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目前显示的是 九月, 2017的博文

14.Arduino learning notebook-ITG3200/3205 gyroscope sensor experiment

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14.Arduino learning notebook-ITG3200/3205 gyroscope sensor experiment   gyroscope                           Juvtmall  ( a company supply  PCB Prototyping ,  PCBA service  and sell kinds of  components, modules  and so on)  ( Catduino has the same function of Arduino)   I t is a device for sensing and maintaining direction, based on the theory of the immortal angular momentum.   The gyroscope is mainly composed of a wheel which can be rotated around  the axis.   Once the gyroscope starts rotating , the gyroscope has a tendency to resist the direction of change due to  the angular momentum of the wheel.   The gyroscope is used for navigation, positioning and other systems.   In 1850,in order to study the earth's rotation, French physicist J.Foucault discovered the rotor   of the high-speed rotation . B ecause of its inertia l  effect , its axis of rotation always point s  in   a fixed direction .   H e uses the Greek word gyro (rotation) and skopein (see) , gather these