2 ms·
1. The merchant tells them the amount and there's a QR code on the box to scan. 2. Within seconds. When I paid while over there it was 2 - 5 seconds. It doesn'
by kevinsundar 4y ago
1. The merchant tells them the amount and there's a QR code on the box to scan.
2. Within seconds. When I paid while over there it was 2 - 5 seconds. It doesn't say who the money is from though.
3. The merchant has to check their phone or trust the screen on the customers phone.
It works surprisingly well for 95% of use cases. Usually more than one person isn't checking out in parallel. It lets the merchant continue cooking / packing your items / pouring a tea for someone else / etc.
Video demo: https://www.youtube.com/watch?v=qUR84Qz0KbM https://www.youtube.com/watch?v=qUR84Qz0KbM
- wildzzz 4y agoI would just assume that the vendor's payment app would just play a chime and maybe a readout of the amount received. Every payment app I've used has a notification with name and total when I get money. I'm pretty sure Android can already handle this anyway. Connect the phone to a speaker if you need it louder. Seems like a much cheaper solution than buying a speaker with a built-in modem that you have to pay a monthly fee for unless you just don't own a smartphone.
- macintux 4y agoNot being a street vendor, I’d guess that you: A) definitely don’t want to leave a smartphone someplace easy to check B) don’t want to take the time to unlock your smartphone to see the notification C) do want something that can notify you without taking your attention away from three other customers