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Watch this Homemade Robot doing a perfect quadruple BACKFLIP!
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He used 2-axis acceleration sensors. That's in the head and they primarily measure gravitation. That measurement value changes depending on the angle of revolution. When one sensor is level with ground, that sensor measures zero for gravitation. For the revolution, the positions are divided into four regions. For those boundary locations (up, down, left, right), it detects a signal to stand up or move down. (An up and down sensor circuit with a zero gravitation sensor value as the threshold.) Those signals combined with the pure H,L signals (H,L signal with a zero gravitation sensor value as the threshold) form the trigger. Using these signals as the base, it determines the timing of the bending and straightening the legs."
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15 июл 2013
