RFID Roundup!

Radio-Frequency Identification (RFID) is used in all sorts of daily life: from contactless smart cards to warehouse inventory management, tracking livestock to library book loans. It’s also commonly used in escape rooms and other similar electronic projects where a number of items (secretly embedded with RFID tags) must be placed in particular positions in order to be detected by (equally secret) readers. In this video, I want to compare four of the most common sorts of RFID readers used in Arduino electro