This is a little lego dog that walks like a real dog and uses one motor to controll his legs. The ultrasonic sensor makes him reverse when he comes too near an object and the touch sensor on his tail stops him from reversing into another objectThis is a little lego dog that walks like a real dog and uses one motor to controll his legs. The ultrasonic sensor makes him reverse when h...all »This is a little lego dog that walks like a real dog and uses one motor to controll his legs. The ultrasonic sensor makes him reverse when he comes too near an object and the touch sensor on his tail stops him from reversing into another object«
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