钥匙提醒系统/本作品以HOLTEK单片机为控制核心，采用无线发射接收方式再人们进出门时进行钥匙检测,对钥匙防落融于本系统控制设计之中，且增加了关门即时提醒功能。汇编-Key reminder system/the work to HOLTEK microcomputer control center with radio transmitting and receiving mode and then when people go into the key test of the key defense down and into the design of the system control, and increased the closing instant alerts.