Wow this is really cool, good luck to yall. A few years ago at one business the head dev and I brainstormed a solution to some issues we were having, and our re

Wow this is really cool, good luck to yall. A few years ago at one business the head dev and I brainstormed a solution to some issues we were having, and our result was essentially this without the phones, but no one had really done it yet or at least well. At the time we were leaning towards rfid instead of bluetooth for security reasons, (range sucked though) but the concept is the same.