• phx@lemmy.world
    link
    fedilink
    English
    arrow-up
    2
    ·
    8 hours ago

    What’s the common way for updating these? I have some similar devices that use Wi-Fi but local stores seem to use some sort of nearby transmitter pointex towards the shelves, maybe infrared/optical

    • Agent641@lemmy.world
      link
      fedilink
      English
      arrow-up
      1
      ·
      edit-2
      2 hours ago

      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.

    • Tollana1234567@lemmy.today
      link
      fedilink
      English
      arrow-up
      1
      ·
      4 hours ago

      probably they set certain times of day where there will be surge pricing, like around 12-1pm where more people come in for lunch, and around 4-5pmish where people off work.