Connect your MS-DOS/Windows PC to the real world with this bestselling 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.

Key Features

-controlling stepper and servo motors -generating audio tones and speech -converting input voltages 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


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© 1994
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About the author

Paul Bergsman

Paul Bergsman has taught electronics for over 20 years and has years of experience interfacing real-world devices with computers. He attended Temple University to study electronics and later received a Bachelor of Arts in secondary education from Temple. He regards this book as a union of the two camps of programmers and "hardware hackers."


"An important addition to the technical library of any engineer, technician, student, or electronics hobbyist who works with PCs." --TIES Magazine "According to his publisher, Paul Bergsman has taught technology and mathematics in the Philadelphia public schools for 21 years. The clarity and thoroughness displayed in this book suggest to me that he's a pretty good teacher. I'm giving his book an A+." --Electronics Handbook