89C51通过ID模块读取ID卡号显示在1602液晶上，读取的卡号保存eeprom中，下次刷卡比对卡号后验证通过开门LED模拟的门。-89C51 through the ID module to read the ID card number displayed on the 1602 LCD, read the card number to save EEPROM, the next card to verify the card number after the door through t