Page 216 - 15 Dangerously Mad Projects for the Evil Genius
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192      15 Dangerously Mad Projects for the Evil Genius



                                               P A RT S BIN

          Part               Quantity    Description                                   Source
          Pin headers           1        Pin header strip, broken into two sections    Farnell: 1097954
                                         of four pins, and one section of two pins
          Electric screwdrivers  2       Budget 6V electric screwdriver using          eBay
                                         4   AA batteries
          Arduino               1        Arduino Uno or Duemilanove                    Internet,
                                                                                       Farnell: 1813412
          Terminal block        1        Two-way 2 A screw terminal block              Farnell: 1055837
          Switch                1        SPST miniature toggle switch                  Farnell: 1661841
          Battery clip          1        PP3 9V battery clip                           Farnell: 1650667

          Battery               1        PP3 battery
          PIR                   1        Miniature PIR sensor 3 terminal 9–12V         eBay
          Power connector       1        2.1mm power plug                              Farnell: 1200147
          Distance sensor       1        Sharp IR distance sensor (GP2Y0A21YK)         Sparkfun:
                                                                                       SEN-00242
          Distance sensor       1        JST connector for Sharp IR distance sensor    Sparkfun:
          connector          (optional)                                                SEN-08733
                                                                               1
                                                                         1
          Case                  1        Plastic case approximately 6 ⁄2"   3 ⁄2"   2 ⁄2"
                                                                   1
                                         (165mm   85mm   55mm)
                                                        1
          Big wheels            2        Approximately 2 ⁄2" (65mm) diameter model     Model/toy shop
                                         car wheels
                                                        1
          Small wheels          2        Approximately 1 ⁄2" (35mm) diameter model     Model/toy shop
                                         car wheels
          Bracket               2        Plastic, cut into an L shape
          Axle                  1        Short metal axle to suit small wheels and     Model/toy shop
                                         plastic brackets



           An older Arduino Duemilanove is absolutely        You will also need the following tools:
        fine for this project. However, if you want to use
        the latest kit, get an Arduino Uno. In either case,               T OOLBO X
        clones of the open-source hardware are available     ■  An electric drill and assorted drill bits
        for considerably less money than original Arduino
                                                             ■  A hacksaw
        boards.
                                                             ■  A hot glue gun or epoxy glue
           The screwdrivers should be of the type that
                                                             ■  Assorted self-tapping screws
        takes four AA cells. The author found these
        available for around $8 each, made by Duratool.      ■  A computer to program the Arduino

           The wheels were sourced from a toy shop.          ■  A USB-type A-to-B lead (as used for
                                                                printers)
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