Mechanical microsystem comprising: a. a pair of elastically deformable elements (11, 12), b. a mechanical hinge joining the deformable elements (11, 12) together, and c. at least two electroactive layers (14, 15), the mechanical microsystem being configured such that, from a rest position wherein the deformable elements (11, 12) lie substantially in one and the same so-called rest plane, a deformation of at least one of the deformable elements (11, 12) 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 (14, 15), and/or vice versa, each deformable element (11, 12) having a front face (111, 121) and a rear face (112, 122) 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 (14, 15) 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 (14, 15) 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 (11, 12), b. a mechanical hinge joining the deformable elements (11, 12) together, and c. at least two electroactive layers (14, 15), the mechanical microsystem being configured such that, from a rest position wherein the deformable elements (11, 12) lie substantially in one and the same so-called rest plane, a deformation of at least one of the deformable elements (11, 12) 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 (14, 15), and/or vice versa, each deformable element (11, 12) having a front face (111, 121) and a rear face (112, 122) 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 (14, 15) 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 (14, 15) 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 (11, 12) lie substantially in one and the same so-called rest plane, a deformation of at least one of the deformable elements (11, 12) 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 (14, 15), and/or vice versa, each deformable element (11, 12) having a front face (111, 121) and a rear face (112, 122) 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 (14, 15) 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 (14, 15) 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.