EASY5509 timer experiment can be seen on-board light-emitting LED L12 flashes flashing.

说明：EASY5509定时器实验可看到板上发光LEDL12开始闪烁闪烁。

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EASY5509 timer experiment can be seen on-board light-emitting LED L12 flashes flashing.

说明：EASY5509定时器实验可看到板上发光LEDL12开始闪烁闪烁。

youdao