Page 130 - Hacking Roomba
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Chapter 6 — Reading the Roomba Sensors                 111
































                             FIGURE 6-2: Underside of Roomba, showing sensors



                                                     Emitter                     Detector
                                                                               Phototransistor
                                                      LED                      or Photodiode


                                Optoisolator




                              Optical Interrupter





                             Optical Object Detector









                                                               Object (Wall, Floor, etc.)
                             FIGURE 6-3: Common optical emitter/detector configurations
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