Review on HiLetgo RDM6300 125kHz EM4100 RFID Card Read Module with UART Serial Output for Arduino by Pauly Blake

I bought this to connect with my Arduino and a relay to open and close the door of my garage. This reader transmits the chip ID as long as it is within the detection range. I had a hard time creating logic commands based on it because the data comes in very quickly every time the program loops. I managed to edit the Arduino RDM630 library by adding rfid.end(); The command I use to stop the data after getting the ID of the symbol I'm using to grant access. After my code completes, it opens the garage door store and allows the RFID to be read again with therfid.begin(); command// I hope this helps someone new like me.