Description: When a switch, the internal speaker intermittent beeps, flashes and four LED lights cycle. After a certain period of time, the LED light is off, the beep stopped. Then the LED display countdown from 9 to 0 in the countdown process, once again touched the switch, we will send the second warning design: internal speakers emit a continuous beep, and four LED indicators together convulsively flashes flickered. Also continue for some time, the LED light is off, the beep stopped.
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开关检测与报警.txt
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