This library only support TTL RS232 serial port. When read the data from some RFID card, you will get data like 00 91 6f 0b f5. VCC support 3.3 ~ 5V TX, RX connect to Arduino or Seeeduino T1, T2 is ...

The concept of Smart Trolley improves the shopping experience by automating various processes by using RFID or Radio Frequency Identification technology. It comprises RFID tags for the items in the ...

A consumer specialist has issued advice to anyone purchasing food from major supermarkets including Sainsbury's, Tesco, Morrisons and Asda - revealing how to decode their 'secret code'.