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Grey Walter Tortoises
Yet another kind of robot that I have used for in-class demonstrations of the synthetic approach are Lego Dacta versions of Grey Walter Tortoises, which have been constructed by elaborating the structure of our Braitenberg vehicle 2. This page has information about how to build them, how to program them, and also has some videos of their behavior.
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The main robot file is "tortoise.ldr"; other files define subparts that this main file uses.
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These files are for use with MLCAD and other programs, available from the link above |
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"Tortoise.nqc" was created with Wordpad
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Open it to read it, or save it to disk for later use.
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Behaviour
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Mpeg Video
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AVI Video
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QuickTime Video
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Seeks light in the "dark"; heads straight to light when light appears
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Touch sensors permit obstacle avoidance
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Seeking, then approaching medium light, then repelled by bright light
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Circling to avoid bright light and to avoid darkness
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