Embodiments of this invention are directed towards various sensing mechanisms for bins of an automated inventory system. Further, various communication infrastructures and schemes between the various system components are disclosed. The automated inventory system comprises a plurality of dispensing bins containing stocked items. Various sensors may be used to detect the level or quantity of items within the various bins of the system. If a particular threshold level or quantity in the bin is triggered, a reorder signal is transmitted. The reorder signal may be communicated to other system components via hardwired and/or wireless connections. An RFID reader device may be used to collect reorder data regarding the various bins.