感測晶片及感測系統

A sensing chip, which is coupled to a controller, is applied to a to-be-sensed object and senses a movement change of the to-be-sensed object. The sensing chip includes a sensing unit, a storage unit, a calculation unit and an output unit. The sensing unit senses the movement change of the to-be-sensed object and generates an accelerating vector. The storage unit stores the accelerating vector generated by the sensing unit. The calculating unit converts the accelerating vector stored in the storage unit to a rotating angle of the to-be-sensed object. The output unit outputs the rotating angle converted by the calculating unit to the controller. Multiple sensing chips and one controller constitute a sensing system that is able to sense movement changes of multiple to-be-sensed objects.