Abstract: An optoelectronic arrangement for the detection of relative movements or relative positions of two objects, with the arrangement comprising at least four optoelectronic elements, characterized in that the optoelectronic elements are arranged in at least one first plane and in a second plane different from the first one in such a manner that at least three optoelectronic elements are arranged in the first plane and at least one optoelectronic element is arranged in the second plane. Further, a force and/or moment sensor provided with this arrangement with a first board and a second board, with the first board and the second board being elastically connected with each other and movable relative to one another. Finally, a personal computer keyboard which is provided with such a force and/or moment sensor.