Page 242 - Robots Androids and Animatrons : 12 Incredible Projects You Can Build
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+12V  Bat.  GND


                                             1
                                              7805  3

                                             2                                   7805 Volt. Reg.  Stepper Motor
                                                16V  100 f               100 pot.  555 Timer  UNC-5804B
                                                                     10K  100K  47K  .20 f  .022 f
                                                        (Direction) SW2  R1  R2  R3  R4
                                             5V                      =  =  =  =  =  C1  =  C2  =  IC1  =  IC2  =  IC3  =  MT







                                                 16  15  14  13  12  11  10  9
                                               IC2

                                                 1  2   3  4  5  6  7  8
                                                                                                          221
                                         +12V

                                                                Yellow  Black  Blue           2-Phase Stepper Motor



                                                Brown  White  Red                                Schematic of basic stepper motor driver circuit

                                                               Out
                                             +5V           4   3          IC1

                                                           8  7  6  2  1
                                                   R4  100K                 C2
                                                           R1  R2  R3   C1

                                                                           SW1  Fast/Slow  Switch  10.8










                                                       Team LRN
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