基于SLE4442卡的门锁系统 功能 当插入SLE4442逻辑加密卡是 密码正确 单片机发出一个开锁信号给控制电路 控制电路运转 打开门锁-Based SLE4442 card lock system functions when SLE4442 logic encryption card is inserted into the correct password MCU sends an unlock signal to the control circuit controls the doo