VENDING INDUSTRY. Just published the version 4.3 of MDB protocol to improve cashless transactions

NAMA (US vending industry association), with the contribution provided by the European Vending Association (EVA), announced today the release of the latest version of the Multi-Drop Bus (MDB) standards – Version 4.3.
MDB Version 4.3 allows for a comprehensive treatment of cashless transactions across convenience services. Version 4.3 updates are explicitly aimed at cashless applications based on mobile devices, such as our SELFBLUE.