I've been searching the net for hours and have not been able to find an answer to my question, so I hope someone here might be able to help. I was not sure in which forum to place this, so please feel free to move it.
So here is my question: How exactly does the bluetooth technology work for public bike sharing? I keep reading that you are asked to download the app, register, scan the QR code on the bike and then it somehow unlocks via bluetooth. But how does this happen exactly? Does your smartphone receive a key from a server that allows it to pair with the bike? But then they say that you do not need internet for this. And is it always a different key?
And how does the lock open? Does it get an information from the smartphone "hey, I'm the one" and it springs open?
I am confused ...
Please use simple terms since I am not really familiar with this technology. :-P