- 571
16.30
Solar Bug ------- 573
16.31
Solar
Lighting System - 574
16.32
Solid State
Auto Power-Off On Mains Failure --- 576
16.33
Solid State
Remote Control Switch ------ 578
16.34
Solid State
Voltage Stabilizer -- 581
16.35
Song Number
Display - 589
16.36
Sound
Controlled Flip-Flop ---- 590
16.37
Speed
Control Of Dc Motor Using Pulse-Width Modulation- 592
16.38
Spy Ear -------- 594
16.39
Stabilized
Power Supply With Short-Circuit Indication-- 596
16.40
Stereo Brick
Amplifier ---- 597
16.41
Stress Meter ------- 606
CHAPTER 17
17.1
Tacho For
Microprocessor Based Drives - 609
17.2
Tele
Conferencing System --------- 611
17.3
Telecom
Headset 612
17.4
Telephone
Amplifier ------ 614
17.5
Telephone
Call Recorder --------- 616
17.6
Telephone
Conversation Recorder -------- 619
17.7
Telephone
Line In-Use Indicator - 620
17.8
Telephone
Receiver ------ 622
17.9
Telephone-Operated
Calling System ------ 623
17.10
Tester For
Remote Control -------- 625
17.11
Three- Phase
Appliance Protector --------- 627
17.12
Three-Colour
Display Using Bicolour Leds --------- 630
17.13
Time-Controlled
Switch Using Pic16f72 -- 633
17.14
Tiny Dew
Sensor - 639
17.15
Touch - Sensitive
Musical Bell With Timer --------- 641
17.16
Touch Dimmer --- 642
17.17
Traffic
Controller --------- 644
17.18
Transistorized
Logic Probe For Ttl --------- 647
CHAPTER 18
18.1
Ultra-Bright
Led Lamp ----- 649
18.2
Ultrasonic
Transmitter And Receiver ------- 652
18.3
Under-
/Over-Voltage Beep For Manual Stabilizer - 655
18.4
Up/Down
Pulse Separator - 657
18.5
Ups For
Cordless Telephones ------- 659
18.6
Usb Power
Booster --------- 661
18.7
Usb Power
Socket 662
CHAPTER 19
19.1
Versatile
Dc-Dc Converter --------- 664
19.2
Versatile
Power Supply -- 667
19.3
Versatile
Probe -- 668
19.4
Versatile
Water Level Controller - 671
19.5
Visual Ac
Mains Voltage Indicator --------- 676
19.6
Voltage-Based
Controller For Switches --- 678
CHAPTER
20
20.1
Washing
Machine Motor Controller --------- 680
20.2
Watch-Dog
For Telephones --------- 682
20.3
Water- Level
Controller ---- 684
20.4
Water Level
Indicator With Alarm 687
20.5
Water-Level
Controller ---- 689
20.6
Weekly
Reminder 693
20.7
Wireless
Switch -- 695
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