A modular dispensing apparatus for dispensing articles includes a hub containing electronics and have a plurality of side walls, with each side wall having a first coupling member that faces outward. The apparatus further includes a plurality of cartridges for holding the articles to be dispensed. Each cartridge has an inner wall that includes a second coupling member that is configured to mate with the first coupling member for detachably attaching the cartridge to a respective side wall of the hub. The cartridges are disposed radially beyond the hub such that the plurality of cartridges surround the hub. Each cartridge has an openable lid to provide access to an interior compartment of the cartridge for holding the articles.