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Wobbler

a robot that doesn’t drive or walk, but ‘wobbles’!

Just its unusual method of motion alone makes the mini-robot an eyecatching appearance. It is an extremely simple design, because it consists of hardly anything else besides a processor, two sensors and two little motors. Nevertheless it is possesses a great deal of dexterity when it comes to avoiding obstacles. The moment it ‘spots’ one, it will make an evasive manoeuvre and is off, on its two funny rotating legs.The most remarkable aspect of this little robot is undoubtedly its unique method of movement. It does not actually have any wheels, but has two cams that function as a kind of paddle, driven by a couple of miniature motors. The dimensions of the cams are such that they protrude a little below the underside so that the creature pushes itself off and ‘wobbles’ forwards every time a cam touches the ground.
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R1 = 100kOhm
Capacitors:
C1,C2 = 22pF
C3,C4 = 10µ F 35V
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