单片机控制电动机的运转，使电动机向一个方向逐渐加速，然后减速，然后在向另一个方向逐渐加速，再减速，如此循环下去。-Microcontroller to control the motor operation, so motor to accelerate gradually in one direction, then slow down, and then a gradual acceleration in the other direction, then slow down, and so cycle continues.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001689s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001906s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001600s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001964s ]
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