4
Table of Contents
Unit I A Little bit of theory ........................................................................................... 6
1.1. Servo – What and how ....................................................................................................... 6
1.2. Wireless Network – 802.11 ................................................................................................ 9
Unit II Hardware/software ........................................................................................... 11
2.1. Open Source – nice, simple and free ............................................................................... 11
2.2. Arduino Uno ..................................................................................................................... 12
2.3. WiFly Shield ...................................................................................................................... 16
Overview ...................................................................................................................................... 17
Unit III Conception of Control System ........................................................................ 18
3.1. The idea ............................................................................................................................ 19
3.2 Applications ...................................................................................................................... 24
Unit IV Implementation of Control System ................................................................ 26
4.1 Hardware .......................................................................................................................... 26
4.2 Software ........................................................................................................................... 31
4.3 Observations .................................................................................................................... 54
Conclu ........................................................................................................................ 57
Bibliography ............................................................................................................................ 58
Appendix A Arduino Uno Schematics ............................................................................... 62
Appendix B WiFly SparkFun Schematics ......................................................................... 62
Appendix C Arduino Source Code .................................................................................... 64
Appendix D Delphi Source Code ........................................................................................ 87
Appendix E Project on CD ............................................................................................... 118
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