Page 286 - Hacking Roomba
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Chapter 13 — Giving Roomba a New Brain and Senses                    267




                                                         Vin
                                      1               24
                                         SOUT    VIN
                                      2               23
                                         SIN     VSS
                                      3               22
                                         ATN     RES
                                      4               21
                                         GND    VDD
                                      5               20  Vss
                                         P0      P15
                                      6               19
                                         P1      P14
                                      7               18
                                         P2      P13
                                      8               17
                                         P3      P12
                                      9               16
                                         P4      P11
                                     10               15
                                         P5      P10
                                     11               14
                                  R1  12  P6      P9  13
                                         P7       P8                      mini-din 8pin
                                  220                             Vss   8 7
                                 LED1                           DD      6 5
                                                               TXD
                                                                        4
                                                               RXD      3
                             Vss                                        2
                                                             +16VDC     1
                                                                             X1
                             FIGURE 13-8: Schematic for Basic Stamp Roomba
                             Figure 13-9 shows a Board of Education wired up as in the schematic, using the ROI proto-
                             typing plug and with a few extra components from another experiment. For now, ignore the
                             parts below the LED. Thanks to the solderless breadboard, the Board of Education, and the
                             Roomba prototyping plug, wiring up this circuit takes just a few jumper wires.


























                             FIGURE 13-9: Roomba control circuit wired up on the Board of Education
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