14
hybrid brick sorter: sort bricks by color and size
The LEGO MINDSTORMS NXT 2.0 robotics kit comes with instructions to build a robot that sorts the colored balls in the set. This chapter goes a bit further by showing you how to build and program a sorter that sorts by both color and size. The Hybrid Brick Sorter robot separates regular LEGO bricks (2-by-4 studs) from smaller bricks (2-by-2 studs) and also separates red, yellow, green, and blue bricks, as shown in Figure 14-1. It drops each type of brick into different buckets or simply onto different places on the ground as shown in the figure.
Figure 14-1: The Hybrid Brick Sorter sorts LEGO ...
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