Abstract: An apparatus includes a flexible substrate; at least one sensor mounted on the flexible substrate arranged to provide an electrical output signal dependent upon a first parameter; and at least one conductive trace provided on the flexible substrate arranged to provide a direct current path to the at least one sensor and having an electrical property dependent upon a second parameter and arranged to provide an electrical output signal indicative of the second parameter.

Abstract: A strain sensor comprising: a stretchable substrate comprising a plurality of layers; non-stretchable magnetic material fastened to at least one of the plurality of layers; and at least one coil of conductive thread wound through the substrate to mechanically interconnect the plurality of layers, wherein at least a portion of the at least one coil of conductive thread is located around at least a portion of the non-stretchable magnetic material.

Abstract: An apparatus and wearable device comprising an apparatus wherein the wearable device comprises: an actuator arranged to move in a first direction and a second direction in response to an electrical input signal; at least one member, coupled to the actuator and arranged to extend towards the second direction; and wherein the actuator is arranged relative to the at least one member so that displacement of the at least one member caused by movement of the actuator in the first direction is restricted and displacement of the at least one member caused by movement of the actuator in the second direction provides a tactile output.

Abstract: An apparatus comprising: a flexible substrate; at least one sensor mounted on the flexible substrate arranged to provide an electrical output signal dependent upon a first parameter; and at least one conductive trace provided on the flexible substrate arranged to provide a direct current path to the at least one sensor and having an electrical property dependent upon a second parameter and arranged to provide an electrical output signal indicative of the second parameter.

Abstract: An apparatus comprising: an energy harvesting substrate configured to generate electrical energy in response to a stimulus; and an energy storage component printed onto and supported by the energy harvesting substrate, wherein the energy harvesting substrate and energy storage component are configured such that the electrical energy generated by the energy harvesting substrate in response to the stimulus is used to charge the energy storage component.

Abstract: A method and apparatus, the method comprising: applying a conductive contact to a subject's skin; positioning an electrode relative to the conductive contact to enable an electrical connection between the subject's skin and the electrode wherein the electrical connection enables a bio-parameter of the subject to be detected; and wherein at least one of the conductive contact and the electrode are magnetised so as to enable a magnetic field from the magnetised at least one conductive contact and/or electrode to align the conductive contact and the electrode.