A sensor system characterised by: an angular displacement sensor comprising: an elongated structure extending between a first end and a second end, the elongated structure being an elastomer based compliant material that is flexible and bendable from a linear, non-bent position to multiple bendable positions; and a first compliant capacitor, wherein the first compliant capacitor comprises a first conductive layer embedded within and extending from the first end to the second end along a longitudinal length of the elongated structure to form a first electrode of the first compliant capacitor, a second conductive layer embedded within and extending from the first end to the second end along the longitudinal length to form a second electrode of the first compliant capacitor, and an elastomer dielectric layer extending between the first conductive layer and the second conductive layer, wherein the angular displacement sensor is configured to be bendable in several locations in an s-shape configuration; and a circuit coupled to the first compliant capacitor, the circuit configured to detect the angular displacement of the sensor system by measuring a capacitance of the first compliant capacitor to sense bending movement of the elongated structure based on the capacitance of the first compliant capacitor. an angular displacement sensor comprising: an elongated structure extending between a first end and a second end, the elongated structure being an elastomer based compliant material that is flexible and bendable from a linear, non-bent position to multiple bendable positions; and a first compliant capacitor, wherein the first compliant capacitor comprises a first conductive layer embedded within and extending from the first end to the second end along a longitudinal length of the elongated structure to form a first electrode of the first compliant capacitor, a second conductive layer embedded within and extending from the first end to the second end along the longitudinal length to form a second electrode of the first compliant capacitor, and an elastomer dielectric layer extending between the first conductive layer and the second conductive layer, wherein the angular displacement sensor is configured to be bendable in several locations in an s-shape configuration; and an elongated structure extending between a first end and a second end, the elongated structure being an elastomer based compliant material that is flexible and bendable from a linear, non-bent position to multiple bendable positions; and a first compliant capacitor, wherein the first compliant capacitor comprises a first conductive layer embedded within and extending from the first end to the second end along a longitudinal length of the elongated structure to form a first electrode of the first compliant capacitor, a second conductive layer embedded within and extending from the first end to the second end along the longitudinal length to form a second electrode of the first compliant capacitor, and an elastomer dielectric layer extending between the first conductive layer and the second conductive layer, wherein the angular displacement sensor is configured to be bendable in several locations in an s-shape configuration; and a circuit coupled to the first compliant capacitor, the circuit configured to detect the angular displacement of the sensor system by measuring a capacitance of the first compliant capacitor to sense bending movement of the elongated structure based on the capacitance of the first compliant capacitor.