Gateway module: performs the gateway function for the communication nodes on board the luminaires. It contains a lighting probe that constantly measures the illuminance value [lux] present in the area in which it is installed. Based on its measurements, the system processes and sends, in real time, a radio frequency command (2.4 GHz) to the light controller module (receiver node) housed inside the luminaire. The device requires a certain power rating (230Vac) and its positioning in a barycentric area with respect to the group of lighting points that it will control.