It will probably be wifi and mqtt. You don’t need a whole OS to get mqtt, just a TCP/IP stack.
Possibly it will use BTLE or BT5. If the store is large enough it might make sense for staff to go around with android app and manually update some prices, in which case BT5 in SPP mode might make sense.
It will probably be wifi and mqtt. You don’t need a whole OS to get mqtt, just a TCP/IP stack.
Possibly it will use BTLE or BT5. If the store is large enough it might make sense for staff to go around with android app and manually update some prices, in which case BT5 in SPP mode might make sense.