1. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–1 Relay Diagrams

2. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–2 DS89C4x0 Connection to Relay

3. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–3 8051 Connection to a Solid-State Relay

4. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–4 Reed Switch and Magnet Combination

5. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–5 Optoisolator Package Examples

6. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–6 Controlling a Lamp via Optoisolator

7. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–7 Rotor Alignment

8. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–8 StatorWindings Configuration

9. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–9 8051 Connection to Stepper Motor

10. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–10 Common Stepper Motor Types

11. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–11 Using Transistors for Stepper Motor Driver

12. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–12 Controlling Stepper Motor via Optoisolator

13. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–13 DC Motor Rotation (Permanent Magnet Field)

14. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–14 H-Bridge Motor Configuration

15. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–15 H-Bridge Motor Clockwise Configuration

16. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–16 H-Bridge Motor Counterclockwise Configuration

17. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–17 H-Bridge in an Invalid Configuration

18. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–18 Bidirectional Motor Control Using an L293 Chip

19. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–19 Pulse Width Modulation Comparison

20. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–20 DC Motor Connection using a Darlington Transistor

21. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Figure 17–21 DC Motor Connection using a MOSFET Transistor

22. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–1 Selected DIP Relay Characteristics (www.Jameco.com)

23. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–2 Selected Solid-State Relay Characteristics (www.Jameco.com)

24. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–3 Normal 4-Step Sequence

25. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–4 Stepper Motor Step Angles

26. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–5 Half-Step 8-Step Sequence

27. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–6 Wave Drive 4-Step Sequence

28. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–7 Selected Stepper Motors Characteristics (www.Jameco.com)

29. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–8 Darlington Transistor Listing

30. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–9 Selected DC Motor Characteristics (www.Jameco.com)

31. The 8051 Microcontroller and Embedded Systems, 2e By Muhammad Ali Mazidi, Janice Gillispie Mazidi, and Rolin D. McKinlay © 2006 Pearson Education, Inc. Pearson Prentice Hall Upper Saddle River, NJ 07458 Table 17–10 Some H-Bridge Logic Configurations for Figure 17-14