Page 170 - Computing E-Book Grade 6
P. 170

The City School  2020-2021




             Avoid an Obstacle






                Start




                turn obstacle detection beam        on



                clear     obstacle detector        sensor data


                forever



                    forwards until      obstacle detected      anywhere        at speed 5



                    backwards for      30      cm       at speed 5



                            turn backwards         right    90       degrees         at speed     5



                   clear       obstacle detector       sensor data
















































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