• afraid_of_zombies@lemmy.world
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    9 months ago

    Not sure how related this is but in my field, designing industrial control systems, each seperate physical button is about $100 added to the cost over a touchscreen. We call touchscreens HMIs just to be special and sound smart. I imagine the numbers are very similar for cars but I don’t have data to back that up.

    • bane_killgrind@lemmy.ml
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      9 months ago

      BAS inputs (all physical inputs really) require muxed and addressed circuits on the board level to accomplish some connection to the software interface, whereas one touchscreen can have an arbitrary number of software interfaces it interacts with.

      • afraid_of_zombies@lemmy.world
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        9 months ago

        True but wasn’t really thinking of it that way when I said $100 dollars, since I usually have way more I/O than I need. It is the physical operators, the running wire, the mounting, the inventory etc.

        • bane_killgrind@lemmy.ml
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          9 months ago

          Same I sell access control and my comment was really more additional context for the normies. Recently I’ve been thinking about what the barrier of entry for Bacnet native access control hardware would be, and I can’t come up with good reasons that jci or kaba hardware is priced at the level it’s at except to consider it’s proprietary software interface.

          Manufacturers don’t want to supply complete interoperable devices, because then they couldn’t sell software