This is a Cybug I built from just a circuit board.
Most of the other components are non standard.
I included some extra pots to adjust for different light levels.
Its behavior is a lot like
T3.
Sensors
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Four upward looking photocell light sensors for navigation.
These can be rotated to keep the light source in any direction.
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Two wire whiskers in front, to feel when it bumps into something.
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Two wire whiskers that drag along the table,
to feel when it starts to go off the edge.
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