说明：  MDT(兼容pic12f509)开发设计，电动车电池盒报警器。关闭电门锁开关电池盒报警器响一声，5s后报警器进入断电状态，5s内重复开关店门锁一次，电池盒报警器发出3声提示音，系统进入预警状态，这时如果有人触碰电动车，系统发出报警声，报警时间12s。预关闭报警器或取消报警状态，需开发一次电门锁。
(Electric car battery box alarm. Power door lock switch off the battery compartment alarm beep, 5s into power after the alarm state, 5s, repeated switching shop door, the battery box alarm issued three beeping sound, early warning system into the state, then if someone contacts touch the electric vehicle, the system sound an alarm, the alarm time 12s. Closed pre-alarm or cancel the alarm state, the need to develop an electric door lock.)