US$35.00 (Plus S&H)
870 pages, ISBN: 0965193403

Connect your MS-DOS/Windows PC to the real world with this best-selling book! Control stepper motors, turn appliances on and off, monitor fluid levels, control a home security system, convert thermometer readings to digital values, detect magnetic fields, and do other useful stuff with the circuits and software found in this book.

All circuits connect directly to the parallel printer port of your PC - you don't have to modify your PC in any way. Each circuit is complete with a schematic, description of circuit theory and operation, a parts list, construction and usage tips, and full source code in C, Basic, and Pascal for the controlling software. You can use each circuit "as is" or modify it for your particular needs. Do as thousands and thousands of others around the world have done - add this book to your electronics reference library! Over 200 large-format pages plus HD floppy disk. Here are just a few of the applications you'll find:

• Controlling stepper and servo motors
• Generating audio tones and speech
• Converting input voltages to binary values
• Driving high power loads and DC relays
• Converting DTMF tones to binary values

Table of Contents
Chapter 1: Display Devices
Chapter 2: Control of Real-World Devices
Chapter 3: Motor Control
Chapter 4: Digital Inputs
Chapter 5: Analog Inputs

Appendix A: Notes on Stepping Motors
Appendix B: Crystal Oscillator Circuits
Appendix C: Interfacing to the Serial Port
Appendix D: The Game Port
Appendix E: Bidirectional Printer Port Adapter
Appendix F: Expanding the Parallel Port to 24-Bit Input/Output
Appendix G: Parallel Printer Port Technical Reference Chart
Appendix H: Gray Code/Binary Conversion Logic
Appendix I: TPU Units