In an example embodiment, the plurality of second sensors 314 may correspond to a plurality of light sensors that may be configured to generate a plurality of second signals based on detection of light signals. In an example embodiment, a second signal may correspond to a voltage signal that has one or more characteristics such as, but not limited to, an amplitude and a frequency. In an example embodiment, a measurement of the one or more characteristics of the second signal may be indicative of an intensity of light signal detected by the second sensor of the plurality of second sensors 316.