Abstract: The present invention relates to control apparatus. The control apparatus 10 comprises a resiliently deformable body 12 which defines a narrow hole 22 configured to receive lengthwise or widthwise a mobile device 14 and to hold the mobile device snugly when so received. The mobile device 14 comprises a magnetic field sensor 24. The control apparatus further comprises a magnetic field emitting device 20 disposed in or on the resiliently deformable body 12 whereby, in use, the magnetic field emitting device moves relative to the narrow hole 22 and hence the magnetic field sensor 24 of the mobile device upon deformation of the resiliently deformable body.

Abstract: The present invention relates to control (apparatus 70). The control apparatus (70) comprises a mass of resilient conductive material (56) having an electrical property which changes in dependence on deformation of the conductive material. The control apparatus (70) further comprises at least three electrodes (74, 76, 78, 80, 82, 84) in contact with the mass of resilient conductive material (56) at spaced apart locations to thereby define at least two electrical paths through the mass of resilient conductive material between different pairs of the electrodes. The control apparatus (70) is configured such that there is a change in a measurable electrical property between each of the at least two different pairs of electrodes in dependence on deformation of the mass of resilient conductive material. More than one of the at least three electrodes (74, 76, 78, 80, 82, 84) move upon deformation of the mass of resilient conductive material (56).