What's inside the QR code menu at this cafe?(peabee.substack.com) A few days ago, I went to a cafe near my home. I sat down and scanned the QR code on the table. It took me to a website displaying the cafe's menu. It asked me for my name and Whatsapp mobile number. I entered the details and placed the order.
3 points by atlasunshrugged 70 days ago | 0 comments
Show HN: A1 – Faster, Dynamic, More Reliable NFC Transactions(github.com/overlay-payments) A1 is a highly compact and efficient binary messaging protocol designed for NFC applications as an alternative to the traditional APDU protocols currently used in many NFC devices such as contactless credit cards. A1 is ready for adoption by mobile phone operating systems, NFC terminal devices, and smart cards.