JMY**1 series are RFID reader/writer module with UART serial ports.
JMY**1 has various functions and supports multi ISO/IEC standard of
contactless card; the cards from different suppliers. The RF
protocol is complex. But the designer combined some frequent used
command of RF card and then user could operate the cards with full
function by sending simple command to the module through UART
interface. The module and antenna are integrated design. The
impedance between RF module and antenna was tuned by impedance
analyzer. And then the module has excellent performance and
stability.
