Electronics Projects Magbook Vol 24 (gnv64)

Electronics Projects Magbook Vol 24
EFY Enterprises Pvt Ltd | 2007 | PDF | 219 pages | 19.9 mb

This volume of Electronics Projects is the twenty forth in the series published by EFY Enterprises Pvt Ltd. It is a compilation of 22 construction projects and 69 circuit ideas published in ‘Electronics For You’ magazine during 2003.
In keeping with the past trend, all modifications, corrections and additions sent by the readers and authors have been incorporated in the articles. Queries from readers along with the replies from authors/EFY have also been published towards the end of relevant articles. It is a sincere endeavour to make each project as error-free and comprehensive as possible.
This collection of tested circuit ideas and construction projects in a handy volume, would provide all classes of electronics enthusiasts—be they students, teachers, hobbyists or professionals—with a valuable resource of electronic circuits, which can be fabricated using readilyavailable
and reasonably-priced components. These circuits could either be used independently or in combination with other circuits, described in this and other volumes. We are confident that this volume, like its predecessors, will generate tremendous interest amongst the readers.

BRIEF CONTENTS
Section A: Construction Projects
1. Car Security System With Remote Control ............................................................... 3
2. A Tutorial On 89C51Development Kit ...................................................................... 6
3. PC Based Programmer For The AT89C51 Microcontroller ...................................... 37
4. DTMF Remote Control System ................................................................................. 45
5. Programmable Logic Controller ................................................................................ 54
6. Automated Car Parking System................................................................................. 59
7. Simple 32-Bit Relay Card For PC's Parallel Port ...................................................... 65
8. Temperature Measurement using Transistor As Sensor ............................................ 71
9. Digital Clock With Seconds And Alarm Time Display ............................................. 74
10. Programmable Light Effects Generator ..................................................................... 79
11. Door-Opening Alarm With Remote Control ............................................................. 85
12. Microcontroller-Driven Data Display ....................................................................... 88
13. Simple Multichannel Remote Control System .......................................................... 99
14. Microprocessor-Controlled Thermometer ................................................................. 104
15. DTMF 8-Channel Switching Via Powerline .............................................................111

Section B: Circuit Ideas:
1. Intelligent Water Pump Controller With Water-Level Display ................................. 145
2. Precison 1 Hz Clock................................................................................................... 146
3. Blue Led Night Lamp With Back-UP ........................................................................ 146
4. Infrared Proximity Detector ....................................................................................... 147
5. Computerised Universal Timer .................................................................................. 148
6. Number Guessing Game ............................................................................................ 150
7. Water- Level Indicator ............................................................................................... 151
8. Ultra- Bright Led Lamp ............................................................................................. 151
9. Garage Light And Security Control ........................................................................... 152
10. PWM-Based Speed Control For DC Motors ............................................................. 153
11. Led Sand-Glass Timer................................................................................................ 154
12. Three Colour Display Using Bicolour Leds .............................................................. 155
13. Versatile Emergency Light Using Fluorescent Tubes ............................................... 156
14. Electonic Security System ......................................................................................... 157
15. Clap-Based Switching For Devices ........................................................................... 158