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3.1 ..........................................................................................................................3
3.2 ..............................................................................................................4
3.3 ......................................................................................................................4
3.4 ..........................................................................................................................8
3.4.1 ................................................................................................9
3.4.2 ............................................................................................................9
3.4.3 ........................................................................9
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}........................................................................................................10
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2.1 ....................................................................................................10
2.2.1 ......................................................................................10
2.2.2 ............................................................................................... 11
2.2 .........................................................................................12
寄 芯种管微00情 ................................................................................13
3.1.ULN2003 ...........................................................................13
3.1.1 ULN2003 .........................................................................................13
3.1.2 ......................................................................................13
3.1.3 . ULN2003 ...........................................................14
3.1 .................................................................................................................15
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