Mechanical microsystem comprising: a. a pair of elastically deformable elements , b. a mechanical hinge joining the deformable elements together, and c. at least two electroactive layers , the mechanical microsystem being configured such that, from a rest position wherein the deformable elements lie substantially in one and the same so-called rest plane, a deformation of at least one of the deformable elements displacing it at least partially out of the rest plane induces a flow of electric current in at least one of the at least two electroactive layers , and/or vice versa, each deformable element having a front face and a rear face opposite one another and substantially parallel to the rest plane, the mechanical microsystem being characterised in that a first of the at least two electroactive layers is arranged together with a first deformable element of the pair on a rear face of this first deformable element , and in that a second electroactive layer that is different from the first layer , of the at least two electroactive layers is arranged with a second deformable element of the pair, that is different from the first element , on a front face of this second deformable element . a. a pair of elastically deformable elements , b. a mechanical hinge joining the deformable elements together, and c. at least two electroactive layers , the mechanical microsystem being configured such that, from a rest position wherein the deformable elements lie substantially in one and the same so-called rest plane, a deformation of at least one of the deformable elements displacing it at least partially out of the rest plane induces a flow of electric current in at least one of the at least two electroactive layers , and/or vice versa, each deformable element having a front face and a rear face opposite one another and substantially parallel to the rest plane, the mechanical microsystem being characterised in that a first of the at least two electroactive layers is arranged together with a first deformable element of the pair on a rear face of this first deformable element , and in that a second electroactive layer that is different from the first layer , of the at least two electroactive layers is arranged with a second deformable element of the pair, that is different from the first element , on a front face of this second deformable element . the mechanical microsystem being configured such that, from a rest position wherein the deformable elements lie substantially in one and the same so-called rest plane, a deformation of at least one of the deformable elements displacing it at least partially out of the rest plane induces a flow of electric current in at least one of the at least two electroactive layers , and/or vice versa, each deformable element having a front face and a rear face opposite one another and substantially parallel to the rest plane, the mechanical microsystem being characterised in that a first of the at least two electroactive layers is arranged together with a first deformable element of the pair on a rear face of this first deformable element , and in that a second electroactive layer that is different from the first layer , of the at least two electroactive layers is arranged with a second deformable element of the pair, that is different from the first element , on a front face of this second deformable element . <EOS>