recently I purchased a Grove 125kHz RFID reader to read the ID if hitag RFID tags. I want to send it to a Arduino Leonardo by using the UART serial port and first of all I want to print it on the serial monitor. But unfortunately I am only abled to read EM4100 tags. I do not even detect that a hitag tag is close to the antenna! Can somebody help me with that problem? Is the Grove 125kHz even abled to detect 125kHz hitag?