Ứng dụng PWM giải mã RFID EM4100 125KHz
Link tham khảo: https://www.serasidis.gr/circuits/RFID_reader/125kHz_RFID_reader.htmLink file pdf mô tả protocol:https://drive.google.com/open?id=1ET4z_WEFL_eRFaNSvebu8PEy5TjU1AyWLink project sử dụng MS51FB9AE / N76E003AT20:https://drive.google.com/open?id=1WoacZY1E25mbS48BX9hX3OnuevH9Bszj