For irregular customers in parking lots, they have to pay parking fee per time rather than per month. It’s inconvenient to do payment by cash.
With RFID technology, we can build an automated payment system. In detail, amount of money is charged to a RFID tag. Each time for the parking, the customer just need to tap the tag to a device, the parking fee is subtracted from the charged money in the tag.
PN532 NFC/RFID controller breakout board – v1.6: The PN532 is the most popular NFC chip, and is what is embedded in pretty much every phone or device that does NFC. It can pretty much do it all, such as read and write to tags and cards, communicate with phones (say for payment processing), and ‘act’ like a NFC tag. If you want to do any sort of embedded NFC work, this is the chip you’ll want to use! (read more)