A mobile computing device , comprising: a light sensor configured to detect a coded light signal carried in light output produced by one or more LED-based lighting units (106a-d); one or more user inputs ; and a controller operably coupled with the light sensor and the one or more user inputs , characterized in that the controller is configured to: selectively enable the one or more user inputs based on the detected coded light signal; receive, via the one or more user inputs , input indicative of a desired lighting property adjustment for a lighting effect sensed by the light sensor ; identify one or more of the one or more LED-based lighting units (106a-d) that contribute to the sensed lighting effect, wherein the controller is configured to identify the one or more contributing LED-based lighting units based on the coded light signal carried in the detected light output of the one or more contributing LED-based lighting units; and generate, for wireless transmission to the one or more contributing LED-based lighting units, an instruction configured to cause at least some of the one or more contributing LED-based lighting units to implement the desired lighting property adjustment. a light sensor configured to detect a coded light signal carried in light output produced by one or more LED-based lighting units (106a-d); one or more user inputs ; and a controller operably coupled with the light sensor and the one or more user inputs , characterized in that the controller is configured to: selectively enable the one or more user inputs based on the detected coded light signal; receive, via the one or more user inputs , input indicative of a desired lighting property adjustment for a lighting effect sensed by the light sensor ; identify one or more of the one or more LED-based lighting units (106a-d) that contribute to the sensed lighting effect, wherein the controller is configured to identify the one or more contributing LED-based lighting units based on the coded light signal carried in the detected light output of the one or more contributing LED-based lighting units; and generate, for wireless transmission to the one or more contributing LED-based lighting units, an instruction configured to cause at least some of the one or more contributing LED-based lighting units to implement the desired lighting property adjustment. selectively enable the one or more user inputs based on the detected coded light signal; receive, via the one or more user inputs , input indicative of a desired lighting property adjustment for a lighting effect sensed by the light sensor ; identify one or more of the one or more LED-based lighting units (106a-d) that contribute to the sensed lighting effect, wherein the controller is configured to identify the one or more contributing LED-based lighting units based on the coded light signal carried in the detected light output of the one or more contributing LED-based lighting units; and generate, for wireless transmission to the one or more contributing LED-based lighting units, an instruction configured to cause at least some of the one or more contributing LED-based lighting units to implement the desired lighting property adjustment. <EOS>